YEAST PROTEIN HAVING ANTIBACTERIAL FUNCTION AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2023/125566

A1

Provided in the present application are a yeast protein having an antibacterial function and a preparation method therefor. The method comprises: step S1, performing liquid fermentation on a Saccharomyces cerevisiae strain, and then performing separation to obtain a yeast milk; step S2, acidifying the yeast milk to obtain an acidified yeast milk; and optionally, subjecting the yeast milk to autolysis, or exogenous enzyme catalytic hydrolysis, or mechanical crushing to obtain a cell wall emulsion; step S3, mixing the acidified yeast milk and the optional cell wall emulsion and performing autolysis to obtain an autolysis mixture solution; step S4, performing first enzymolysis with a compound protease to obtain a first enzymolysis solution; step S5, performing second enzymolysis using a seminase to obtain a second enzymolysis solution; and performing third enzymolysis using a β-glucanase and a cellulase to obtain a yeast protein emulsion; and step S6, evaporating and concentrating the yeast protein emulsion to obtain the yeast protein having an antibacterial function. The method can be used for preparing a yeast protein having a broad-spectrum antibacterial function.

QIN XIANWU (CN)
XU ZHIPENG (CN)
HU JUNPENG (CN)
DAI JINJUN (CN)
XIE ZHIWEN (CN)
HUANG XIN (CN)

PCT/CN2022/142484

July 06, 2023

December 27, 2022

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ANGEL YEAST CO LTD (CN)

C12P1/02; A23L31/10; C12N1/06; C12N1/16

CN109247447A	2019-01-22
CN109207384A	2019-01-15
CN111513180A	2020-08-11
CN109303195A	2019-02-05
CN110959750A	2020-04-07

KANGXIN PARTNERS, P.C. (CN)

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