In the present study,a sustainable pretreatment methodology combining liquid hot water and deep eutectic solvent is proposed for the efficient fractionation of hemicellulose,cellulose,and lignin from sugarcane bagasse...In the present study,a sustainable pretreatment methodology combining liquid hot water and deep eutectic solvent is proposed for the efficient fractionation of hemicellulose,cellulose,and lignin from sugarcane bagasse,thereby facilitating the comprehensive utilization of both C5 and C6 sugars.The application of this combined pretreatment strategy to sugarcane bagasse led to notable enhancements in enzymatic saccharification and subsequent fermentation.Experiment results demonstrate that liquid hot water-deep eutectic solvent pretreatment yielded 85.05±0.66 g·L^(-1)of total fermentable sugar(glucose:60.96±0.21 g·L^(-1),xylose:24.09±0.87 g·L^(-1))through enzymatic saccharification of sugarcane bagasse.Furthermore,fermentation of the pretreated sugarcane bagasse hydrolysate yielded 34.33±3.15 g·L^(-1)of bioethanol.These findings confirm the effectiveness of liquid hot water-deep eutectic solvent pretreatment in separating lignocellulosic components,thus presenting a sustainable and promising pretreatment method for maximizing the valuable utilization of biomass resources.展开更多
基金the National Natural Science Foundation of China for financial support of this research(Grant Nos.21978053,51508547).
文摘In the present study,a sustainable pretreatment methodology combining liquid hot water and deep eutectic solvent is proposed for the efficient fractionation of hemicellulose,cellulose,and lignin from sugarcane bagasse,thereby facilitating the comprehensive utilization of both C5 and C6 sugars.The application of this combined pretreatment strategy to sugarcane bagasse led to notable enhancements in enzymatic saccharification and subsequent fermentation.Experiment results demonstrate that liquid hot water-deep eutectic solvent pretreatment yielded 85.05±0.66 g·L^(-1)of total fermentable sugar(glucose:60.96±0.21 g·L^(-1),xylose:24.09±0.87 g·L^(-1))through enzymatic saccharification of sugarcane bagasse.Furthermore,fermentation of the pretreated sugarcane bagasse hydrolysate yielded 34.33±3.15 g·L^(-1)of bioethanol.These findings confirm the effectiveness of liquid hot water-deep eutectic solvent pretreatment in separating lignocellulosic components,thus presenting a sustainable and promising pretreatment method for maximizing the valuable utilization of biomass resources.
