A polycyclic peptide produced by fermentation with the bacterium Lactococcus lactis; used as a preservative in processed cheese etc.(noun)
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Use "nisin" in a sentence
"The problem with commercial nisin is that it's cut with milk."
"Certain lactic bacteria (notably, Streptococcus lactis) produce the antibiotic nisin, active against gram-positive organisms."
"Streptococcus lactis produces the polypeptide antibiotic nisin, active against gram-positive organisms, including S. cremoris, which in turn produces the antibiotic diplococcin, active against gram-positive organisms such as S. lactis."