Bacteriocin-Producing Strain of Lactococcus lactis subsp. diacitilactis S50
- PMID: 16348516
- PMCID: PMC183477
- DOI: 10.1128/aem.57.6.1835-1837.1991
Bacteriocin-Producing Strain of Lactococcus lactis subsp. diacitilactis S50
Abstract
Lactococcus lactis subsp. diacitilactis S50 produces a bacteriocin, designated bacteriocin S50, which has a narrow antibacterial spectrum. It was active only against Lactococcus species, including a nisin producer exhibiting a bactericidal effect. The activity of bacteriocin S50 was sensitive to proteases. It retained antimicrobial activity after being heated to 100 degrees C for up to 60 min and in the pH range 2 to 11.
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