中国造纸2024，Vol.43Issue(6)：1-8,8.DOI:10.11980/j.issn.0254-508X.2024.06.001
酸/碱性低共熔溶剂预处理对轻木物化性质及酶水解影响
Effects of Pretreatment with Acidic/Alkaline Deep Eutectic Solvents on Physical and Chemical Properties and Cellulose Enzymatic Hydrolysis of Balsa Wood
摘要
Abstract
Balsa wood was subjected to acidic/alkaline deep eutectic solvent(DES)pretreatment at 110℃for 5 h,and the chemical compo-sition,surface morphology,structural variation,and enzymatic hydrolysis performance of the balsa wood before and after pretreatment were analyzed.The results showed that all three types of acidic/alkaline DES pretreatments effectively deconstructed the balsa wood raw material.The acidic DES removed nearly all hemicelluloses and a portion of lignin,with the stronger acidic treatment using acidic aluminum chloride hexahydrate/propanetriol system resulting in partial cellulose degradation.The alkaline choline chloride/ethanolamine system pretreatment led to substantial removal of lignin while preserving a significant amount of carbohydrates in the residue.The pretreatment significantly en-hanced cellulase hydrolysis,increasing the glucose yield from 16.5%in the raw material to 52.6%～60.7%.Even after being recycled three times,the cellulose hydrolysis rate of DES remained more than 2.5 times higher than that of the raw material.关键词
轻木/低共熔溶剂/预处理/酶解/循环使用Key words
balsa wood/deep eutectic solvent/pretreatment/enzymatic hydrolysis/recycling分类
轻工纺织引用本文复制引用
唐义泉,芮安娜,杨积有,商赛男,司传领,边静..酸/碱性低共熔溶剂预处理对轻木物化性质及酶水解影响[J].中国造纸,2024,43(6):1-8,8.基金项目
国家自然科学基金(32271804). （32271804）
