The activities of endo-β-1,4-glucanase, cellulase, and β-glucosidase (A), Spearman’s correlation between these enzymes and the top five bacteria at 15, 24 and 36 h during cellulose fermentation (B). The activity of exo-β-xylanase, α-L-arabinofuranosidases and β-xylosidase (C), Spearman’s correlation between these enzymes and the top five bacteria at 15, 24 and 36 h during arabinoxylan fermentation (D). The activity of endo-β-1,4-glucanase and β-glucosidase (E), Spearman’s correlation between these enzymes and the top five bacteria at 15, 24 and 36 h during β-glucan fermentation (F). The activity of β-glucosidase and β-mannosidase (G), Spearman’s correlation between these enzymes and the top five bacteria at 15, 24 and 36 h during glucomannan fermentation (H). All data were analyzed by the one-way ANOVA with Tukey’s post-hoc test and presented as the mean value (n = 9, * mean p < 0.05; ** means p < 0.01; Con, control; Cel, cellulose; Arx, arabinoxylan; β-Glu, β-glucan; Glu, glucomannan).