Fig. 3

Conversion of varisized corn stover. a Reaction routes. b Enzymatic saccharification. Reaction conditions: 50 mg of corn stover samples, 5 FPU g−1 solids of enzyme (Cellic® Ctec2), 1 mL of 50 mM citrate buffer (pH 4.8), 50 °C, 72 h. c Acid-catalyzed alcoholysis. Reaction conditions: 1 g of corn stover samples, 0.2 g of H2SO4, 20 g of ethanol, 160 °C, 30 min. Error bars indicate standard deviation from duplicate measurements