Special compound preparation for chicken liver degradation, and application thereof

Abstract

The invention relates to a special compound enzyme preparation for chicken liver degradation, and application thereof. The special compound preparation for chicken liver degradation comprises, by weight, 9-11 parts of alkaline protease and 3-4 parts of flavourzyme; or 12-18 parts of alkaline protease and 4-6 parts of aminopeptidase. The compound enzyme preparation prepared by compounding the alkaline protease with the flavourzyme or the alkaline protease with the aminopeptidase according to a specific ratio is disclosed for the first time, and the compound enzyme preparation does not cause thecolor darkening of chicken livers in the degrading process of the chicken livers, so the look and the quality of degraded products are improved, and the application field of the products is enlarged.

Description

technical field [0001] The invention relates to a special composite enzyme preparation for chicken liver degradation and its application, belonging to the technical field of composite enzyme preparations. Background technique [0002] Hydrolyzed protein is a high-quality protein resource, and the protein hydrolyzate is mainly amino acids and polypeptides, which have high nutritional value. The use of cheap animal waste to prepare protein hydrolyzates has also attracted more and more attention from researchers. [0003] In 2017, the global chicken production was nearly 90 million tons, and China's chicken production exceeded 12 million tons, accounting for 14% of the global chicken production. Chicken liver accounts for 2.0% to 2.5% of the weight of each chicken. Therefore, the annual output of chicken liver in my country reaches hundreds of thousands of tons. The protein content in the chicken liver accounts for 70% to 80% of the dry weight of the chicken liver, and is ric...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent document CN101717807A (application number 200910309871.0) discloses a process for preparing chicken liver hydrolyzed protein by enzymatic method, which solves the problem of low utilization rate of chicken liver due to heavy fishy smell and high cholesterol content. The present invention uses chicken liver as As the main raw material, 5 kinds of proteases were selected, and with the degree of hydrolysis as the index, single factor experiments were used to investigate the effects of raw material pretreatment method, enzymolysis temperature, pH, enzyme dosage (E / S), substrate concentration and enzymolysis time on each enzyme. The effect of hydrolysis ability, compare the enzymatic hydrolysis effect of each enzyme under the best conditions

[0006] The above-mentioned literature still does not solve the problem that the color of chicken liver becomes darker after enzymatic hydrolysis

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