Preparation method and application of intestinal membrane peptide

Abstract

The invention discloses a preparation method and application of an intestinal membrane peptide. According to the method, the problems of great production odor, high salinity, high water content and single function of intestinal membrane stoste, namely intestinal membrane liquid I are solved. By adopting the steps of filtering the intestinal membrane stoste, adjusting a pH value, deodorizing, desalting and dehydrating a biological membrane, performing biological enzymolysis, drying, packaging products and the like, the content of small peptide in a produced intestinal membrane peptide product is greater than 50 percent (the molecular weight is smaller than or equal to 1000Da), and the product is easily digested and absorbed and can be used for promoting digestion and absorption of amino acid and mineral substances. The intestinal membrane peptide disclosed by the invention can be used for an animal feed additive and a functional protein raw material.

Description

technical field [0001] The invention is aimed at the reuse of intestinal membrane fluid as animal by-product processing waste resources in the agricultural field, and in particular relates to a preparation method and application of intestinal membrane peptide. Background technique [0002] my country is rich in pig resources and is one of the main exporters of heparin sodium raw materials and natural casings. At present, my country mainly uses pig small intestinal mucosa as raw material for heparin sodium extraction. Heparin binds to proteins in the form of covalent bonds to form complexes in tissues. Traditionally, heparin is dissociated mainly through salt hydrolysis and enzymatic hydrolysis. The wastewater after extracting heparin is a kind of high-salt, high-nitrogen high-concentration organic wastewater. In addition to the salt solution method, the intestinal membrane protein of the filter residue can be directly obtained, and the intestinal membrane wastewater obtained...

AI Technical Summary

Problems solved by technology

There are problems with this processing method. First, the intestinal membrane waste liquid produces a particularly strong fishy smell during the processing process, especially the drying process, which has a great impact on the lives of residents around the factory area. The scale of membrane processing has stagnated, so the waste intestinal membrane has not been widely and effectively recycled, processed and utilized; second, the waste intestinal membrane often contains a relatively high concentration of salt. After testing, the salt content in the dry matter of the intestinal membrane waste As high as 45%, how to reduce the salinity, increase the content of active ingredients such as protein and improve the palatability, etc. have not been well resolved; the third is that the processing cost is relatively high, most of the intestinal membrane wastewater is water and salt, and the dry matter is only About 4.5%, the cost of drying low-concentration intestinal membrane fluid remains high

[0004] Traditional methods cannot solve the shortcomings of intestinal membrane processing, such as fishy smell, high salt content, and high drying costs. Moreover, the scale of pig breeding in my country is still increasing year by year, and the processing volume of heparin sodium and natural casings is also increasing year by year. Waste liquid will also continue to increase, so there is an urgent need in this field to provide a method for deodorizing intestinal membrane stock solution, especially a process that can reduce salt and improve product function

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