| 单词 | alkaloid |
| 例句 | The effects of swainsonine poisoning are chronic—the alkaloid rarely kills outright. Into the Wild 1996-01-01T00:00:00Z And R. leguminicola, it turns out, is a variety of mold that produces a potent alkaloid called swainsonine—a compound well known to ranchers and veterinarians as a killer of livestock. Into the Wild 1996-01-01T00:00:00Z In this effect, the organic phosphorus compounds resemble the alkaloid poison muscarine, found in a poisonous mushroom, the fly amanita. Silent Spring 1962-09-27T00:00:00Z Although preliminary analysis by Clausen and a graduate student, Edward Treadwell, indicated the seeds contained traces of an alkaloid, subsequent, more thorough testing turned up no indication of any alkaloids whatsoever, toxic or otherwise. Into the Wild 1996-01-01T00:00:00Z Eventually we found a very strong link between a change in alkaloid levels and a variation of a single sequence in our gene. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z By looking at the changes in the composition of the alkaloids, we could get an idea of the genes involved. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z And when we tested that plant, it had low alkaloids — confirming we really had found the "sweetness gene". Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z However, some varieties also contain high levels of unpleasantly bitter alkaloids. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z "Fly agaric is well known to contain psychoactive alkaloids, and has a long history of use in Asia and parts of northern Europe for religious and recreational purposes," it adds on its website. Her Royal Highness?... Magic mushrooms at Buckingham Palace 2014-12-12T05:00:00Z In new research, an international team of researchers has for the first time identified the "sweetness gene" responsible for low alkaloid levels. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z Then, with colleagues in France, we looked at markers across the lupin genome and tried to associate high and low alkaloid levels with the genetics. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z It included opium alkaloids, aspirin, atropine, Pervitin, barbiturates, saline mixture and a host of homeopathic products "so dilute that it is impossible to say what they are". The Pursuit of the Nazi Mind: Hitler, Hess and the Analysts by Daniel Pick - review 2012-08-01T07:00:03Z The best way to extract and imbibe the opiate alkaloids from dried poppy pods is to make a tea. My first time scoring heroin 2013-01-01T01:00:00Z Our colleagues in Denmark studied the biochemistry of the different alkaloids in both bitter and sweet varieties. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z There are several different strains that have different low alkaloid genes and if these strains cross-pollinate, the result can be bitter lupin plants once again. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z Normally woolly bears avoid eating plants with bitter compounds, called pyrrolizidine alkaloids, because they can stunt growth. Woolly bear caterpillars use clever tricks to survive 2021-11-22T05:00:00Z All members in this plant family were originally toxic to eat because they naturally produce toxic substances called alkaloids. Do you actually need to salt eggplant in advance? 2021-07-28T04:00:00Z Around 100 years ago, plant breeders in Germany found natural mutations that produced "sweet lupins" with far lower levels of bitter alkaloids. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z We stopped eating carrot tops after reading that they contain the unhealthy levels of alkaloids. Tips to Reduce Food Waste 2015-03-03T05:00:00Z We analyzed 227 varieties of white lupin and tested their alkaloid levels. Is this the protein plant of the future? New study finds "sweetness gene" that makes lupins tastier 2023-10-02T04:00:00Z Krakauer suggests in his book that he was poisoned by a toxic alkaloid on wild potato seeds that he ate. What Disaster Films Miss About Death 2015-10-01T04:00:00Z Several metabolites, including brominated alkaloids and furanoterpenoids, captured from seawater were present in three sponge species that the researchers had examined in detail. Device 'smells' seawater to discover, detect novel molecules 2023-11-08T05:00:00Z The new research results prove that the engineered yeast cells can make other substances in the group of alkaloids than the substance vinblastine, for which the researchers presented results in 2022. Yeast cells can produce drugs for treatment of psychotic disorders 2023-11-10T05:00:00Z Colchicum corms contain colchicine, a powerful alkaloid that’s been used in pharmaceuticals for years. 'Gardening Can Be Murder': The safest place to encounter these toxic plants 2023-10-28T04:00:00Z The good steroids include alkaloids, natural hormones and vitamins. Why Are Steroids Illegal? 2018-09-19T04:00:00Z Wiener also agreed this summer to cut ibogaine, a psychoactive alkaloid found in the iboga shrub, from the decriminalization portion of SB 58 and instead added it to the list of therapeutics to be studied. California moves to decriminalize use of magic mushrooms and other natural psychedelics 2023-09-07T04:00:00Z Deadly nightshade is one of the UK's most poisonous plants and just a couple of berries, which contain tropane alkaloids, would be enough to kill a person. The dangerous plants lurking in plain sight 2023-07-10T04:00:00Z That was a fairly heavy but common cocktail in the "alkaloids era" for anxiety or sleep problems. Death in Sardinia: Murder, an unpublished masterpiece and Italy's misunderstood island 2023-05-28T04:00:00Z Although the fungus reduces the yield of cereals, the effects of the ergot’s alkaloid toxins on humans and animals are of much greater significance. Fundamentals of Biology 2015-01-01T00:00:00Z Instead, they synthesize a large range of poisonous secondary metabolites: complex organic molecules such as alkaloids, whose noxious smells and unpleasant taste deter animals. Concepts of Biology 2013-04-25T00:00:00Z "Considering the potential toxicity of the alkaloids found in the hair, their handling, use, and applications represented highly specialized knowledge," the authors report. Bronze Age Europeans were getting high on all kinds of drugs, hair analysis study finds 2023-04-12T04:00:00Z A chemical analysis of the hair revealed evidence of three alkaloid substances known to produce altered states of consciousness: ephedrine, atropine and scopolamine. Tripping in the Bronze Age 2023-04-06T04:00:00Z It said they contain toxic alkaloids which can cause severe vomiting, noting 27 poisoning cases in the previous year. M&S: Store sorry for displaying daffodils alongside veg 2023-03-01T05:00:00Z The brew contains an Amazon rainforest shrub with the active ingredient N, N-Dimethyltryptamine, or DMT, and a vine containing alkaloids that prevents the drug from breaking down in the body. Psychedelic churches in US pushing boundaries of religion 2023-02-02T05:00:00Z Although the fungus reduces the yield of cereals, the effects of the ergot’s alkaloid toxins on humans and animals are of much greater significance: In animals, the disease is referred to as ergotism. Concepts of Biology 2013-04-25T00:00:00Z The brew contains an Amazon rainforest shrub with the active ingredient N, N-Dimethyltryptamine, or DMT, and a vine containing harmala alkaloids that prevent the drug from breaking down in the body. Psychedelic churches in US pushing boundaries of religion 2023-02-02T05:00:00Z One class of substances, called alkaloids, found in many of these plants has been isolated and found to contain cyclic molecules with an amine functional group. Chemistry 2019-02-14T00:00:00Z By containing toxic alkaloids, the plant is less susceptible to microbe infection and less attractive to herbivores. Anatomy and Physiology 2013-06-19T00:00:00Z The researchers found that noninfected cuttings contained elevated levels of benzylisoquinoline alkaloids, a group of compounds that includes morphine and codeine. Giant Rotten-Smelling Parasite Flower Rafflesia Evokes Host Defenses 2022-03-25T04:00:00Z Naturalists recently witnessed several species of milkweed butterfly harassing, subduing and subsequently feeding on milkweed caterpillars, presumably to get their fill of toxic alkaloids inside the larvae. Milkweed Butterflies Are More Murderous Than They Look 2021-09-09T04:00:00Z The flower contains the alkaloids scopolamine and atropine, which are considered an entheogen—a psychoactive compound used in a spiritual context. Californian cave artists may have used hallucinogens, find reveals 2020-11-23T05:00:00Z The structures of many naturally occurring alkaloids have profound physiological and psychotropic effects in humans. Chemistry 2019-02-14T00:00:00Z The tropane alkaloids are an important class of medicine, but they are produced agriculturally leaving them vulnerable to extreme weather and world events. Revealed: A clearer view of how general anaesthetics actually work 2020-09-01T04:00:00Z She suspects Tetrastigma may brandish these alkaloids preemptively to stave off infection. Giant Rotten-Smelling Parasite Flower Rafflesia Evokes Host Defenses 2022-03-25T04:00:00Z Although butterflies had previously been observed feeding on grasshoppers that harbor toxic alkaloids, no one had ever documented adult butterflies stealing such compounds from their own kin. Milkweed Butterflies Are More Murderous Than They Look 2021-09-09T04:00:00Z Their yeast strain produced only a few micrograms to milligrams of tropane alkaloids per litre of yeast culture — not yet sufficient to replace our current methods of production through plant extraction. Genetically engineered yeast makes medicinal plant products 2020-09-01T04:00:00Z And more: Parts of the plant, when crushed, yield scopolamine, a.k.a. burundanga, a.k.a. devil’s breath — a psychoactive alkaloid deployed by criminals, via a spiked drink or a puff in the face, to disable free will. The Dual History of Poisonous Flowers 2020-08-27T04:00:00Z “Tasmania’s $200 million poppy industry has been given unlimited access to the huge United States market for thebaine, the strongest alkaloid extracted from the narcotic plant,” it reported. How Johnson & Johnson companies used a ‘super poppy’ to make narcotics for America’s most abused opioid pills 2020-03-26T04:00:00Z The ‘molecules from Mars’ he made using this approach included unusual alkaloids derived from marine sponges and rare rainforest plants. Jack Baldwin (1938–2020) 2020-02-06T05:00:00Z The team found an alkaloid called trigonelline that they think may attract bees. Seeking a Culprit When Bumblebee Carcasses Pile Up 2019-08-03T04:00:00Z Tropane alkaloids, like most other plant natural products, are still typically extracted from natural sources, but this approach has many pitfalls. Genetically engineered yeast makes medicinal plant products 2020-09-01T04:00:00Z In July, 2014, he went to a clinic in Tijuana that provided a treatment using ibogaine, a psychoactive alkaloid derived from the roots of a West African shrub, which is illegal in America. Will Hunter Biden Jeopardize His Father’s Campaign? 2019-07-01T04:00:00Z Navajo botanist and geologist Arnold Clifford said the plant is toxic to cows because of its high concentrations of alkaloid. Toxic plants suspected of killing cows in Four Corners 2019-05-25T04:00:00Z But this psychoactive alkaloid never found its clinical indication, as science writer Mike Jay explains in Mescaline, his anthropological and medical history. Altered minds: mescaline’s complicated history 2019-05-19T04:00:00Z The endangered pygmy three-toed sloth lives only on a small island off Panama, where it eats leaves “believed to contain alkaloids with a property similar to Valium,” Cooke writes in her sloth chapter. A Look at the Inner Lives of 13 Species of Animals You Think You Know 2018-07-01T04:00:00Z Ornate moths absorb noxious chemicals called alkaloids from rattlebox flowers and hang onto them as chemical defenses. These Animals Are Winning Valentine’s Day 2018-02-10T05:00:00Z In the sole example from the vast field of synthetic organic chemistry, he outlines the total synthesis of the alkaloid physostigmine, yet divulges nothing about why it is useful — it's a treatment for glaucoma. Chemistry: Explosive moments in the laboratory : Nature : Nature Research 2017-10-10T04:00:00Z As Google writes on its landing page for the Chatterjee doodle: She made significant contributions in the field of medicinal chemistry with special reference to alkaloids, coumarins and terpenoids, analytical chemistry, and mechanistic organic chemistry. Google’s new Doodle celebrates the 100th birthday of Indian chemist Asima Chatterjee 2017-09-23T04:00:00Z Smolke's lab was the first to engineer yeast to produce these alkaloids. Therapeutic developments: Masters of medicine : Nature : Nature Research 2017-05-16T04:00:00Z Derived from plants, belladonna alkaloids are typically used to treat muscle spasms in the digestive tract when combined with the drug phenobarbital, according to the Mayo Clinic. Company recalls baby teething products 2017-04-14T04:00:00Z Plus, the amount of alkaloids in the edible portions of most nightshades is very small, and cooking these foods may cut the alkaloid content by roughly half. The Truth About 6 Celebrity Nutrition Trends 2016-12-15T05:00:00Z Poison frogs get their namesake chemical defenses from alkaloids found in the ants and other critters they consume, says Jonathan Kolby, a National Geographic grantee and director of the Honduras Amphibian Rescue and Conservation Center. Devil Frog Vomits Up a New Ant Species The amount of nitrogen-containing compounds, known as alkaloids, differs between coca cultivars. Track marks 2016-03-31T04:00:00Z In laboratory experiments at the University of California, Davis, scientists fed orange-winged parrots small doses of quinidine, a potentially toxic alkaloid, and followed with what they called a “chaser” of Peruvian clay. Parrots Are a Lot More Than ‘Pretty Bird’ 2016-03-21T04:00:00Z A recall was issued for a manufacturer’s baby teething tablets after it was found they contained “inconsistent amounts of belladonna alkaloids,” the Food and Drug Administration said Thursday. Company recalls baby teething products 2017-04-14T04:00:00Z The most famous such alkaloid, strychnine, is a toxin that once formed the basis of many rat poisons - as well as being one of Norman Bates's murder weapons in the Alfred Hitchcock movie Psycho. Extinct plant species discovered in amber - BBC News 2016-02-15T05:00:00Z As for where the ants get their alkaloids, Kolby says some species may acquire it from the plants they eat. Devil Frog Vomits Up a New Ant Species For coffee drinkers who overdo it, there are morning-after pills that contain rutaecarpine, an alkaloid that may speed up the rate at which your body breaks down caffeine. Can Gizmos Cure Insomnia? 2016-02-08T05:00:00Z A bitter white alkaloid, caffeine is found naturally in the beans, leaves and fruit of more than 60 plants, and it is by far the most widely consumed psychoactive agent consumed worldwide. How America’s love affair with caffeine has sparked a crisis of overdoses — and what the FDA is trying to do about it 2015-09-02T04:00:00Z Potato tubers provide starch and vitamins in abundance, but the fruits of the plants are to be avoided - they contain solanine, one of the poisonous alkaloids of the Nightshade family. The plant that can kill and cure - BBC News 2015-07-13T04:00:00Z Research teams have been working to recreate a complex 15-step chemical pathway by which poppies naturally produce a set of organic chemicals called benzylisoquinoline alkaloids, or BIAs, researchers said in background notes. It May Soon Be Possible to Easily 'Brew' Narcotics 2015-05-18T04:00:00Z Kirkpatrick says these, and some spices like paprika, contain alkaloids, which aggravate inflammation. Is the Autoimmune Paleo Diet Legit? 2015-01-16T05:00:00Z Fly agaric contains alkaloids that can cause hallucinations when ingested. How a Mushroom Found In Buckingham Palace Explains Santa Claus “You get a natural energy boost from its theobromine, a bitter alkaloid of the cacao plant, plus magnesium, which is mother nature’s anti-stress mineral,” she explains. 20 Filling Foods That Help You Lose Weight 2014-11-25T05:00:00Z They all contain powerful alkaloids that affect the human body. The plant that can kill and cure - BBC News 2015-07-13T04:00:00Z Compared with other plants the scientists examined, coffee possessed larger families of genes related to making alkaloid and flavonoid compounds that contribute to the aroma and bitterness of beans. A hot cup of genome: Scientists percolate coffee's genetic secrets 2014-09-04T04:00:00Z Poppies tailored for thebaine production now are about two-thirds of Tasmania’s crop, with morphine poppies making up an additional quarter and codeine and a few other alkaloids the rest. Tasmania, Big Supplier to Drug Companies, Faces Changes 2014-07-19T04:00:00Z At the time, scientists were interested in the biological effects of naturally-occurring chemicals called alkaloids. Today's Google Doodle Honors Pioneering Medicinal Chemist 2014-04-11T22:42:00Z It's also rich in alkaloids, which increase the immune response and activate macrophages, the type of immune cells that fight off viruses. 6 Natural Flu-Fighting Remedies 2013-12-13T04:06:00Z These helped to cover up the basically bitter taste of the alkaloid. A brief history of cocaine 2013-12-07T21:00:00Z Suddenly, I thought of the circulatory stimulant, Coramine, and had the idea of producing an analog compound based on lysergic acid, the building block of ergot alkaloids. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z When the latex dries two months later, the pods are harvested and hauled to factories, where machinery separates the seeds and grinds up the rest to extract the valuable narcotic alkaloids. Tasmania, Big Supplier to Drug Companies, Faces Changes 2014-07-19T04:00:00Z Thankfully, producers like Fentiman’s and Q are making tonics focused more on quinine, the bitter alkaloid extracted from tree bark that forms the traditional base of tonic, than high-fructose corn syrup. Gin & Tonic: Spain's Recession Obsession 2013-03-01T06:55:00Z Many plant poisons are bitter compounds known as alkaloids. Tongues help noses smell food, and vice versa 2012-12-03T21:52:00Z The alkaloid acts in a similar manner to the brain’s own signaling molecule, acetylcholine. Remember It Well: A New Type of On-Switch for Memory 2012-11-05T19:48:53.437Z Depending upon the habitat, host grass, and climate, the fungus contains different ergot alkaloids, for the most part lysergic acid derivatives. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z The manufacturers, GlaxoSmithKline and Johnson & Johnson, provide narcotic alkaloids to their own painkiller units and to other companies worldwide, which have started demanding that the two giants act to ensure reliable supplies. Tasmania, Big Supplier to Drug Companies, Faces Changes 2014-07-19T04:00:00Z Her report also stated that it is technically impossible to completely eliminate these alkaloids from batches of poppy seeds. Researchers campaign to free jailed Russian chemist 2012-09-26T17:20:41.537Z Sequestration is now known to have evolved independently in five different lineages of frogs, all of which sequester lipophilic alkaloids from their diet of arthropods, including ants, beetles, millipedes, and oribatid mites. Poisonous Snakes Can't Resist Toxic Toad Tucker...Or Can They? 2012-08-21T14:45:00.217Z Two of the most important kinds of secondary metabolites are alkaloids and terpenes, both of which have been used by humans for centuries as drugs, fragrances, pesticides and food. Gene duplication frees up enzymes for molecular promiscuity 2012-07-28T11:45:06.120Z Again he proceeded with great caution and chose a dosage of 250 micrograms, the smallest amount of ergot alkaloid deemed to have a noticeable effect. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z As the breeding program developed, drug researchers in Europe and the United States figured out that morphine was not the only alkaloid narcotic of value in opium poppies. Tasmania, Big Supplier to Drug Companies, Faces Changes 2014-07-19T04:00:00Z According to a press release from the American Bird Conservancy, one of the wildlife groups, the frog’s bright orange skin is covered by a secretion of deadly alkaloid poison. Green Blog: Protecting Killer Frogs From Killer Humans 2012-05-09T14:09:09Z Oribatid mites as a major dietary source for alkaloids in poison frogs. Poisonous Snakes Can't Resist Toxic Toad Tucker...Or Can They? 2012-08-21T14:45:00.217Z The poisonous property of hemlock resides chiefly in the alkaloid conine or conia which is found in both the fruits and the leaves, though in exceedingly small proportions in the latter. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z Craig succeeded in determining the chemical structure of lysergic acid, the basic component of many ergot alkaloids. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z An artificial alkaloid, believed to be efficient in abating fever. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z An alkaloid obtained, as a bitter, yellow substance, from the root of the barberry, gold thread, and other plants. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Arthropod alkaloids in poison frogs: A review of the ‘dietary hypothesis’. Poisonous Snakes Can't Resist Toxic Toad Tucker...Or Can They? 2012-08-21T14:45:00.217Z Henbane yields a poisonous alkaloid, hyoscyamine, which is stated to have properties almost identical with those of atropine, from which it differs in being more soluble in water. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z This partial synthesis made it possible to convert the other alkaloids in ergot into ergobasine, which was valuable in obstetrics. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z They include many of the active principles in plants; thus, morphine and narcotine are alkaloids found in opium. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z Its properties are largely due to the alkaloid atropine which it contains. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Tobacco contains an acrid, dark brown oil, an alkaloid, nicotine, and another substance called nicotianine, in which exists its odorous and volatile principles. Health, Happiness, and Longevity Health without medicine: happiness without money: the result, longevity 2012-03-22T02:00:38.537Z It is by no means certain whether the hypnotic action of hops is due to the alkaloid lupulin or possibly to the volatile oil which they contain. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Hofmann’s method of synthesis became the generally recognized basis for producing a number of related structures from the original ergot alkaloid. Turn On, Tune In, Drop Out--and Accidentally Discover LSD [Excerpt] 2013-05-17T13:15:00.210Z Unfertilised eggs of insects have been started into growth by treatment with acids and those of frogs with mercury salts, and the germination of beans quickened by various poisonous alkaloids. Disease in Plants 2012-03-01T03:00:22Z If such results can be ascribed to Parthenium and its alkaloid Parthenina, I think it would be unjustifiable to set them aside. New, Old, and Forgotten Remedies: Papers by Many Writers 2012-02-05T03:00:10Z Physostigmine, fī-sō-stig′min, n. a poisonous alkaloid, the active principle of the Calabar bean. Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) 2012-01-30T03:00:13.887Z The glands obtained from the strobiles are known in pharmacy as lupulin, a name which tends to confusion with that of the alkaloid. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Its active principle is a mixture of a kind of atropine and hyoscyamine, but the true nature of the component alkaloids has never been fully determined. The Gray Phantom 2011-11-04T02:00:21.427Z In its medicinal use glycerin is an excellent solvent for such substances as iodine, alkaloids, alkalis, &c., and is therefore used for applying them to diseased surfaces, especially as it aids in their absorption. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Dat′urine, a poisonous alkaloid in the foregoing. Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) 2011-10-11T02:01:08.990Z The German chemist, Dr. Niemann, has recently been making experiments with coca leaves, and has obtained from them an alkaloid which he proposes to call cocaina. 50 Years Ago: Nerve Cells Talking 2011-09-14T11:45:05.593Z From a review of the literature it would appear that extensive studies had been made as to the effects on living organisms of the alkaloid, nicotine. Tobacco Leaves Being a Book of Facts for Smokers 2011-09-12T02:00:31.107Z Unlike tannic acid, gallic acid does not precipitate albumen or salts of the alkaloids, or, except when mixed with gum, gelatin. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z Auric chloride combines with the hydrochlorides of many organic bases—amines, alkaloids, &c.—to form characteristic compounds. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Cinchona, sin-kō′na, n. a genus of trees, yielding the bark so much valued in medicine, from which the most important alkaloids, quinine and its congeners, are obtained—also called Peruvian bark.—adjs. Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) 2011-10-11T02:01:08.990Z The alkaloid of belladonna, atropine, is a thousand times more toxic for a man than for a goat. The Pros and Cons of Vivisection 2011-08-23T02:00:31.033Z Melinaea caterpillars eat plants mostly of the family that includes deadly nightshade and sequester the pyrrolizidine alkaloid poisons in their tissues. A Supergene Paints Wings for Surviving Biological War 2011-08-15T21:32:02Z Some eleven alkaloids have been isolated from it. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z In Austria, Freud wrote a prominent paper touting the newly isolated alkaloid as a treatment for morphine and opium addiction. How we became a nation of warriors 2011-07-31T16:01:00Z Belladonna, bel′la-don-na, n. the deadly nightshade or dwale, all parts of which are narcotic and poisonous from the presence therein of the alkaloid atropia: the drug prepared from the foregoing. Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) 2011-10-11T02:01:08.990Z Twenty years ago our medical journals contained any number of cases in which a solution of potassium permanganate seemed to have proved effective in neutralizing not only opium itself but its alkaloids and derivatives. Psychotherapy 2011-06-19T02:00:20.053Z Various tests designed to elucidate where and how conolidine does its stuff in mice suggest that the compound doesn’t hit the same cellular machinery as the classic pain-relieving alkaloids codeine and morphine. Natural Pain-Killing Chemical Synthesized 2011-05-24T18:25:00Z In addition to these cell-contents we have good indirect evidence of the existence of large series of other bodies, such as proteids, carbohydrates, organic acids, alkaloids, enzymes, &c. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z They found that the males carried distasteful chemicals known as alkaloids that they had ingested as larvae from plants. Thomas Eisner, Who Cracked Chemistry of Bugs, Dies at 81 2011-03-31T03:32:22Z This constituent is the alkaloid cornutine, which is the valuable ingredient of the drug. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" 2011-02-27T03:00:31.973Z Later codeine was placed upon the market, supposedly an innocent alkaloid of opium, non-habit-forming, but still capable of eliminating pain and suffering due to illness or injury. Habits that Handicap The Menace of Opium, Alcohol, and Tobacco, and the Remedy 2011-02-15T03:00:18.787Z He invented the word tabloid – a combination of tablet and alkaloid – to describe the easily packaged medicines his company was making. Henry Wellcome: from backwoods boy to medicine man 2011-01-09T00:05:34Z Powdered bark from the cinchona tree, found only on the eastern slopes of the Peruvian Andes, contained alkaloids that checked malaria. Malarial mosquitoes helped defeat British in battle that ended Revolutionary War 2010-10-18T19:57:00Z The alkaloids leave a very bad taste for spiders and other creatures that would eat the moths. Thomas Eisner, Who Cracked Chemistry of Bugs, Dies at 81 2011-03-31T03:32:22Z Poison dart frogs have skin that contains harmful alkaloids acting as a chemical defence against predation. 2010-01-29T09:59:00Z On the other hand, the alkaloids of opium administered hypodermically or as ingredients in many patent medicines are thus convenient, and as a result this phase of the evil has reached overwhelming proportions. Habits that Handicap The Menace of Opium, Alcohol, and Tobacco, and the Remedy 2011-02-15T03:00:18.787Z The water extracts certain flavoring and coloring matters, but that which gives it its peculiar stimulant qualities is the alkaloid caffein. A Treatise on Physiology and Hygiene For Educational Institutions and General Readers Most alkaloids occur in plants, but some are formed by decomposition. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide So rigid are the provisions of the law that it is sometimes, especially in interior towns, almost impossible to secure opium or its alkaloids in cases of medical necessity.... Drugging a Nation The Story of China and the Opium Curse Of late the principal objection to the employment of the urary in medicine—its unequal strength—has been completely overcome by the effective alkaloid—the curarin—being extracted. With the World's Great Travellers, Volume 2 Ninety-five per cent. of the patients who have come to me taking morphine or other alkaloids of opium have taken the drug hypodermically. Habits that Handicap The Menace of Opium, Alcohol, and Tobacco, and the Remedy 2011-02-15T03:00:18.787Z They are all, like atropine, mydriatic alkaloids, so-called from the effect on the eye. The Social Gangster Most natural alkaloids contain carbon, hydrogen, nitrogen, and oxygen, but a few contain no oxygen. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide The poppy, on the other hand, produces nothing but opium and its alkaloids. Drugging a Nation The Story of China and the Opium Curse Fifth, they precipitate out of solution albumins, alkaloids, and basic organic coloring matters. The Chemistry of Plant Life The three chief alkaloid constituents of opium are morphine, narcotine, thebaine, of which the first is the principle peculiar to the poppy, and gives it its stupefying power. A Vindication of England's Policy with Regard to the Opium Trade Of all the dangers to be met with in superstitious countries, these mydriatic alkaloids are among the worst. The Social Gangster Although formed originally within the plant, it has been found possible to prepare several of these alkaloids by artificial means. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide It is also obtained as a decomposition product of brucine or strychnine, when these alkaloids are distilled with zinc dust. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The composition and properties of the individual alkaloids have been extensively studied, because of their medicinal uses. The Chemistry of Plant Life Flies find in it a deadly poison, and the poisonous alkaloids are not destroyed by drying. Student's Hand-book of Mushrooms of America, Edible and Poisonous Evidently you didn't know, Dr. Blythe, that the first successful isolation of an alkaloid of ergot from the organs in a case of acute ergotism had been made by two Pittsburgh scientists. The Social Gangster They all possess a pronounced bitter taste, and the poisonous nature of many plants, e.g. hemlock, yew, deadly nightshade, &c., are due to the alkaloids they contain. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide As a result, a considerable amount of the alkaloid was stopped before it entered Albert's body—but some did pass through, for the Zark was not omnipotent. Insidekick The following facts with reference to certain typical members of each group will serve to illustrate the general constitution and properties of the alkaloids. The Chemistry of Plant Life The effect of this third alkaloid, it is claimed, is to neutralize to a greater or less extent the effect of the poisonous one. Student's Hand-book of Mushrooms of America, Edible and Poisonous Niobe was an ideal herbarium for growing the swampland plant from which the complex of alkaloids was extracted. To Choke an Ocean I understand that on Earth these slaves were often addicted to alcohol, gambling and various alkaloids. The Ethical Way Absorptive surfaces were sealed off, body fluids poured into the intestinal tract, and anti-substances formed out of Albert's energy reserve to neutralize whatever alkaloid remained. Insidekick Morphine, C17H19NO3, is the chief alkaloid of opium, which is the dried juice of young pods of the poppy. The Chemistry of Plant Life In this respect it differs from the species A. muscaria, in which the poisonous alkaloid muscarin is not destroyed in the drying, but remains unchanged for years in the dried mushroom. Student's Hand-book of Mushrooms of America, Edible and Poisonous Cocoa as a beverage has a similar action to tea and coffee, inasmuch as the physiological properties of all three are due to the alkaloids and volatile oils they contain. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" Yellow bark, which is not official, yields 3% of quinine, and pale bark about 10% of total alkaloids, of which hardly any is quinine, cinchonine and quinidine being its chief constituents. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" It had not been hurt by the alkaloid, but the pain of its host left it sick with self-loathing. Insidekick Some authorities prefer to regard the alkaloids as waste-products of protein metabolism; but here, again, it is difficult to understand why such products should result in certain species of plants and not in others. The Chemistry of Plant Life To the presence in this mushroom of the neutralizing alkaloid "pilz-atropin" in varying proportions may also be attributed in some measure the safety with which it has been eaten under certain conditions. Student's Hand-book of Mushrooms of America, Edible and Poisonous The physiological action of coffee mainly depends on the presence of the alkaloid caffeine, which occurs also in tea, Paraguay tea, and cola nuts, and is very similar to theobromine, the active principle in cocoa. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The various forms of bark also yield a very small quantity of an unimportant alkaloid, conquinamine. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Neither does the roasted chicory possess any trace of the alkaloid caffeine which gives their peculiar virtues to coffee and tea. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" As a rule, alkaloids are colorless, crystalline solids, although a few are liquids at ordinary temperatures. The Chemistry of Plant Life Since it has been shown that vinegar and the solution of common salt have the power to dissolve the alkaloids of the poisonous mushrooms, it follows that the liquor thus formed must be extremely injurious. Student's Hand-book of Mushrooms of America, Edible and Poisonous It also has the power of absorption of certain diverse substances, such as alkaloids, fluids of all kinds, hence the danger of alcoholic indulgence to the singer. The Voice Its Production, Care and Preservation The bark contains, in the first place, five alkaloids, of which all but quinine may here be dealt with. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The antidote for this poison is found in the skilful use of the alkaloids from the family of the Solanace� or Nightshades, especially in subcutaneous injections of Atropine. Mushrooms of America, Edible and Poisonous There are a great many specific color reactions for individual alkaloids, which are important to toxicologists and pharmacists, but which it would not be desirable to consider in detail here. The Chemistry of Plant Life Tannin may be given internally in doses of one-half dram twice daily for a few days to neutralize the unabsorbed alkaloids of the ergot. Special Report on Diseases of Cattle Later on he comes across the alkaloids, such as strychnine, digitalin, cantharidin, and other terrible poisons of that class. The Harmsworth Magazine, v. 1, 1898-1899, No. 2 A fourth alkaloid, cinchonidine, is isomeric with cinchonine, which yields it when boiled with amyl alcoholic potash, but is laevo-rotatory, slightly soluble in ether, and faintly fluorescent. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Max has discovered a few lethal alkaloids in some greenish tree fungus, but I doubt if the colony were indiscriminate fungus eaters. Competition The alkaloids are conveniently divided into groups, according to the characteristic closed-ring arrangements which they contain. The Chemistry of Plant Life Opium and its alkaloid, morphia, are so commonly used in the practice of medicine that the poisonous result of an overdose is not uncommon. Special Report on Diseases of Cattle That he knew something of medicine is certain, for the action of the alkaloid varies little, and he had the timing to a nicety. A Breath of Prairie and other stories It is an exceedingly good solvent, especially for fats, alkaloids and iodine. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The paralysis of nerve cells and nerve endings with special reference to the alkaloid apocodeine. All About Coffee As the potato belongs to the botanical family containing the dangerous belladonna, tobacco, hyoscyamus, and stramonium, it is not surprising that is should also contain a powerful poisonous alkaloid, namely, solanine. The Home Medical Library, Volume I (of VI) The common preparations are gum opium, the inspissated juice of the poppy; powdered opium, made from the gum; tincture of opium, commonly called laudanum; and the alkaloid or active principle, morphia. Special Report on Diseases of Cattle One showed several kinds of the cinchona barks and the medicinal preparations made from them, and another containing the commercial varieties of the alkaloids of opium. History of the Division of Medical Sciences United States National Museum Bulletin 240, Contributions from the Museum of History and Technology, paper 43, 1964 Uric acid then is not present in this case; and the substance must be guanine, an alkaloid known to be the urinary product of the Spiders. The Glow-Worm and Other Beetles Indeed, those having an idiosyncratic susceptibility to alkaloids should be temperate in the use of tea, coffee, or cocoa. All About Coffee But even that is not necessary, for we have in the willow, the dogwood, and the apple tree, three American barks, which might well replace Peruvian bark by their fluid extracts and alkaloids. Buchanan's Journal of Man, January 1888 Volume 1, Number 12 Brieger, in his earlier work, found that alkaloids were formed by bacteria in a variety of conditions, and that some of them were poisonous. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" It contains from 8 to 14 per cent. of morphine, which is its principal alkaloid. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say We have in this alkaloid an almost perfect physiological antidote for muscarine, and therefore in such cases of poisoning its use should be pushed as heroically as the symptoms of the case will warrant. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. This upon reduction would produce the alkaloid, conin, traces of which have been found in coffee. All About Coffee The fruit, however, may have a pericarp consisting of mucilage, starch, sugar and gum, etc., while the seeds contain fatty matter, fixed or essential oils or alkaloids, as is the case with coffee and cacao. The Medicinal Plants of the Philippines Amongst the latter, the vegetable poisons of known constitution, alkaloids, glucosides, &c., are to be placed. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Acetic acid, when used with alkaloids gives the physician some advantages in prescribing, owing to there being fewer incompatibles. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say Choline.—This alkaloid is of wide occurrence in the animal and vegetable kingdoms. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. Of course, caffein, like any other alkaloid, if used to excess will prove harmful, due to the over-stimulation induced by it. All About Coffee The flowers are narcotic by virtue of a principle resembling morphine, perhaps identical with that alkaloid. The Medicinal Plants of the Philippines We found some vines that were heavily laced with cyanide, and there were recognizable alkaloids in several of the shrubs, but most of them are not that direct. Cum Grano Salis Originally coca wine was made from coca leaves, but it is now commonly a solution of the alkaloid, in a sweet and strongly alcoholic wine. Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say Muscarine.—This is the most important because the most dangerous alkaloid found in the mushrooms. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. Since certain of the effects of coffee drinking have been attributed to this alkaloid, a brief presentment of the pharmacology of caffein will be given as an exposition of the many statements made regarding it. All About Coffee Dragendorf has isolated from the seeds an alkaloid which presents the principal characters of morphine. The Medicinal Plants of the Philippines It belongs to the holly family, but contains a bitter principle similar to, if not identical with, theine, or the alkaloid found in tea and coffee.” The Western World Picturesque Sketches of Nature and Natural History in North and South America Learn'd doctors have employed Much patience, time and skill, To prove tobacco cloyed With acrid alkaloid, With power the nerves to kill! Tobacco; Its History, Varieties, Culture, Manufacture and Commerce A few toxic compounds belonging chiefly to the class termed alkaloids have, however, been definitely isolated. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. In order to avoid this action, the attention of investigators was directed to extraction of the alkaloid in question from the green bean. All About Coffee This alkaloid is very little used in therapeutics and its physiological action is said to be analogous to that of caffeine but weaker. The Medicinal Plants of the Philippines Quinine is the most useful of these alkaloids, and this is found in greatest quantities in Calisaya bark. Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture With arecalin, the alkaloid of the Betel nut, I have no experience, nor have I used its mixture with eserin, recommended by Merck as more potent than either of the drugs in separate solution. Glaucoma A Symposium Presented at a Meeting of the Chicago Ophthalmological Society, November 17, 1913 Codeia, one of the alkaloids of opium, is strongly recommended by Tyson. Special Report on Diseases of the Horse This alkaloid, having the formula C14H16O4N2, is also found in fenugreek, Trigonella fœnum-græcum, in various leguminous plants, and in the seeds of strophanthus. All About Coffee It is better to use the salt of the alkaloid, and that most frequently employed is the salicylate of soda and theobromine in doses of from 2 to 6 grams daily in solution or pill. The Medicinal Plants of the Philippines Their great value depends upon the presence of certain alkaloid substances called quinine, cinchonine, and quinidine, which exist in the bark in combination with tannic and other acids. Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture Concerning the ocular, physiologic action of the two chief alkaloids respectively of Calabar Bean and of Jaborandi, there still exists difference of opinion. Glaucoma A Symposium Presented at a Meeting of the Chicago Ophthalmological Society, November 17, 1913 Valenti states, as his strongest evidence of the protozoan nature of the bodies, that the virus of rabies is neutralized in test tubes by quinin, while no other alkaloid has this property. Special Report on Diseases of the Horse When pure it forms colorless needles melting at 140° C., and, as with all alkaloids, gives a weak basic reaction. All About Coffee This is manifestly impractical and we therefore maintain that the alkaloid is not suited for the treatment of children. The Medicinal Plants of the Philippines In the island of Ceylon, a sloth can take 10 grains of strychnia with safety,—chickens presenting a like immunity to the poisonous effects of this alkaloid. History of Circumcision from the Earliest Times to the Present Moral and Physical Reasons for its Performance "It is a crystalline, bitter and poisonous alkaloid, taken from the deadly nightshade, and the same principle is also found in the thorn apple." The Wonder Island Boys: Adventures on Strange Islands Crude Protein.—In the analysis of foods, the term "crude protein" is used to designate the total nitrogenous compounds considered collectively; it is composed largely of protein, but also includes the amids, alkaloids, and albuminoids. Human Foods and Their Nutritive Value Coffee chaff and roaster-flue dust have been proposed as sources for medicinal caffein, but the extraction of the alkaloid from the former has not proven to be a commercial success. All About Coffee This compound remains insoluble when the alkaloid is treated with ether. The Medicinal Plants of the Philippines Many of the alkaloids are used in medicine, some of the more important ones being given below. An Elementary Study of Chemistry Hemlock is also a well-known and ancient poison; the fruit may contain as much as 0.9 per cent. of alkaloid, and ¼ grain of the alkaloid may produce death. The Witch-cult in Western Europe A Study in Anthropology There are also present in tea an alkaloid, theine, which gives the peculiar physiological properties, and tannin, upon which depends largely the strength of the tea infusion. Human Foods and Their Nutritive Value The bean usually contains a little more than 1% of alkaloids. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Heckel and Schlagdenhauffen have confirmed the febrifuge virtues of the seeds and are uncertain as to the active principle since they found no glucoside or alkaloid in their analysis. The Medicinal Plants of the Philippines The salts are soluble in water, and on this account are more largely used than the free alkaloids, which are insoluble in water. An Elementary Study of Chemistry In medicine it is largely employed in the form of bromides of potassium, sodium and ammonium, as well as in combination with alkaloids and other substances. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Alkaloids.—In some plant bodies there are small amounts of nitrogenous compounds called alkaloids. Human Foods and Their Nutritive Value The British pharmacopoeia contains an alcoholic extract of the bean, intended for internal administration; but the alkaloid is now always employed. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" As caffeine is the principle that acts upon the heart we shall consider the cardiac properties of coffee under the head of that alkaloid, so important that it may best be studied separately. The Medicinal Plants of the Philippines This alkaloid occurs along with a number of others in the bark of certain trees which grow in districts in South America and also in Java and other tropical islands. An Elementary Study of Chemistry Martian alkaloids were tricky things, and bracky smoke contained a number of them. Badge of Infamy The alkaloids, like ammonia, are basic in character and unite with acids to form salts. Human Foods and Their Nutritive Value There is some doubtful evidence of the value of the alkaloid in chorea. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" It counteracts sleep and coma, being very useful in poisoning by opium or its alkaloids. The Medicinal Plants of the Philippines The resulting substance is the ordinary opium which contains a number of alkaloids, the principal one being morphine. An Elementary Study of Chemistry Chemically in addition to the acids already named the Tomato contains a volatile oil, a brown resinous extractive matter very fragrant, a vegeto-mineral matter, muco-saccharin, some salts, and in all probability an alkaloid. Herbal Simples Approved for Modern Uses of Cure Many medicinal plants owe their value to the alkaloids which they contain. Human Foods and Their Nutritive Value The Indians use the bark of another tree, the Maravilla, which is said to yield a much stronger alkaloid than cinchona. The Andes and the Amazon Across the Continent of South America Chronic nicotine poisoning is the result of a gradual intoxication by the absorption of the active principle of tobacco, the alkaloid nicotine. The Medicinal Plants of the Philippines This property is indicated by the name alkaloids, which signifies alkali-like. An Elementary Study of Chemistry A crystalline alkaloid which is fatal to frogs in a dose of one centigramme, has been isolated from the common Stinging Nettle. Herbal Simples Approved for Modern Uses of Cure In animal bodies alkaloids are formed when the tissue undergoes fermentation changes, and also during disease, the products being known as ptomaines. Human Foods and Their Nutritive Value The roots contain the most alkaloid, though the branches are usually barked for commerce. The Andes and the Amazon Across the Continent of South America It is commonly stated that during fermentation there is generated theobromine, the alkaloid which gives cacao its stimulating properties, but the estimation of theobromine in fermented and unfermented beans does not support this. Cocoa and Chocolate Their History from Plantation to Consumer The pure alkaloids, with the exception of morphine in its crystalline form, are soluble in ether. Aids to Forensic Medicine and Toxicology This is a volatile alkaloid which is not poisonous, and is thought to be almost identical with ammonia. Herbal Simples Approved for Modern Uses of Cure At one time it was believed that oats contained a special alkaloid having a stimulating effect when fed to animals. Human Foods and Their Nutritive Value The bark is said to be stronger than that from Ecuador, yielding twice as much alkaloid, or eleven per cent. The Andes and the Amazon Across the Continent of South America While the phanerogams or flowering plants annually contribute to the list of newly discovered alkaloids, with the exception of muscarine and amanitine, no alkaloid has as yet been definitely recognized among the cryptogams. Scientific American Supplement, No. 315, January 14, 1882 The filtrate is shaken with ether to remove fat, etc., the ether separated, the watery solution neutralized with soda, and then shaken with ether, which removes the alkaloid in a more or less impure condition. Aids to Forensic Medicine and Toxicology It contains "fumaric acid," and the alkaloid "fumarina," which are specially useful for scrofulous diseases of the skin. Herbal Simples Approved for Modern Uses of Cure Pepper owes its properties to an alkaloid, piperine, and to a volatile oil. Human Foods and Their Nutritive Value If powdered strychnine alkaloid is used, prepare the hot starch paste first. Life History of the Kangaroo Rat The plant yielding the alkaloid, Lycopodium complanatum, belongs to the group of angiospermous cryptogams. Scientific American Supplement, No. 315, January 14, 1882 The ether floats on the surface, holding the alkaloids, except morphine, in solution. Aids to Forensic Medicine and Toxicology These products, which are of the nature of alkaloids, act immediately on their entrance into the circulation, and produce effects in direct proportion to the amount absorbed. Manual of Surgery Volume First: General Surgery. Sixth Edition. The caffein or theine in tea is an alkaloid that has characteristic physiological properties. Human Foods and Their Nutritive Value The dried leaves and roots of these plants yield a poisonous alkaloid that was formerly used medicinally. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Its bitter taste led the author to suspect an alkaloid in it. Scientific American Supplement, No. 315, January 14, 1882 If the alkaloid is volatile, oily streaks appear on the glass; if not volatile, crystalline traces will be visible. Aids to Forensic Medicine and Toxicology The laboratory is superior to the forest because other forms of local anesthetics, such as eucain and novocain, can be made that are better than the natural alkaloid because more effective and less poisonous. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries What alkaloid similar to the theme and caffeine of tea and coffee is present in cocoa and chocolate? Human Foods and Their Nutritive Value The dried sclerotia of ergot obtained from rye is a source of several medicinal alkaloids and lysergic acid. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada To prepare the alkaloid the dried plant is chopped up and twice exhausted with boiling alcohol of 90 per cent. Scientific American Supplement, No. 315, January 14, 1882 Absolute alcohol will then dissolve out the alkaloid, and leave it on evaporation in a crystalline form. Aids to Forensic Medicine and Toxicology Some people have been drinking coffee, although they do not like the taste of it, because they want the stimulating effect of its alkaloid, caffein. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Foods contain numerous nitrogenous organic compounds, which, for purposes of study, are divided into four divisions,—proteids, albuminoids, amids, and alkaloids. Human Foods and Their Nutritive Value Plants of the genus Veratrum, especially V. viride of North America, yielding a toxic alkaloid used medicinally. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Hence he concludes that solar light plays a part in the generation of the alkaloids in plants. Scientific American Supplement, No. 508, September 26, 1885 Contains the poisonous principle coniine, a volatile liquid alkaloid with a mousy smell; insoluble in water; soluble in alcohol, ether, and chloroform. Aids to Forensic Medicine and Toxicology The alkaloid which it contains takes effect only some hours after its ingestion, when it has entered the blood-streams and begun its disintegrating action upon the red corpuscles. Jacqueline of Golden River What effect do some alkaloids exert upon the animal body? Human Foods and Their Nutritive Value Dried leaves of the henbane containing the alkaloids hyoscyamine and scopolamine, used as an antispasmodic and sedative. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada This view is corroborated by the circumstance that the tropical cinchonas, if cultivated in our feebly lighted hothouses, yield scarcely any alkaloids. Scientific American Supplement, No. 508, September 26, 1885 Method of Extraction from the Stomach.—The alkaloid may be separated by the process of Stas-Otto. Aids to Forensic Medicine and Toxicology The discovery of the solubility, under certain conditions, of the active alkaloids, quinine, morphia, &c., in oil, by Mr. W. Bastick, greatly favors the supposition of analogous compounds in soap. The Art of Perfumery And Methods of Obtaining the Odors of Plants The alkaloids of the fungus have already been noted. 36Among the greater number of plant families, no alkaloids have been found. Scientific American Supplement, No. 623, December 10, 1887 Alcohol dissolves alkaloids, fatty and resinous substances, and is largely used as a menstruum in obtaining the active principles of drugs in an available form for administration. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada And after fifty years their prophecy had been fulfilled, for at the present time we could prepare an artificial sweetening principle, an artificial alkaloid, and salacine. Scientific American Supplement, No. 613, October 1, 1887 Tobacco.—Nicotiana tabacum owes its poisonous properties to its alkaloid nicotine, a volatile, oily, amber-coloured liquid, with an acrid taste and ethereal odour; soluble in water, alcohol, ether, and chloroform. Aids to Forensic Medicine and Toxicology There is a little alkaloid in the skin, but this is lost in the cooking. The Chemistry of Food and Nutrition In the note on the constitution of alkaloids in a recent issue, we referred more especially to what we may term the less highly organized bases. Scientific American Supplement, No. 623, December 10, 1887 It is a matter of importance to ascertain whether the treatment which the juice receives after its collection can influence in any way the amount of alkaloids, or of the other principles in opium. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. A Violet Coloring Matter from Morphine.—The first true coloring matter obtained from a natural alkaloid. Scientific American Supplement, No. 829, November 21, 1891 Tea, coffee, or tannin, to precipitate the alkaloid. Aids to Forensic Medicine and Toxicology On the other hand, nauseous and poisonous alkaloids, oils, resins, etc., serve as a protection against the attacks of browsing animals, birds, caterpillars, snails, etc. The Chemistry of Food and Nutrition This is not exactly the case with the higher groups of alkaloids—the derivatives of pyridine and quinoline. Scientific American Supplement, No. 623, December 10, 1887 Cinchona bark contains two alkaloids, cinchonia and quina, to which its active properties are due; the former is best obtained from gray bark, the latter from yellow bark. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. Learn'd doctors have employed Much patience, time, and skill, To prove tobacco cloyed With acrid alkaloid, With power the nerves to kill. Pipe and Pouch The Smoker's Own Book of Poetry This test is so delicate as to show the 1/25000 of a grain of the alkaloid. Aids to Forensic Medicine and Toxicology The benefit is felt at once, before the alkaloid can enter the blood stream and stimulate the nerve centres. The Chemistry of Food and Nutrition It so happens that the oldest alkaloids are in these groups. Scientific American Supplement, No. 623, December 10, 1887 Opium owes its activity to the alkaloid morphia. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. It was Unamuno himself who once said that the Basque is the alkaloid of the Spaniard. Tragic Sense Of Life Brucine.—This alkaloid, found associated with strychnine, possesses the same properties, though in a less powerful degree. Aids to Forensic Medicine and Toxicology Stimulants.—Tea and coffee contain an alkaloid theine, besides volatile oils, tannin, &c. The Chemistry of Food and Nutrition On the other hand, the alkaloid can be transported and kept without decomposition. Scientific American Supplement, No. 623, December 10, 1887 This chewing of the Aram-root is the very being of kava as a beverage, for it is a ferment in the saliva that separates alkaloid and sugar and liberates the narcotic principle. White Shadows in the South Seas But it would be more accurate to say "one of the two alkaloids." Tragic Sense Of Life They are probably allied to neurine, an alkaloid obtained from the brain and also from the bile. Aids to Forensic Medicine and Toxicology These alkaloids, being purins, are open to the general objections named elsewhere. The Chemistry of Food and Nutrition It is noteworthy that the synthesis of the alkaloids has led to some of the most brilliant discoveries of the present day, especially in the discovery of dye stuffs. Scientific American Supplement, No. 623, December 10, 1887 This arrangement is in proportion to the abundance of the alkaloid quinine, now used in medicine instead of the bark itself. Lippincott's Magazine of Popular Literature and Science Volume 11, No. 22, January, 1873 The alkaloid delphinia may also be employed, but possesses no advantage except in the preparation of an ointment, when from any reason that form of application should be preferred. Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 For the separation of an alkaloid, the following is the process of Stas-Otto. Aids to Forensic Medicine and Toxicology Were this attempted, poisoning would result from the large quantity of alkaloid. The Chemistry of Food and Nutrition He has proved that the alkaloid so obtained is identical with that prepared from piperine. Scientific American Supplement, No. 623, December 10, 1887 Their activity may be productive of a poison, or putrefactive alkaloid, which is absorbed. Scientific American Supplement, No. 787, January 31, 1891 He had been shot down with an ammonia gun, and the powerful alkaloid gas had almost killed him. Ted Strong's Motor Car This process is based upon the principle that the salts of the alkaloids are soluble in alcohol and water, and insoluble in ether. Aids to Forensic Medicine and Toxicology Oats contain a substance called avenin, apparently an alkaloid, which has an irritating action; the quantity is variable. The Chemistry of Food and Nutrition Most of our knowledge, as we now have it, regarding such alkaloids as muscarine and choline has been acquired during the past dozen years. Scientific American Supplement, No. 623, December 10, 1887 Both the coca used and the fluid extract were then assayed by the modern methods, for the proportion of the alkaloid they contained. Scientific American Supplement, No. 492, June 6, 1885 Nicotine itself, of course, is a volatile alkaloid base of which there is only the merest trace in tobacco. The Night Horseman If a fixed alkaloid, treat the acid solution with soda or potash and ether, evaporate ethereal solution after separation, when the solid alkaloid will be left in an impure state. Aids to Forensic Medicine and Toxicology The volatile oils of mustard, caraway, cloves, etc., are used in medicine; also the alkaloids of coffee and cocoa. The Chemistry of Food and Nutrition Among the most complex alkaloids are those of the quinine group. Scientific American Supplement, No. 623, December 10, 1887 A scanty, greenish, oily residue was left in the capsule, in which there was no appearance of a crystallized alkaloid. Scientific American Supplement, No. 492, June 6, 1885 Brucin, an alkaloid, allied in action to strychnine, though much weaker, being only a twenty-fifth of the strength. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge The most important active principles of opium are the alkaloids morphine and codeine. Aids to Forensic Medicine and Toxicology In plants are found a large number of powerful volatile oils, alkaloids, bitter resins, etc. The Chemistry of Food and Nutrition A fashion in physic, like fashions in frills: The doctors at one time are mad upon pills; And crystalline principles now have their day, Where alkaloids once held an absolute sway. Punch, or the London Charivari, Volume 99, October 4, 1890 As a check upon the results, the solution of alkaloid washed out was titrated with normal solution of oxalic acid. Scientific American Supplement, No. 492, June 6, 1885 Quinine, an alkaloid obtained from the bark of several species of the cinchona tree and others, and which is employed in medicine specially as a ferbrifuge and a tonic. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge Belladonna.—The root, leaves, and berries, of the Atropa belladonna are poisonous from the presence of alkaloid atropine. Aids to Forensic Medicine and Toxicology It is remarkable that amongst nearly all nations, either alcohol in some form or one of the stronger alkaloids is in common use. The Chemistry of Food and Nutrition The asparagus is remarkable as containing a crystalline alkaloid called asparagin, which is thought to possess diuretic properties. Science in the Kitchen. If it contains any poison we may assume that it will be some alkaloid, though I will test for arsenic too. The Mystery of 31 New Inn Nicotine, a poisonous alkaloid extracted from the leaves of the tobacco plant, is a colourless, oily liquid, readily soluble in water, and has a pungent odour. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge A cadaveric alkaloid or ptomaine has been found in the body, possessing many of the actions of aconitine. Aids to Forensic Medicine and Toxicology These have stimulating properties, although differing from the more complex properties of alcohol and the alkaloids. The Chemistry of Food and Nutrition No doubt long ago even Mr. Bensington, when he chose this calling, when he consecrated his life to the alkaloids and their kindred compounds, had some inkling of the vision,—more than an inkling. The Food of the Gods and How It Came to Earth But a man of Weiss's type would almost certainly use an alkaloid, on account of its smaller bulk and more ready solubility. The Mystery of 31 New Inn Nitrogen, a gaseous element which constitutes one-fourth in volume of the atmosphere, is the basis of nitric acid, and is an essential constituent of proteids, alkaloids, and albuminoids. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge The alkaloids, that most important class from a medical and pharmaceutical point of view, have until quite recently been defined in the books simply as "vegetable bases, containing nitrogen." Scientific American Supplement, No. 415, December 15, 1883 It has been shown to contain the alkaloid nicotia, and this is probably its only active component. The Atlantic Monthly, Volume 06, No. 34, August, 1860 It is generally believed by biologists that the milky juice, aromatic compounds, alkaloids, etc., found in plants have no direct use in the economy of the plant. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 In 1864 Chambers reported to the Lancet the recovery of a child of four years who took a solution containing 1/2 grain of the alkaloid. Anomalies and Curiosities of Medicine It is also found with other alkaloids in the thorn apple and deadly nightshade. The Gutenberg Webster's Unabridged Dictionary Section F, G and H It was early recognized that the alkaloids were complex amines or ammonia derivatives. Scientific American Supplement, No. 415, December 15, 1883 In honor of its sponsor, Botany has named the plant Nicotiana tabacum, and Chemistry distinguished as Nicotin its active alkaloid. The Atlantic Monthly, Volume 06, No. 34, August, 1860 Why certain plants produced aromatic oils and ethers, while others growing under the same conditions produced special acids or alkaloids, was a subject of endless speculation. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 It was but for a moment, for the action of the alkaloid is rapid. A Study in Scarlet The official preparation is an ointment which contains one part of the alkaloid in fifty. The Project Gutenberg Encyclopedia Volume 1 of 28 Hence the difficulty in acquiring a knowledge of the molecular structure of those alkaloids at all comparable with that attained in the case of other organic compounds. Scientific American Supplement, No. 415, December 15, 1883 When obtained by distillation, a pound of leaves will yield only two grains; it is therefore in a much smaller proportion than the alkaloid, forming only one half of one per cent. The Atlantic Monthly, Volume 06, No. 34, August, 1860 It is a nitrogenized matter which seems to belong to the group of alkaloids; is uncrystallizable, finely granular, and brown in mass. Scientific American Supplement, No. 384, May 12, 1883 I was a fairly good dispenser, so I worked this alkaloid into small, soluble pills, and each pill I put in a box with a similar pill made without the poison. A Study in Scarlet This should be painted on the affected part with a camel's hair brush dipped in chloroform, which facilitates the absorption of the alkaloid. The Project Gutenberg Encyclopedia Volume 1 of 28 Of course synthesis could not be applied until analysis had revealed something of the molecular grouping of these compounds, so the action of different classes of reagents was tried upon the alkaloids. Scientific American Supplement, No. 415, December 15, 1883 Coffee, tea and chocolate contain a poisonous alkaloid which is generally called caffeine. Maintaining Health Formerly Health and Efficiency The alkaloid or active principle of the drug is commonly used. Common Diseases of Farm Animals Liebig next published an analysis of the alkaloid, which was afterward shown to be incorrect. Scientific American Supplement, No. 324, March 18, 1882 It contains considerable quantities of the alkaloid pseudaconitine, which is the most deadly poison known. The Project Gutenberg Encyclopedia Volume 1 of 28 We may now look at the question of the decomposing effect of reagents upon the alkaloids. Scientific American Supplement, No. 415, December 15, 1883 He was obliged to eat a few mouthfuls of sago before the alkaloid could act upon his nervous system. The Opium Habit After calcining the bones, I treated the white ash with various acids and alkaloids, and with fire and water, returning again and again to the trials when I had time. A March on London By leaving the solution to evaporate spontaneously the alkaloid is obtained in silky crystals. Scientific American Supplement, No. 324, March 18, 1882 Alcohol is of great medicinal value as a solvent, being used to form solutions of alkaloids, resins, volatile oils, iodoform, &c. The Project Gutenberg Encyclopedia Volume 1 of 28 Nicotine, C10H14N2, the next simplest in formula of the alkaloids, is a tertiary base, that is, contains no replaceable hydrogen atoms in its molecule. Scientific American Supplement, No. 415, December 15, 1883 Almost without exception the vegetable poisons belong to what are called the "nitrogenous alkaloids." The Opium Habit The boiling of coffee extracts all its oil and alkaloid too, and, when it is drunk with the grounds, allows the whole nutriment to be available. The Atlantic Monthly, Volume 03, No. 15, January, 1859 Codeine gives the same reaction, but no other of the alkaloids. Scientific American Supplement, No. 324, March 18, 1882 How should we be handicapped if we still had to fight malarial disease with the crude Peruvian bark instead of its chief alkaloid, quinine! Beacon Lights of History, Volume 14 The New Era; A Supplementary Volume, by Recent Writers, as Set Forth in the Preface and Table of Contents Turning now to the non-volatile and oxygenized bases, we take up first the opium alkaloids. Scientific American Supplement, No. 415, December 15, 1883 The nitrogenous alkaloids owe the first part of their name to the fact of containing this element; the second part to that of their usually making neutral salts with acids, like an alkaline base. The Opium Habit One of a class of animal bases or alkaloids formed in the putrefaction of various kinds of albuminous matter. A Practical Physiology The liquid is filtered and evaporated, precipitated by an excess of a strong solution of potassium carbonate, and the alkaloid extracted by chloroform. Scientific American Supplement, No. 324, March 18, 1882 In smoking, some of the nicotine is decomposed, forming pyridine, picoline, and other poisonous alkaloids. Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics Its meythl ester, which can be formed from it, is codeine, one of the accompanying alkaloids of opium. Scientific American Supplement, No. 415, December 15, 1883 The remainder, five in number, are the opium alkaloids, which act generally upon the whole system, but particularly, in their immediate phenomena, upon the brain. The Opium Habit Both contain stimulating alkaloids, theobromine and caffeine, and fat is a notable constituent of cocoa. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 I also tried in the same manner the alkaloid sold as daturine, which is believed not to differ from atropine, and it produced no effect. Insectivorous Plants This was botulin itself, the pure toxin, an alkaloid just like that which is formed in meat and other food products in cases of botulism. The Film Mystery Besides the methyl derivative, however, others are possible, and several have been recently prepared, giving rise to a class of artificial alkaloids known as codeines. Scientific American Supplement, No. 415, December 15, 1883 Every day that a man uses opium these cumulative alkaloids get a subtler hold on him. The Opium Habit It is derived from henbane, among ether things, and is a rapid, energetic alkaloid, more rapid than chloral and morphine. Guy Garrick It's a strange poison—an alkaloid, I'm sure, but not one that one ordinarily encounters. Gold of the Gods "Your dead man was murdered by means of aconite, of which, you know, the active principle is the deadly alkaloid aconitine." The Romance of Elaine Sequel to "Exploits of Elaine" If we go now to the cinchona alkaloids, we meet with exceedingly interesting results. Scientific American Supplement, No. 415, December 15, 1883 So to speak, the tissues have now combined with their full equivalent of all the poisonous alkaloids in opium. The Opium Habit It is the pure alkaloid, or rather one of them, that we have to deal with here— veratrine. The Treasure-Train I've looked for all the ordinary known poisons and some of the little-known alkaloids, but, Kennedy, I always get back to the same point. Gold of the Gods Nicotine," he went on, "was about the first alkaloid that was recovered from the body by chemical analysis in a homicide case. The War Terror The alkaloid has been shown to be a tertiary base. Scientific American Supplement, No. 415, December 15, 1883 The other chief active alkaloids, five in number, are those which specially possess the cumulative property. The Opium Habit Many years ago scientists analyzed its poisonous alkaloids and found what they called bulbosine. The Treasure-Train Of all the dangers to be met with in superstitious countries, these mydratic alkaloids are among the worst. Gold of the Gods "Aconite," he answered slowly, "of which the active principle is the deadly poisonous alkaloid, aconitin." The War Terror The alkaloid atropine has been quite thoroughly studied with results of great interest. Scientific American Supplement, No. 415, December 15, 1883 After two months, in which I passed from laudanum to crude opium, I finally settled on the alkaloid morphia, as being the most powerful of all the preparations of opium. The Opium Habit That is one of the effects of the mydriatic alkaloids, of which this is one. The Treasure-Train They are all like atropine, mydriatic alkaloids," he proceeded, "so called from the effect they have on the eye. Gold of the Gods As in the case of most of the poisonous alkaloids, aconitin does not produce any decidedly characteristic post-mortem appearances. The War Terror Piperine, the alkaloid of pepper, has also been well studied. Scientific American Supplement, No. 415, December 15, 1883 It was the first alkaloid to be synthesised. The Dream Doctor Many of the text-books at the present time fail to say anything about the remarkable effect produced by large doses of this terrible alkaloid. The Treasure-Train The physiological action of coffee depends on the presence of the alkaloid caffeine, which varies from 0.6 percent in the Arabian berry to 2 percent in that of Sierra Leone. Number Seventeen There is no way to distinguish it from other alkaloids, in fact, no reliable chemical test. The War Terror Sinapine, the alkaloid which exists as sulphocyanate in white mustard seed, yields, under the same reaction as that applied to atropine and piperine, quite different results. Scientific American Supplement, No. 415, December 15, 1883 Now there are two kinds of alkaloids which are sometimes called vegetable and animal. The Dream Doctor Amanitin is a wonderful and dangerous alkaloid, which is absorbed in the intestinal canal. The Treasure-Train The atrophying muscles of the digestive tube, unable to hurry on the mixed products of indigestion; fermentation; and micro-organisms inciting fermentations and elaborating toxic alkaloids, poison and disorder the functions of life. The Four Epochs of Woman's Life; a study in hygiene He had used the usual tests, and found the presence of the alkaloid of hemlock, known under the name of conia. Madame Midas The conviction accordingly forces itself upon us that, if we want to attack the problem of building up any of these important alkaloids artificially, we must turn to these bases as our starting point. Scientific American Supplement, No. 415, December 15, 1883 "The alkaloid was present, that is certain," he told Kennedy. The Dream Doctor In the first place, I must tell you that both Dr. Bannerman and myself were engaged at the time in an investigation upon the nature and properties of the vegetable alkaloids, and especially of aconitine. Hilda Wade, a Woman with Tenacity of Purpose Dr. Ross obtained these "alkaloids of putrefaction," as he called them, from blood which had been allowed to putrefy in a warm place. Nature Cure The alkaloids which develop during the smoking of a pipe are entirely different from those of a cigar. The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken The study of the decomposition products of the cinchona alkaloids especially points quite distinctly to the probable existence in quinine of a hydrogen addition product of pyridine, in combination with a methyl-quinoline group. Scientific American Supplement, No. 415, December 15, 1883 If he is ignorant of the nature of these substances, he may easily mistake them for vegetable alkaloids. The Dream Doctor Ergot and hydrastis and its alkaloids seem to have no effect on the vasomotor center. Disturbances of the Heart The processes of decay of these tumor materials liberate large quantities of alkaloids of putrefaction, and these, in turn, stimulate the normal, healthy cells with which they come in contact to rapid, abnormal multiplication. Nature Cure Its active principle, an alkaloid—nicotine or nicotia —is combined with a vegetable acid. The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken It must not be supposed that no syntheses of alkaloids have been effected as yet. Scientific American Supplement, No. 415, December 15, 1883 "I had expected to find a poison, perhaps an alkaloid," he continued slowly, as he outlined his discoveries by the use of one of the most fascinating branches of modern science, spectroscopy. The Dream Doctor Here essential oils are manufactured; here alkaloids; here starches, fatty substances, resins, sugars, acids. More Hunting Wasps Is it not self-evident that in a digestive tract filled most of the time with large masses of partially digested and decaying animal food enormous quantities of alkaloids of putrefaction are created? Nature Cure Some of the alkaloids, such as morphine, strychnine, &c., are crystalline in character, but this, along with a few others, is liquid. The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken The formation of a series of alkaloids under the name of codeines, by the substitution of other organic radicals instead of methyl in the codeine reaction, has already been alluded to. Scientific American Supplement, No. 415, December 15, 1883 No general reaction is known by which the ptomaines can be distinguished from the vegetable alkaloids. The Dream Doctor Here are no excruciating condiments, no special acridities, no alkaloids fatal to any stomach other than that of the appointed consumer; so that animal food is not confined to one and the same eater. More Hunting Wasps Another brake is supplied by the waste products of metabolism in the system, the uric acid, carbonic acid, oxalic acid, etc., and the many forms of xanthines, alkaloids, and ptomaines. Nature Cure But the pleasurable effects of tobacco are derived in great part from the volatile alkaloids formed during combustion. The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken The artificial atropine is identical with the natural alkaloid. Scientific American Supplement, No. 415, December 15, 1883 Tea leaves contain from 2 to 4 per cent. of caffeine, or theme, which is an alkaloid, and always found in combination with tannin. The Royal Road to Health The leaves are much more delicate in texture than those of Chinese plants, which hardly reach 4 inches in length, and the former contain a larger percentage of the invaluable alkaloid, Theine. Tea Leaves They do this by overcoming and paralyzing the power of the blood to dissolve and carry in solution uric acid and other acids and alkaloids that should be eliminated from the organism. Nature Cure Can there be special compounds in mushrooms, alkaloids, apparently, which vary according to the botanical genus? The Life of the fly; with which are interspersed some chapters of autobiography An alkaloid has been obtained from it similar to strychnine. A Popular Account of Dr. Livingstone's Expedition to the Zambesi and its tributaries And of the Discovery of Lakes Shirwa and Nyassa, 1858-1864 Thence, they penetrate into the blood and impair it alike by their presence and the products they yield—ptomaines, alkaloids, etc. The Royal Road to Health "The alkaloids," replied Kennedy as we walked slowly along. The Silent Bullet Every piece of animal flesh is saturated with these excrements of the cells in the form of uric acid and many other kinds of acids, alkaloids of putrefaction, xanthines, ptomaines, etc. Nature Cure Who knows whether medical science could not employ them in relieving our ailments, even as it employs quinine, morphia and other alkaloids? The Life of the fly; with which are interspersed some chapters of autobiography "Death from some powerful vegetable alkaloid," I answered,—"some strychnine-like substance which would produce tetanus." The Sign of the Four "It is the alkaloid of aconite, and generally fatal in its results." The Red Seal It is well known that it contains half a dozen alkaloids and resins of curious and little-investigated nature. The Silent Bullet These, together with xanthines, poisonous alkaloids and ptomaines, are formed during the processes of protein and starch digestion and in the breaking down and decay of cells and tissues. Nature Cure He has, as you know, found reactive drugs which betray the presence of an alkaloid, whatever it may be, in the substances submitted to him for analysis. The Mystery of Orcival British manufacturers, on the other hand, held their own in the production of certain kinds of drugs, such as the alkaloids, gaseous anaesthetics, and some inorganic salts of bismuth and mercury. The Riddle of the Rhine; chemical strategy in peace and war But enough for our present excursion; we must hie us back to the modern world, with its alkaloids, serums, and anti-toxins—another day we will, perhaps, wander again down the by-paths of Medicinal Magic. Bygone Beliefs: being a series of excursions in the byways of thought Oh, we've looked for morphine chloroform, ether, all the ordinary poisons, besides some of the little known alkaloids. The Silent Bullet |
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