单词 | carotin |
例句 | Xanthophyll differs markedly from carotin in its solubilities, being insoluble in petroleum ether and only sparingly soluble in carbon disulfide. The Chemistry of Plant Life As an example of a lipochrome which has been isolated, crystallized and purified, we may mention carotin, which has recently been found in green leaves. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" This observation suggested the chemical relation between the vitamine and carotin. The Vitamine Manual Yellow tomatoes have only carotin as their skin-pigment, while lycopersicin is usually present in the flesh of the ripe fruits of all varieties and in the skin of red ones. The Chemistry of Plant Life Its formula indicates that it is an oxidized carotin. The Chemistry of Plant Life It may be fairly easily reduced to carotin. The Chemistry of Plant Life This group includes the two brilliant yellow pigments, carotin and xanthophyll, and the reddish brown fucoxanthin and the brilliant red lycopersicin, which are similar in their chemical composition. The Chemistry of Plant Life To separate the carotin from xanthophyll place the ether solution in a small open dish and evaporate to a small volume. The Chemistry of Plant Life It is unlike carotin and xanthophyll in that it has basic properties, forming salts with acids, which are blue in color. The Chemistry of Plant Life Associated with it are other pigments, which have been variously reported as carotin, phycoxanthin, etc. The Chemistry of Plant Life It is, however, brilliantly red in color, and crystallizes in a different form and has a different adsorption spectrum from carotin. The Chemistry of Plant Life |
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