Deciphering the microbial succession and color formation mechanism of "green-covering and red-heart" Guanyin Tuqu.

ABSTRACT: "Green-covering and red-heart" Guanyin Tuqu (GRTQ), as a type of special fermentation starter, is characterized by the "green-covering" formed on the surface of Guanyin Tuqu (SQ) and the "red-heart" in the center of Guanyin Tuqu (CQ). However, the mechanisms that promote temporal succession in the GRTQ microbial ecology and the formation of "green-covering and red-heart" characteristics remain unclear. Herein, we correlated the temporal profiles of microbial community succession with the main environmental variables (temperature, moisture, and acidity) and spatial position (center and surface) in GRTQ throughout fermentation. According to the results of high-throughput sequencing and culture-dependent methods, the microbial communities in the CQ and SQ demonstrated fun

SUBMITTER: Zhu L 

PROVIDER: S-EPMC11300261 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature