14-07-2023 дата публикации
Номер: CN116426591A
Принадлежит:
The invention provides a preparation method of a red yeast rice yellow wine lees nitrogen source. According to the method, a method of combining ultrasonic waves and an enzyme method is adopted, and protein is extracted from red yeast rice yellow wine vinasse and used for fermentation of L-lactic acid. The method comprises the following steps: firstly, adding a compound enzyme to carry out enzymolysis, and carrying out ultrasonic treatment under the assistance of the enzymolysis at the same time at the ultrasonic power of 400-600w for 20-30min; by adopting the method, rich soluble protein, polypeptide, amino acid and partial starch hydrolysate can be obtained, the protein content reaches 70% or above, the waste and difficult-to-treat red yeast rice yellow wine lees serve as a nitrogen source for lactic acid fermentation to be comprehensively utilized, waste of lees resources is avoided, the additional value of products is greatly improved, the treatment cost of residues is saved, and the ...
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