Natamicyn
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What it is
Nisin is a polypeptide produced by the bacterium Lactococcus lactis. It is a natural antimicrobial peptide that works by disrupting the cell membranes of certain bacteria. Nisin is produced through fermentation and then purified for use as a food ingredient.
Why it's used
Nisin is used as a preservative to prevent the growth of spoilage bacteria and some yeasts and molds. It is particularly effective against Gram-positive bacteria. It is often found in dairy products like cheese, as well as in processed meats, canned goods, and baked goods.
Health notes
Nisin is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) for use as an antimicrobial agent in various foods. International bodies like the Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have also evaluated nisin and found it safe for its intended uses. Studies indicate that nisin is broken down by enzymes in the digestive system and does not pose health risks at typical consumption levels.
Allergen info
Nisin is not derived from any of the nine FDA major allergens and does not contain gluten. It is considered safe for individuals with common food allergies.