Preparation method of soybean protein peptide

Abstract

The invention discloses a preparation method of a soybean protein peptide. The preparation method comprises the following steps of firstly, selecting a raw material powdery soybean protein isolate, and then sending the selected powdery soybean protein isolate into water to be dissolved; pretreating a dissolved soybean protein isolate solution, and then adjusting the pH of the soybean protein isolate solution; sending the pH-adjusted soybean protein isolate solution into a container for enzymolysis. By means of the preparation method of the soybean protein peptide, firstly, the solution is subjected to high-pressure and ultrasonic treatment, the structure of the soybean protein is changed, the better and more comprehensive contact between an enzyme and a substrate is promoted, the reactionprocess is accelerated, the time for extracting the soybean protein peptide is shortened, the antioxidant effect of the soybean protein peptide is improved, the temperatures of various positions of the solution during enzyme deactivation are equal, the energy loss is small, the energy is saved, the loss of nutrients can be reduced at last, the storage time of the soybean protein peptide is prolonged, and the better use prospect is brought.

Description

technical field [0001] The invention relates to the field of soybean protein peptide preparation, in particular to a preparation method of soybean protein peptide. Background technique [0002] Soybean protein peptide is a pure natural nutrient extracted from soybeans, and it is also an important part of human cells. It plays an extremely important role in life activities. Protecting the liver, preventing arteriosclerosis, enhancing human physical fitness and muscle strength, enhancing human immunity and diabetes have significant health care effects, so people have developed many preparation methods for soybean protein peptides. The requirement of soybean protein peptide is getting higher and higher, resulting in that the existing preparation method of soybean protein peptide cannot meet people's requirements. [0003] The existing soybean protein peptide preparation method has certain disadvantages in use. First, the extraction speed of the existing soybean protein peptide...

AI Technical Summary

Problems solved by technology

[0002] Soybean protein peptide is a pure natural nutrient extracted from soybeans, and it is also an important part of human cells. It plays an extremely important role in life activities. Protecting the liver, preventing arteriosclerosis, enhancing human physical fitness and muscle strength, enhancing human immunity and diabetes have significant health care effects, so people have developed many preparation methods for soybean protein peptides. The requirements for soybean protein peptides are getting higher and higher, resulting in the existing preparation methods of soybean protein peptides that cannot meet people's requirements

[0003] The existing soybean protein peptide preparation method has certain disadvantages in use. First, the extraction speed of the existing soybean protein peptide is relatively slow and requires a lot of time. Moreover, the antioxidant activity of the soybean protein peptide after extraction is not high, and storage The time is not long. Secondly, the existing soybean protein peptides are usually spray-dried. The cost of spray drying is relatively low but seriously affects the activity of protein peptides and reduces the effect of soybean protein peptides. Therefore, it does not meet people’s requirements. For this reason , we propose a preparation method of soybean protein peptide

Images