首页|Diversity of bacteriocins produced by lactic acid bacteria isolated from raw milk.
Diversity of bacteriocins produced by lactic acid bacteria isolated from raw milk.
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NSTL
Bacteriocin-producing lactic acid bacteria were isolated from 298 samples of raw ewe, goat or cow milk. 82 bacteriocin-producers were phenotypically and genotypically identified as Lactococcus lactis subsp. lactis (59 isolates), L. lactis subsp. cremoris (2 isolates), L. lactis subsp. lactis biovar. diacetylactis (6 isolates), Enterococcus faecalis (7 isolates), E. faecium (1 isolate), Lactobacillus paracasei subsp. paracasei (4 isolates), Lb. plantarum (1 isolate) and Leuconostoc spp. (2 isolates). By means of PCR-techniques, nisin was characterized in 39 of the 67 bacteriocin-producing lactococci and lacticin 481 in 23 isolates, some of which presented anti-listerial activity. Enterocin AS-48 was produced by four enterococcal isolates. Four non-identified bacteriocins produced by 16 isolates showed a broad inhibitory spectrum. Nisin-producing lactic acid bacteria were the most abundant, but lacticin 481-producing lactococci and AS-48-producing enterococci were found at relatively high levels.
NSTL
