Natamycin, Pimaricin
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Natamycin (Pimaricin) is an antimyotic food additive used to protect cheese from mould and yeast growth.

The use of natamycin on cheese allows manufacturers to produce cheese that is acceptable to the aesthetic demands of consumers by eliminating the growth of mould and yeasts that occur during aging and storage.Other benefits include reducing the risk of mycotoxin growth and a longer shelf life.

It is also sometimes used medically to treat candidiasis. May cause nausea, vomiting, anorexia, diarrhoea and skin irritation. Typically found in the rinds of cheeses, and some meat products.