Food production Nisin is used in processed cheese, meats, beverages, etc. during production to extend shelf life by suppressing Gram-positive spoilage and pathogenic bacteria.In foods, it is common to use nisin at levels ranging from ~1-25 ppm, depending on the food type and regulatory approval. As a food additive, nisin has an E number of E234.
Other Due to its naturally selective spectrum of activity, it is also employed as a selective agent in microbiological media for the isolation of gram-negative bacteria, yeast, and moulds.
Nisin has also been used in food packaging applications and can serve as a preservative by controlled release onto the food surface from the polymer packaging.
| 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 |