Proteases CAS 9014-01-1 are a group of enzymes that hydrolyze protein peptide chains. According to the way they degrade peptides, they are divided into two categories: endopeptidases and terminal peptidases. The former can cut off high molecular weight peptide chains from the middle, forming smaller molecular weight prions and peptones; The latter can be further divided into carboxypeptidases and aminopeptidases, which hydrolyze the peptide chain one by one from the free carboxyl end or free amino end of the peptide to generate amino acids.

Chinese name: Protease

Foreign name: Protease

Nickname: Bacillus subtilis lysozyme; Protease; Sutilanase; Derived from Bacillus licheniformis

CAS login number: 9014-01-1

EINECS login number: 232-752-2

Extensive use

Protease is the most important industrial enzyme preparation that catalyzes the hydrolysis of proteins and peptides, and is widely present in animal organs, plant stems and leaves, fruits, and microorganisms. Proteases are widely used in cheese production, meat tenderization, and plant protein modification. In addition, pepsin, chymotrypsin, carboxypeptidase, and aminopeptidase are all proteases in the human digestive tract. Under their action, the protein consumed by the human body is hydrolyzed into small molecule peptides and amino acids.

The proteases currently used in the baking industry include fungal protease, bacterial protease, and plant protease. The application of proteases in bread production can alter the properties of gluten, and their forms of action are different from the effects of force during bread preparation and the chemical reactions of reducing agents. The function of proteases is not to destroy disulfide bonds, but to break and form a three-dimensional network structure of gluten. The role of proteases in bread production is mainly manifested in the dough fermentation process. Due to the action of proteases, the protein in flour is degraded into peptides and amino acids to provide yeast with carbon source and promote fermentation

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