Time courses of single culture ofC. cellulovoranswith AECC as sole carbon source. AECC was decomposed and converted to soluble sugars and organic acids, which could be used to produced solvents in ABE fermentation. (A) Time courses of pH, total cellulase activity, total sugars accumulation and AECC degradation, (B) Time courses of organic acids and solvents production, (C) Time courses of monosaccharides and disaccharides accumulation. ▲AECC, △total sugars, ▼pH, ★ABE, ◁total cellulase activity, ✰accetone, ■butanol, ▽ethanol, ▷acetic acid, □butyric acid, ●cellobiose, ○glucose, ◆xylobiose, ◇xylose, ▶arabinose.