深共晶溶剂
化学
酶水解
水解
木质素
甘油
木糖
溶剂
还原糖
稻草
溴化物
木聚糖
生物量(生态学)
核化学
化学工程
糖
有机化学
共晶体系
农学
无机化学
合金
发酵
生物
工程类
作者
Wei Tang,Bo Fan,Xinyue Wang,Caoxing Huang,Zhengyu Tang,Yu-Cai He
标识
DOI:10.1016/j.indcrop.2023.117587
摘要
Deep eutectic solvent (DES) pretreatment plays an indispensable role in destroying the natural anti-degradation barrier structure of lignocellulose. Here, the cetyltrimethylammonium bromide and glycerol were used to synthesize novel DES and introduced to the pretreatment process to facilitate the enzymatic hydrolysis efficiency of rape straw (RS). The results showed that the delignification and xylan removal could extremely reach 46.1% and 52.7% under optimal conditions (molar ratio of 1:6, 200 °C, 90 min), respectively. It also resulted in 171.4 mg/g higher accessibility, 7.2% higher crystallinity, and 122.3 m2/g lower lignin surface area in RS concerning morphological changes of deconstructed and porous cell wall structure. Ultimately, the reducing sugar yield of RS was increased from 27.4% to 67.9% after pretreatment with this type of DES. This study exploited a novel DES for facilely reducing the recalcitrance of lignocellulose and a promising process for efficient saccharification using renewable biomass.
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