Evolution of Jiang-Flavor Daqu's Characteristics During Different Storage Stages and Influence on Simulated Brewing Fermentation.

ABSTRACT: Daqu quality plays a crucial role in the entire fermentation process of Baijiu. There is no empirical evidence for a scientific consensus on the storage period of Jiang-flavor Daqu and its quality evaluation. This study took Jiang-flavor Daqu from a liquor enterprise in Sichuan Province as the research object. It explored the changes in physicochemical indexes, microbial communities, and volatile flavor substances of the Daqu within 0-180 days of storage. Combined with simulated brewing experiments, it analyzed the effects of different storage periods of Daqu on fermented grain fermentation and the base wine quality and clarified the metabolic differences between Daqu stored for 30 days and 180 days by means of metabolomics. The results showed that the saccharification power and fermentati

SUBMITTER: Chen Z 

PROVIDER: S-EPMC12840205 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature