In this case, the amino acid cysteine (Cys) – found in milk products – was combined with the polyphenols CA and CGA – found in coffee – to make the adducts CA–Cys and CGA–Cys.

在这种情况下，奶制品中的氨基酸半胱氨酸（Cys）与咖啡中的CA和CGA结合，形成加合物 CA–Cys 和 CGA–Cys。