: a polypeptide antibiotic that is produced by a bacterium (Lactococcus lactis synonym Streptococcus lactis) and is used as a food preservative (as for processed cheese and canned fruits and vegetables)
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“Nisin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/nisin. Accessed 21 Nov. 2024.
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