Preparation of functional feed protein DPS

Abstract

The invention discloses a method for preparing functionality feed protein intestinal membrane albumen powder, which solves the problems that simultaneous hydrolyzing of multienzyme can affect the hydrolyzing degree and the acquiring rate of the protein peptide, more particularly, the lower acquiring rate of small peptide in the existing intestinal membrane albumen powder preparing technique. The technical scheme includes (1) treating before materials; (2) adding protease to hydrolyze; (3) adding a carrier; (4) preparing through sponging drying; wherein, in the step of hydrolyze the protease, hydrolyzing is carried through on any two of neutral protease, pawpaw protease and alkali protease by adopting a multienzyme grading hydrolyzing method. The functionality feed protein intestinal membrane albumen powder prepared by the method has the obvious advantages in the aspects of the acquiring rate of the protein peptide and the acquiring rate of the small peptide. The invention mixed to feed with other feeds can remarkably improve the performance trait of immature animals.

Description

technical field [0001] The invention relates to an animal protein feed raw material in the technical field of animal husbandry and feed, in particular to a preparation method of functional feed protein intestinal membrane protein powder. Background technique [0002] Dried Porcine Solubles (DPS for short) is a new type of functional nutritional animal protein raw material, derived from pig small intestine and intestinal mucosa, rich in protein, amino acid, oligopeptide, calcium, phosphorus, cellulose and other The functionality of some macro and trace elements, especially DPS, is reflected in its main component-peptide protein. The small peptides (2-6 peptides) contained in the peptide protein have high-efficiency absorption characteristics and special functional properties, which improve animal health. The utilization rate of protein by the body enhances the anti-stress ability of the animal body, so as to achieve the purpose of improving the production performance of the a...

AI Technical Summary

Problems solved by technology

In the protease hydrolysis step, there are two commonly used methods, one is to use a single enzyme for hydrolysis, because protease has a high degree of specificity in the action of peptide bonds, when using a single enzyme hydrolysis, only a few fixed amino acid sites hydrolysis, so that the hydrolysis efficiency is not high; the other is the method of simultaneous enzymolysis with multiple enzymes in different proportions, the method of simultaneous enzymolysis with multiple enzymes is better than the hydrolysis rate of single-enzyme hydrolysis, and can save hydrolysis time, but Protease itself is also a protein. Adding a variety of different proteases at the same time will cause a variety of proteases to act as substrates and hydrolyze each other, reducing the activity of the enzymes, which in turn will affect the hydrolysis efficiency. While increasing the cost, the hydrolysis rate will also decrease. not significantly improved

For example, the intestinal membrane protein powder developed by Xinduofu Feed Company in the United States by enzymatic hydrolysis has a peptide protein yield of 33.40%, small peptides account for 15.45%, and the import price is expensive