pH Dependence of Nisin
Nisin exhibits optimal stability under acidic conditions (pH 2.0–6.0). In this range, its phosphate ester bond and peptide chain structure remain intact, retaining over 90% of antimicrobial activity after storage for 6–12 months at room temperature. However, under neutral or alkaline conditions (pH > 7.0), Nisin is prone to hydrolysis of the peptide bond and deamidation of amino acid residues, leading to rapid activity loss. For example, at pH 8.0, its activity decreases by 50% within 24 hours at 25℃, and almost completely inactivates at pH 10.0. This characteristic makes it particularly suitable for acidic foods such as dairy products, fruit juices, and pickles, while requiring pH adjustment (e.g., adding lactic acid) or modification (e.g., microencapsulation) for neutral/alkaline foods like meat products and soy sauce.
Other supplier products
|
|
Sulfachloropyrazine Sodium Soluble Powder 30% 500g |
Trade Name: Shengxue QiulingCommon Name: Sulfachloropyrazine Sodium Soluble PowderMain Ingredients: Sulfachloropyrazine SodiumDescription: This pro... |
|
|
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... |
|
|
Nisin Wholesale Price 500g |
Nisin can be normally metabolized by the human bodyThe essence of Nisin is a polypeptide composed of 34 amino acids. After entering the human body,... |
|
|
Chlortetracycline Premix |
Chlortetracycline Premix is a special feed additive that combines the advantages of chlortetracycline, an antibiotic, with premixes designed to pro... |
|
|
Nisin |
Nisin is a natural antimicrobial peptide with specific properties and characteristics that make it suitable for various applications, particularly ... |
供应产品
Same products
