Production of biogenic amines by enterococci.
作者： K. Kučerová , H. Svobodová , Š. Tůma , I. Ondráčková , M. Plocková
DOI: 10.17221/673-CJFS
关键词:
摘要: Enterococci were presented in all tested samples of raw cow milk (six samples) at the level 10 3 -10 5 CFU/ml, fresh cheeses (five 2 6 CFU/g and semi-hard CFU/g. All 33 isolated Enterococcus strains screened for decarboxylase activity by usage differential growth medium 20 them possessed tyrosine activity. A collection eight with strongest identified species specific PCR as E. faecium (Z3, Z4, Br4 6/4D strains) faecalis (Ž4, 3/3C 4/1A strains). spp. Z1 strain was not used methods, but genus confirmed method. Their tyrosin TLC detection tdc gene. Z1, Z3 Z4 showed also histidine on histidine, this evaluated a false positive reaction medium.
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