Xylitol Production from Sugarcane Bagasse Through Ultrasound-Assisted Alkaline Pretreatment and Enzymatic Hydrolysis Followed by Fermentation

This study focused on the optimization of xylitol production from sugarcane bagasse by using response surface methodology. Xylitol was produced through a series processes, firstly, ultrasound-assisted mild alkaline pretreatment for xylan extraction followed enzymatic hydrolysis to xylose enzyme β-1,4-xylanase and finally microbial fermentation yeast (Candida guilliermondii), bacteria (Corynebacterium glutamicum) their mixed culture different time periods (0–96 h). Maximum recovery 12.059% (w/w) observed at pretreatment; 0.73 M NaOH, 1:38.55 solid-to-liquid ratio 34.77 min ultrasonication. The concentration 400 U/g 48 h incubation showed highest (81.51 mg/g bagasse). Yeast (C. guilliermondii) resulted in yield (Yp/s = 0.43 g/g) after 72 h. bioprocess route can contribute as suitable alternative chemical methods production.