中国造纸2025，Vol.44Issue(5)：1-9,9.DOI:10.11980/j.issn.0254-508X.2025.05.001
水热协同酸性低共熔溶剂对泡桐物化性质及酶解效率的影响
Effects of Combined Hydrothermal-acid DES Pretreatment on the Physicochemical Properties and Enzymatic Hydrolysis of Paulownia
摘要
Abstract
The hydrothermal combined with acidic deep eutectic solvent(DES)treatments were used to pretreat Paulownia to obtain high xylose yield and enzymatic hydrolysis efficiency.Firstly,tartaric acid(TA)assisted hydrothermal pretreatment was utilized to treat Paulownia.The effects of temperature(120～160℃),time(15～120 min),and TA quality fraction(0～10%)on xylose yield were investigated.Subsequently,the hydrothermal residue was subjected to post-treatment with deep eutectic solvent(DES)composed of choline chloride and lactic acid operat-ed at 90～150℃for 2～8 h.The results show that the optimal hydrothermal pretreatment conditions were 140℃,60 min and quality fraction 4%TA,resulting in a maximum xylose yield of 80.5%.the combined hydrothermal and DES treatments effectively removed hemicellulose and lig-nin,leading to increased crystallinity,surface roughness,specific surface area and accessibility of the treated Paulownia.The optimal DES post-treatment conditions were determined to be 130℃for 6 h.Under the optimal treatment conditions,the removal rates of hemicellulose and lignin reached 100%and 89.7%,respectively,with a cellulose retention rate of 77.3%and an enzymatic hydrolysis efficiency of 85.2%,which was 4.6 times higher than that of Paulownia.关键词
水热预处理/低共熔溶剂/泡桐/木糖/酶水解Key words
hydrothermal pretreatment/deep eutectic solvent/Paulownia/xylose/enzymatic hydrolysis分类
轻工纺织引用本文复制引用
陈艾霓,孙丽丽,韩颖,曹学飞,孙少妮..水热协同酸性低共熔溶剂对泡桐物化性质及酶解效率的影响[J].中国造纸,2025,44(5):1-9,9.基金项目
国家自然科学基金(32071717). （32071717）
