region, medium-high temperature daqu, bacterial diversity, high-throughput sequencing, gene function, Food processing and manufacture, TP368-456

In order to clarify the differences in the community structure and gene function of medium-high temperature Daqu bacteria in Linyi, Shandong Province and Zhoukou, Henan Province. MiSeq high-throughput sequencing technology was used to analyze the bacterial community structure of medium-high temperature Daqu in the two regions, and the potential functions of bacterial taxa were analyzed based on the clusters of orthologous groups of proteins (COG). The result of α diversity showed that there were no significant differences in richness and diversity (P>0.05). Compared with Daqu in Zhoukou area, at the phylum level, the average relative abundance of Actinobacteria and Bacteroidetes in Daqu in Linyi area were significantly lower (P