Shield Nisin Natural Food Preservative 1 Kg - Physical Form: Powder

"Keeping Food Fresh, the Natural Way Nisin."

Nisin is a natural antimicrobial peptide that is commonly used in food preservation, including dairy products. Its produced by certain strains of Lactococcus lactis and acts as a bacteriocin, which means it inhibits the growth of harmful bacteria. Specifically, nisin is effective against Gram-positive bacteria, including Listeria monocytogenes, Staphylococcus aureus, and some strains of Clostridium and Bacillus. This makes it particularly valuable in dairy production, where spoilage bacteria or pathogens can be a concern.

Heres how nisin is typically used in dairy products:

1. Preservation: Nisin extends the shelf life of dairy products by inhibiting the growth of spoilage and pathogenic bacteria. Its often used in products like cheese, milk, yogurt, and other fermented dairy items.

2. Safety: Nisin is generally recognized as safe (GRAS) by regulatory bodies such as the U.S. Food and Drug Administration (FDA), when used within specified limits. This makes it a popular choice in food preservation.

3. Mechanism: Nisin works by disrupting the bacterial cell membrane, which inhibits the bacterias ability to grow and reproduce. It can also prevent the formation of bacterial spores, which is especially important for products like cheese that need to have a long shelf life.

4. Application: In dairy products, nisin can be added directly to the product or incorporated into coatings for cheese or other dairy items. Its usually used in combination with other preservation techniques, such as pasteurization or refrigeration, to ensure optimal safety and shelf life.