What is the Nisin? Lactic acid peptide for lactic acid secretion of Nisin antibiotics, is made up of 34 amino acids. Yeast powder as raw material, under certain conditions by lactic streptococcus fermentation. Fermented liquid after steam sterilization and acidification, concentration, filtration, salting out and spray drying and finished products.
Solubility in water is dependent on the Ph value, Ph 2.5 solubility was 12%, the Ph value of 5.0 to 4% today, insoluble in water under neutral and alkaline conditions. Ph value is 2 heat and Ph value is greater than 5, the heat resistance decreased.
Peptide by using bacteria and streptococcus Lactococcus lactis fermentation production, in production, it from civilized in the natural substrate Lactoccus lactis, such as milk or glucose chemical industry. Used in processed cheese, meat, drinks and so on in production ShiYanChang save leather gram-positive damage through pressing and pathogenic bacteria.
