A<unk>  is a<unk>  substance with one or more<unk>  groups. They are basic nitrogenous compounds formed mainly by decarboxylation of<unk>  acids or by<unk> tion and transamination of aldehydes and ketones.<unk> s are organic bases with low molecular weight and are synthesized by microbial, vegetable and animal metabolisms. In food and beverages they are formed by the enzymes of raw material or are generated by microbial decarboxylation of<unk>  acids.
Biogenic amine
Loline alkaloid
Polycyclic aromatic hydrocarbon
Naphthalene
Haloalkane
Furan
Gluten
Choline