Nisin 1kg

• 

Nisin is a natural antimicrobial peptide produced by certain strains of lactic acid bacteria, particularly Lactococcus lactis. It is widely used as a food preservative due to its ability to inhibit the growth of various bacteria, including some foodborne pathogens. Here are some physical and chemical properties of Nisin:
1. Physical Properties:
Appearance: Nisin is a white to slightly yellowish powder.
Solubility: It is soluble in water.
Odor: Generally odorless.
Molecular Weight: The molecular weight of Nisin is approximately 3350 Da.
2. Chemical Properties:
Chemical Structure: Nisin is a polycyclic peptide with 34 amino acid residues, including unusual amino acids such as lanthionine and methyllanthionine. It is classified as a lantibiotic due to the presence of these thioether linkages.
Stability: Nisin is stable under normal storage conditions and is relatively resistant to heat, acids, and proteolytic enzymes. However, it can be inactivated by certain proteolytic enzymes and some metal ions.
pH Sensitivity: The activity of nisin is pH-dependent, and it is more effective in acidic conditions.
Temperature Sensitivity: While relatively stable at elevated temperatures, prolonged exposure to high temperatures can result in the loss of its antimicrobial activity.
Metal Sensitivity: Nisin can be affected by the presence of certain metal ions, and its activity may be reduced in the presence of divalent cations such as calcium and magnesium.
3. Antimicrobial Activity:
Target Microorganisms: Nisin primarily targets Gram-positive bacteria, including important foodborne pathogens such as Listeria monocytogenes and Staphylococcus aureus.
Mode of Action: Nisin disrupts bacterial cell membranes by forming pores, leading to leakage of cellular contents and eventual cell death.
4. Applications:
Food Preservation: Nisin is commonly used as a natural preservative in various food products, including dairy, meat, and canned goods.
Pharmaceuticals: It has potential applications in the pharmaceutical industry for its antimicrobial properties.
Biotechnology: Nisin is also employed in biotechnological processes.
Regulations regarding the use of Nisin may vary in different countries, and acceptable usage levels should be adhered to for food safety.

Other supplier products

	Sulfachloropyrazine Sodium Soluble Powder 30% 500g	Trade Name: Shengxue QiulingCommon Name: Sulfachloropyrazine Sodium Soluble PowderMain Ingredients: Sulfachloropyrazine SodiumDescription: This pro...
	Nisin Manufacturer	The specific packaging methods used by Chinese manufacturers for nisin can vary depending on the manufacturer, the form of nisin (e.g., powder, liq...
	Natamycin Purchase price	Natamycin has been allowed to be added to foods in several countries around the world, such as:American countries: The United States officially app...
	Nisin Raw Material Wholesale	Nisin is an antimicrobial peptide produced by Lactococcus lactis that specifically binds to the membrane proteins of Gram-positive bacteria, interf...
	Chlortetracycline Premix Manufacturer	Chlortetracycline Premix is a veterinary medicine used to prevent and treat bacterial infections in poultry and livestock. It is a broad-spectrum a...

Same products

	L-leucine Manufacturer 61-90-5	Seller: Shanghai Yifu Food Ingredients Co., Ltd	L - leucine has several notable performance characteristics related to its physical and chemical ...
	L-leucine Partners, long-term cooperation	Seller: Shanghai Yifu Food Ingredients Co., Ltd	L-leucine has a wide range of applications in the fields of medicine, food, and cosmetics, among ...
	L-leucine Supply price	Seller: Shanghai Yifu Food Ingredients Co., Ltd	L-leucine is an essential amino acid, which means it cannot be synthesized by the human body and ...
	High quality L-leucine	Seller: Shanghai Yifu Food Ingredients Co., Ltd	Functions in the Human BodyProtein Synthesis: It is a crucial component for building proteins. It...
	L-leucine Supplier	Seller: Shanghai Yifu Food Ingredients Co., Ltd	Basic InformationChemical Formula: C6H13NO2Molecular Weight: 131.17 g/molStructure: It has a bran...