Method for preparing protein peptide by carrying out enzymolysis on marine low-value small fishes by squid visceral enzyme

Abstract

The invention relates to a method for preparing protein peptide by carrying out enzymolysis on marine low-value small fishes by squid visceral enzyme. The method takes the marine low-value small fishes as a raw material, and comprises the steps of unfreezing, carrying out enzymolysis on the substrate small fishes by the squid visceral enzyme after homogenate treatment, and controlling the solid-to-liquid ratio, the temperature, the pH and the enzymolysis time in the enzymolysis process; after that, carrying out enzyme deactivation and concentration to obtain protein peptide paste, or carrying out spray drying treatment on the protein peptide paste to obtain protein peptide powder. The method has the advantages of being simple in technology, low in production cost, high in yield of finished products, suitable for industrial product, etc. The method not only reduces the dosage of industrial protease, but also enables the protein resource to be comprehensively utilized, avoids the environmental pollution and realizes the industrial application of the squid visceral enzyme.

Description

technical field

[0001] The present invention relates to a method for preparing protein peptides, in particular to a method for preparing protein peptides by using squid visceral enzymes to enzymatically hydrolyze small marine low-value miscellaneous fish. Background technique

[0002] my country is a large fishery country. During the fishing and processing process, a large number of low-value fish and aquatic product processing waste, such as internal organs, skins, eyes, and eye sockets, are discarded, causing environmental pollution. This is not only a huge waste of fishery resources, but also has the hidden danger of environmental pollution. With the improvement of people's living standards and demands, the edible value of low-value small trash fish is very low, and some of them are processed into fish meal, and protein resources are not fully utilized. Therefore, how to effectively process and utilize aquatic product processing waste and carry out high-value comprehensi...