All foods containing proteins or free amino acids and in a wide range of food products including fish products, meat products, dairy products, wine, beer, vegetables, fruits, nuts, chocolate and significant pharmaceutical agents.
Importance in Food [edit]. Biogenic amines can be found in all foods containing proteins or free amino acids and are found in a wide range of food products including fish products, meat products, dairy products, wine, beer, vegetables, fruits, nuts and chocolate. Biogenic amines 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 amino acids. Amines. Amines are derivatives of ammonia in which one or more hydrogen atoms are replaced by alkyl groups. We indicate the degree of substitution by labeling the amine as either primary (RNH 2), secondary (R 2 NH), or tertiary (R 3 N). The common names of these compounds are derived from the names of the alkyl group A) Primary amines: Primary amines are formed when one of three hydrogen atoms in ammonia is substituted by an alkyl group which means the formula of the primary amine will be RNH2 where R is an alkyl group. Significant primary alkyl amines encompass methylamine (CH3NH2), ethanolamine (2-aminoethanol). Major examples include dimethylamine, (CH3)2 NH and diethylamine. C) Tertiary amines: In a tertiary amine, all of the hydrogen atoms in an ammonia molecule have been replaced by hydrocarbon groups. The naming is analogous to secondary amines. This system names amine functions as substituents on the largest alkyl group. The simple-NH 2 substituent found in 1º-amines is called an amino group. For 2º and 3º-amines a compound prefix (e.g. dimethylamino in the fourth example) includes the names of all but the root alkyl group. The third and fourth compounds in the row are 2º and 3º-amines respectively. A nitrogen bonded to four alkyl groups will necessarily be positively charged, and is called a 4º-ammonium cation. For example, (CH 3) 4 N (+) Br (–) is tetramethylammonium bromide. An aliphatic amine has no aromatic ring attached directly to the nitrogen atom. Aromatic amines have the nitrogen atom connected to an aromatic ring as in the various anilines. The aromatic ring decreases the alkalinity of the amine, depending on its substituents. The aromatic amines, such as aniline, have their lone pair electrons conjugated into the benzene ring, thus their tendency to engage in hydrogen bonding is diminished. Their boiling points are high and their solubility in water is low. 1 Primary amines-Primary amines arise when one of three hydrogen atoms in ammonia is replaced by an alkyl or aromatic. 2  Important primary alkyl amines include methylamine, ethanolamine (2-aminoethanol), and the buffering agent tris, while primary aromatic amines include aniline. The aromatic amines, such as aniline, have their lone pair electrons conjugated into the benzene ring, thus their tendency to engage in hydrogen bonding is diminished. Their boiling points are high and their solubility in water is low. For example, CH3-NH2 in this method is named as methyl amine .The amines are found in different kinds of vital bio-molecules and significant pharmaceutical agents. They are used to make azo-dyes, many drugs and medicines which are based on amino compounds. Major examples include dimethylamine, (CH3)2 NH and diethylamine. C) Tertiary amines: In a tertiary amine, all of the hydrogen atoms in an ammonia molecule have been replaced by hydrocarbon groups. The naming is analogous to secondary amines. B) Secondary amines: In a secondary amine, two of the hydrogen atoms in an ammonia molecule have been replaced by hydrocarbon groups. Major examples include dimethylamine, (CH3)2 NH and diethylamine. C) Tertiary amines: In a tertiary amine, all of the hydrogen atoms in an ammonia molecule have been replaced by hydrocarbon groups. The naming is analogous to secondary amines.
https://en.wikipedia.org/wiki/Biogenic_amine http://chemed.chem.purdue.edu/genchem/topicreview/bp/2organic/amines.html http://www.innovateus.net/science/what-are-amines http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/amine1.htm https://en.wikipedia.org/wiki/Amine https://en.wikipedia.org/wiki/Amine http://www.innovateus.net/science/what-are-amines http://www.innovateus.net/science/what-are-amines
what are amines found in