Nisin 500g

Key Factors Influencing the Antibacterial Mechanism
pH value: An acidic environment (pH 3-5) can enhance the antibacterial activity of Nisin because it is more likely to combine with cell membranes and form pores under acidic conditions. The activity significantly decreases under neutral or alkaline conditions (for example, when pH > 7, the solubility and stability of Nisin decrease).
Temperature: High temperatures (such as sterilization at 121℃) can damage the structure of Nisin, but its antibacterial mechanism remains unaffected at low temperatures (< 60℃), making it suitable for pasteurization or refrigerated food.
Metal ions: cations such as Ca²⁺ and Mg²⁺ can compete with Nisin for cell membrane binding sites, weakening its activity; Chelating agents such as EDTA can remove metal ions and enhance the effect on Gram-negative bacteria.
Summary
The antibacterial mechanism of Nisin is characterized by "multiple targets and high specificity" : it efficiently kills Gram-positive bacteria through three pathways: destroying cell membranes, inhibiting cell wall synthesis and inducing autolysis, without affecting human cells. This mechanism not only endows it with a powerful antibacterial effect, but also lays the scientific foundation for it to be used as a safe food preservative. In food processing, by taking advantage of the mechanism characteristics of Nisin (such as its combination with acidic environments or chelating agents), its application scope can be further expanded and the preservative efficiency can be enhanced.

Other supplier products

	Nisin as a GRAS substance	As a GRAS (Generally Recognized as Safe) substance, Nisin is non-toxic, non-residue, and metabolized into amino acids in the human body. Its use a...
	Natamycin Bulk supply	The application advantages of natamycin in the food industryNatural and safe: Natamycin is produced by the fermentation of microorganisms such as S...
	Food additive	Nisin remains active over a broad pH range, making it suitable for application in acidic as well as neutral or mildly alkaline foods.This pH tolera...
	Natamycin Market quotation	Natamycin differs from other food preservatives in sensory properties: Natamycin: usually has little impact on the sensory characteristics of food ...
	Chlortetracycline Premix	Chlortetracycline Premix has widespread applications in livestock and poultry farming, primarily reflected in the following aspects: 1. Promotes An...

供应产品

Same products

	Epimedium Extract	卖方: Fruit Powder,Vegetable Powder	Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ...
	Pumpkin Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Pumpkin PowderLatin Name: Cucurbita pepo L.Used Part: FruitAppearance: yellow fine ...
	Broccoli Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Broccoli powder Latin Name: Brassica oleracea L.var.italic Planch. Used Part: Who...
	Pomegranate Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Pomegranate PowderLatin Name: Punica granatum linn.Used Part: Fruit juiceAppearance...
	Orange Powder	卖方: Fruit Powder,Vegetable Powder	Product Name: Orange PowderLatin Name: Citrus sinensisUsed Part: Fruit juiceAppearance: Light yel...