Characterization of Novel Deep Eutectic Solvent, Choline Chloride/Glutamic Acid, as Efficient Solvent for Lignin Dissolution

被引：2
|
作者：
Saito, Kaori [1 ]
Hashizume, Tomohiro [1 ,2 ]
Kitayama, Kenji [1 ,2 ]
Watanabe, Takashi [1 ]
机构：
[1] Kyoto Univ, Res Inst Sustainable Humanosphere, Kyoto 6100011, Japan
[2] Daicel Corp, Kita Ku, Ofuka Cho, Osaka 5300011, Japan
来源：
CHEMISTRY LETTERS | 2022年 / 51卷 / 04期
关键词：
Deep eutectic solvents; Glutamic acid; Lignocellulose; HYDROGEN-BOND INTERACTIONS; PYROGLUTAMIC ACID; TEMPERATURE; CHLORIDE; PRETREATMENT; TRANSITION;
D O I：
10.1246/cl.210723
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel amino acid-based deep eutectic solvent (DES), choline chloride (ChCl)/glutamic acid (Glu), was developed as a green renewable solvent for efficient biomass pretreatment. Spectroscopic analysis revealed that Glu is rapidly converted to pyroglutamic acid (pGlu) through dehydration during the DES formation. However, hydrogen bond formation differed between ChCl/Glu DES and DES formed by mixing ChCl/pGlu. Furthermore, lignin was dissolved readily at 10% concentration in ChCl/Glu DES, indicating significant potential for application of ChCl/Glu DES in lignocellulosic biomass pretreatment.
引用
收藏
页码：407 / 411
页数：5
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