extremely significantp < 0.001
Based on unweighted one-way ANOVA ( Figure 3C ), the difference between the HB (0.31 ± 0.04) and SC (0.13 ± 0.04) rice koji microbial community structure groups was calculated by Euclidean distance, and the Mann–Whitney test showed that the differences between the two groups was extremely significant ( p < 0.001) ( Figure 3D ).