Detection and relative quantification of amine oxidase gene () in : application of real-time quantitative PCR.

Degradation of undesirable biogenic amines (BAs) in foodstuffs by microorganisms is considered one of the most effective ways of eliminating their toxicity. In this study, we design two sets of primers for the detection and quantification of the amine oxidase gene () and endogenous (housekeeping) gene () in Moreover, these sets can be used for relative quantification of by real-time PCR (qPCR). We also tested the degradation of BAs by three bacterial strains ( strains: IB1a, CCM 2216, CCM 2267) in a mineral medium over a two-day period. Their degradation abilities were verified by high performance liquid chromatography with UV detection (HPLC/UV). According to the results, two strains significantly ( < 0.05) reduced histamine, tyramine, putrescine, and cadaverine. Moreover, our results indicate that the degradation ability of strains could be limited by sporulation because the gene encoding amine oxidase is no longer expressed in the spores.