Effects of polyol-based deep eutectic solvents on the efficiency of rice straw enzymatic hydrolysis

Deep eutectic solvent treatment to overcome lignocellulose resistance deconstruction has great potential for the production of biofuels and bioproducts. Most investigations have been focused on optimizing sugar yield from specific feedstocks. However, little is known about interaction between deep cellulose during pretreatment, post-treatment accessibility enzymes, lignin fractionation. We evaluated four solvents that consisted choline chloride biomass-derived polyols (ethylene glycol, glycerol, xylitol, sorbitol). Choline chloride-glycerol (ChCl-Gly) pretreatment retained >90 % glucan rice straw, even at high severity (>4.2 factor). In addition, ChCl-Gly fractionated 74 wt.% completely removed acetyl groups xylan, which enhanced digestibility 21 87 %. became deposited solids limited cellulase enzymes. A sodium carbonate wash was highly effective in removing pretreated enhancing cellulose. The simple biodegradability without interfering with make a promising agent. ability fractionate both sugars enables biorefineries use as co-product.