JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 38 Issue 5
October 2023
Article Contents
MA Yesheng, YU Miao, WANG Mian, et al. Community structure and spatial characteristics of high-temperature Daqu in eight Baijiu companies in Maotai town[J]. Journal of Light Industry, 2023, 38(5): 26-35. doi: 10.12187/2023.05.004
Citation: MA Yesheng, YU Miao, WANG Mian, et al. Community structure and spatial characteristics of high-temperature Daqu in eight Baijiu companies in Maotai town[J]. Journal of Light Industry, 2023, 38(5): 26-35. doi: 10.12187/2023.05.004 shu

Community structure and spatial characteristics of high-temperature Daqu in eight Baijiu companies in Maotai town

  • Received Date: 2022-06-02
    Accepted Date: 2023-03-24
  • Next-generation sequencing technology was used to analyze the fungal and bacterial community structure of high-temperature Daqu from eight Baijiu companies in Maotai town, and their physicochemical indexes were measured, the two were combined for redundancy analysis (RDA). Solid-phase microextraction was used to analyze the main flavor components of high-temperature Daqu and principal component analysis (PCA) was carried out to explore the spatial characteristics of high-temperature Daqu in Maotai town. The results showed that the bacterial content was relatively high and the fungal content was relatively low from eight Baijiu companies in Maotai town. Ascomycota, Mucoromycota, and Basidiomycota were the main fungal phyla, while Firmicutes and Actinobacteria were the main bacterial phyla. The high-temperature Daqu produced by companies located closer to the center of Maotai town had higher physicochemical indexes, and richer species diversity. There were differences in the physicochemical properties of high-temperature Daqu among eight Baijiu companies. And there was a certain correlation between the physicochemical properties of high-temperature Daqu and its microbial community, but not significant (P>0.05). The high-temperature Daqu from eight Baijiu companies could not be well clustered within the small-scale range of Maotai town or at a distance from the center of Maotai town. And there were certain differences in the volatile components of high-temperature Daqu from wight Baijiu companies.
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