Biogenic amines (BA) are nitrogenous compounds of low molecular weight and are essential at low concentrations for natural metabolic and physiological functions in animals, plants, and microorganisms. Histamine, putrescine, cadaverine, tyramine, tryptamine, 2-phenylethylamine, spermine and spermidine are the most important BA in foods in which they are mainly produced by microbial decarboxylati...

S���� D., P������ P., K������ T., K������ B., K���� V. (2003): Liquid chromatographic determination of biogenic amines in a meat product during fermentation and long-term storage. Czech J. Food Sci., 21: 167–175. Liquid chromatographic procedures employing two derivatisation reagents, dansylchloride and o-phthaldialdehyde (OPA), were compared and applied for the determination of biogenic amines...

Norepinephrine and histamine markedly augment accumulations of cyclic AMP elicited by 2-chloroadenosine in a guinea pig cerebral cortical vesicular preparation. In addition, these biogenic amines stimulate phosphatidylinositol turnover. Phosphatidylinositol turnover is associated with mobilization of internal calcium and with stimulation of protein kinase C. Phorbol-12-myristate-13-acetate (PMA...

Microwave irradiation has become an acceptable technique for assessing small quantities of neurochemical substances in the brain. These substances are acetylcholine, cyclic nucleotides, biogenic amines, enkephaline and r-aminobutylic acid (1-4). Rapid inactivation of brain enzymes by microwave irradiation prevents postmortem changes of tissue substances. Although it is known that brain biogenic...

Insect antenna is a multisensory organ, each modality of which can be modulated by biogenic amines. Octopamine (OA) and its metabolic precursor tyramine (TA) affect activity of antennal olfactory receptor neurons. There is some evidence that dopamine (DA) modulates gustatory neurons. Serotonin can serve as a neurotransmitter in some afferent mechanosensory neurons and both as a neurotransmitter...

We here report a 3.02-Mbp annotated draft assembly of the Lactobacillus casei 5b genome. The sequence of this biogenic amine-degrading dairy isolate may help identify the mechanisms involved in the catabolism of biogenic amines and perhaps shed light on ways to reduce the presence of these toxic compounds in food.

Biogenic amines were determined by HPLC in four beer types. In spontaneously fermented beers (SF beers), the amounts of vasoactive amines reached high levels, namely a mean value (1) above 20 mg/l for tyramine and (2) close to 10 mg/l for histamine. Considering the bacterial origin of these amines, we established a calculation formula for a Beer biogenic amine index (Beer BAI), reflecting the m...