Nisin, E234, CAS no.1414-45-5 is manufactured by fermentation process, used as safe natural food preservative. Nisin is used and applied in meat products, dairy products, canned seafood, drinks, fruit drinks, liquid eggs and egg products, condiments, winemaking, baked goods, convenience food, incense fragrances, cosmetics field, etc.. during production to extend shelf life by suppressing Gram-positive spoilage and pathogenic bacteria. As an experienced Nisin manufacturer and supplier, we has been supplying and exporting Nisin for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Nisin Specification ITEM STANDARD Appearance Light brown to cream white powder Potency (IU/ mg) 1000 Min Loss on drying (%) 3 Max pH (10% solution) 3.1- 3.6 Arsenic 1 mg/kg Lead 1 mg/kg Mercury 1 mg/kg Total heavy metals ( as Pb) 10 mg/kg Sodium chloride (%) 50 Min Total plate count 10 cfu/g Coliform bacteria 30 MPN/ 100g E.coli/ 5g Negative Salmonella/ 10g Negative