Method for preparing immune polysaccharide and yeast extract by utilizing beer yeast dregs for feeding

Abstract

The invention provides a method of making mangel immune polysaccharides and yeasts extract, belonging to the technique field of preparing biological products, such as polysaccharides, by yeasts. Said method includes the following steps: brewers' yeast residue bitter-removing, foreign substance-removing, brewers' yeast autolysis, brewers' yeast complex enzymolysis and deactivation, segregation of polysaccharides and protein hydrolysate liquid, blink spray drying of mangel immune polysaccharides and yeasts extract, etc; it is characterized on: high yield, good quality, low cost, and could achieve the aim of preparing mangel immune polysaccharides and yeasts extract at the same time from identical yeast material, enhance the availability ratio of yeasts, avoid pollution to the environment in traditional method as a result of simply preparing one certain product and discharging other assistant liquid.

Description

technical field

[0001] The invention relates to the technical field of using yeast to prepare immune polysaccharides or yeast extracts, in particular to a comprehensive method for simultaneously producing feed immune polysaccharides and by-product yeast extracts using brewer's yeast dregs. Background technique

[0002] "Immune Polysaccharide for Feed" is a special high-efficiency immune preparation for aquatic products produced by using active yeast as the main raw material, using biotechnology, and undergoing a specific enzymatic purification and refining process. It can also be called yeast broken cell. For β-glucan. The sugar mainly exists in the cell wall of yeast, with a content as high as 29%. It can directly activate the phagocytic activity of blood cells and macrophages of aquatic animals, effectively enhance the defense function of the immune system of aquatic animals, and increase the survival rate of breeding by 20%-30%. Increase the weigh...