Ammonia fiber expansion-assisted deep eutectic solvent treatment for wheat straw fraction separation and bioconversion

文献类型： 外文期刊

第一作者： Hu, Mingyang

作者： Hu, Mingyang;Yuan, Lin;Cai, Ziyuan;Fu, Qiang;Ji, Dandan;Zhang, Weihua;Zhang, Weihua;Ji, Dandan

作者机构：

关键词： Lignocellulose; Pretreatment; Enzymatic hydrolysis; Lignin; Biorefinery

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.4； 五年影响因子：10.6 ）

ISSN： 0960-8524

年卷期： 2023 年 367 卷

页码：

收录情况： SCI

摘要： In this study, an ammonia fiber expansion (AFEX)-assisted deep eutectic solvent (DES) pretreatment method was developed for the rapid separation of wheat straw fractions, which reduced the pretreatment time for DES and improved the pretreatment efficiency. This study describes the feasibility of the AFEX-assisted DES pretreatment in terms of both progressive and parallel relationships and analyzes the subsequent enzymatic effect in generating glucose from cellulose. Ammonia fiber expansion-assisted DES one-pot pretreatment at 120 degrees C, for 1.5 h resulted in an enzymatic efficiency of 98.0 +/- 3.1 %. Moreover, the enzyme efficiency remained greater than 85 % after three recovery cycle experiments. The comparison between regenerated-lignin (D-lignin) and alkalinelignin showed that regenerated lignin has a lower molecular weight and belongs to para-hydroxy-phenylguaiacyl-syringyl (H-G-S) type lignin. This study developed is a green and efficient pretreatment process with great potential in the separation and utilization of biomass fractions.

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