The most important biogenic amines in dairy foods are histamine,
tyramine and cadaverine (from histidine, tyrosine and lysine
decarboxylation, respectively). The occurrence of these amines is
mainly due to microbial groups that participate in the fermentation
process. Therefore, the aims of the study were to investigate
biogenic amines formation by S. thermophilus isolated from
home-made natural yogurt, and in lysine and histidine decarboxylase
broth.