Bio-Heat Is a Key Environmental Driver Shaping the Microbial Community of Medium-Temperature Daqu.

ABSTRACT: "Daqu" is a saccharifying and fermenting agent commonly used in the traditional solid-state fermentation industry (e.g., baijiu and vinegar). The patterns of microbial community succession and flavor formation are highly similar among batches, yet the mechanisms promoting temporal succession in the Daqu microbial ecology remain unclear. Here, we first correlated temporal profiles of microbial community succession with environmental variables (temperature, moisture, and titratable acidity) in medium temperature Daqu (MT-Daqu) throughout fermentation. Temperature dynamics significantly correlated (P < 0.05) with the quick succession of MT-Daqu microbiota in the first 12 d of fermentation, while the community structure was relatively stable after 12 d. Then, we explored the effect of t

SUBMITTER: Xiao C 

PROVIDER: S-EPMC5691423 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature