Preparation method for glutathione-enriched nucleic acid yeast powder

Abstract

The invention relates to a preparation method for nucleic acid yeast powder. The yeast powder is rich in glutathione and is obtained through the steps that mother liquor obtained after glutathione is extracted is pretreated and then mixed with fresh yeast, and enzymolysis and drying are performed. The preparation method of the yeast autolysis powder comprises the following steps that 1, the mother liquor obtained after glutathione is extracted is pretreated; 2, the mother liquor is settled; 3, primary enzymolysis is performed; 4, secondary enzymolysis is performed; 5, after secondary enzymolysis is finished, the glutathione-enriched nucleic acid yeast autolysis powder is obtained through spray drying. The preparation method has the advantages that the mother liquor obtained after glutathione is extracted is recycled in a reasonable mode, the waste material is changed into things of value, and waste of glutathione and the amino acid polypeptide ingredients is avoided; the obtained autolysis powder is high in content of total nitrogen and amino acid nitrogen, high in nutritional value, low in ash content and good in product quality.

Description

technical field [0001] The invention relates to a preparation method of yeast derivatives, in particular to a preparation method of glutathione-rich nucleic acid yeast powder. Background technique [0002] Yeast is widely used in bread fermentation, beer fermentation and other fields. There are many types of yeast, including bread yeast, beer yeast, and medicinal yeast. Yeast is rich in protein, amino acids and other substances. By hydrolyzing yeast, yeast protein or Amino acids etc. [0003] Autolyzed yeast powder is made of specific fresh yeast as raw material, and is purified and refined by high-tech such as high-efficiency wall breaking and multi-linked enzymatic hydrolysis. The product is rich in nucleotides, nutritional small peptides, glutathione and yeast cell wall polysaccharides, etc. A variety of nutrients, no carrier, high temperature resistance, can be granulated, and has excellent food-attracting, immune and growth-promoting properties for animals. Suitable f...

AI Technical Summary

Problems solved by technology

[0004] Glutathione-rich yeast is used for fermentation to obtain glutathione. The traditional extraction method with the lowest cost is the copper salt method. The yeast extract containing GSH reacts with cuprous oxide to generate precipitated GSCu, which is then reduced to obtain GSH, but after removing the precipitate The mother liquor still contains a large amount of glutathione, amino acids, and polypeptides, but in the prior art, the mother liquor is mostly discharged into the sewage treatment tank for wastewater treatment, and there is no recycling and comprehensive utilization