Animal collagen polypeptide extraction method

Abstract

The invention relates to a process method for preparing a collagen polypeptide through a high-value deep processing technology by using collagen powder obtained through extraction of chondroitin sulfate from animal cartilage as a raw material. The process method comprises: preparing an aqueous solution from animal cartilage collagen powder, clarifying, stirring in an organic solvent, carrying outstanding extraction to remove lipid components and odor, eluting the salt components of the lower layer solution by using a gel chromatographic column filtration method, collecting the eluent, heatingthe eluent to a temperature of 40-55 DEG C, carrying out directed digestion on the collagen powder under a stirring condition by selecting mixing enzyme, carrying out stirring decolorization with active carbon under a temperature control condition, filtering, concentrating, and drying to obtain hydrolyzed collagen polypeptide. According to the present invention, the method has characteristics ofsimple process, easily available raw materials, high production efficiency, excellent product quality, pure product odor, low cost and good chemical performance of the product, and is suitable for large industrial production.

Description

Technical field: [0001] The invention belongs to the technical field of food chemical industry, and relates to a process for preparing collagen polypeptides through high-value deep processing technology using collagen powder obtained after extracting chondroitin sulfate from animal cartilage as a raw material, in particular to a method for extracting animal collagen polypeptides. Background technique: [0002] At present, the technology of deepening the preparation of high-quality collagen peptides with collagen powder as raw material is arousing widespread interest. Collagen is the most abundant and widely distributed protein with immunological properties in animals. It widely exists in animal skin, bones, teeth, tendons, ligaments and blood vessels, accounting for 30% of the total protein in mammals. It is widely used in the pharmaceutical industry, biomedical raw materials and food industry, imaging industry, etc. The earliest collagen products produced using leather scr...

AI Technical Summary

Problems solved by technology

Chinese patent CN1896262A discloses "technology for producing animal high-calcium powder, chondroitin, and collagen by compound enzyme method". There are the following disadvantages in protein powder or further made into collagen polypeptide: (1) has a strong fishy smell; (2) the color is dark and dark yellow; (3) the salt content is as high as more than 10%; (4) due to the molecular weight distribution is not Uniform, affects digestibility and often has poor organoleptic properties