(b) Butanol production by C. acetobutylicum XY16 using the hydrolysate generated by GVL/water solution with 61 g/L total sugars. The fermentation medium contains 45.4 g/L glucose, 15.0 g/L xylose, and 0.6 g/L Arabinose. Arabinose was combined into glucose due to its low concentration.