food preservative nisin

详情

What is nisin?
Nisin is a fermented antimicrobial agent used as a preservative.

How does nisin work?
It is used in processed cheese, meats, beverages, etc. during production to extend shelf life by suppressing Gram-positive spoilage and pathogenic bacteria.While most bacteriocins generally inhibit only closely related species, Nisin is a rare example of a "broad-spectrum" bacteriocin effective against many Gram-positive organisms, including lactic acid bacteria (commonly associated with spoilage), Listeria monocytogenes (a known pathogen), Staphylococcus aureus, Bacillus cereus, Clostridium botulinum, etc. It is also particularly effective against spores. Gram-negative bacteria are protected by their outer membrane but may become susceptible to nisin action after a heat shock or when this is coupled with the chelator EDTA.
Nisin is soluble in water and can be effective at levels nearing the parts per billion range. In foods, it is common to use Nisin at levels ranging from ~***5ppm, depending on the food type and regulatory approval.

Packing:
**0g/bottle, *0bottle/carton;
***0g/bottle,*0bottle/carton;
*0Kg/drum

Storage:
Kept in cool and dry place, in sealed container, avoid direct sunlight; ***5 °C is recommended.

Shelf Life:
*4 months

Why choose us?
1. we are one of the largest and most powerful nisin manufacturer in China.
2. the products are manufactured under quality management system as per ISO & GMP standards
3. we guarantee reliable and stable quality and supplies
4. we provide excellent after-sales service
5. various package specification for your choose.