Preparation and Characterization of Cellulose Nanofibrils from Lignocellulose Using a Deep Eutectic Solvent Followed by Enzymatic Treatment

被引：1

作者：

Lee E.-A. ^{[1
]}

Han S.-Y. ^{[2
]}

Kwon G.-J. ^{[2
,3
]}

Kim J.-K. ^{[1
]}

Bandi R. ^{[2
]}

Dadigala R. ^{[2
]}

Park J.-S. ^{[1
]}

Park C.-W. ^{[2
]}

Lee S.-H. ^{[1
,2
,3
]}

机构：

[1] Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon

[2] Institute of Forest Science, Kangwon National University, Chuncheon

[3] Kangwon Institute of Inclusion Technology, Kangwon National University, Chuncheon

来源：

Journal of the Korean Wood Science and Technology | 2022年 / 50卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

cellulose nanofibril; deep eutectic solvent; enzymatic hydrolysis; lignocellulose;

D O I：

10.5658/WOOD.2022.50.6.436

中图分类号：

学科分类号：

摘要：

Lignocellulose nanofibrils (LCNFs) were prepared using a two-step deep eutectic solvent (DES) and enzymatic pretreatment followed by mechanical defibrillation, and we examined the effects of enzymatic pretreatment conditions on different characteristics of the LCNFs thus obtained. The LCNFs yielded using the two-step DES pretreatment (Enz-LCNF) exhibited a well-defibrillated entangled web-like structure with an average fiber diameter ranging from 15.7 to 20.4 nm. Furthermore, we found that the average diameter and filtration time of the Enz-LCNFs decreased with an increase in enzyme concentration and enzymatic treatment time, whereas we detected a concomitant reduction in the tensile strength of the Enz-LCNF sheets. The Enz-LCNFs were characterized by a typical cellulose Ⅰ structure, thereby indicating that the enzymatic treatment causes very little damage to the crystalline form. © 2022 The Korean Society of Wood Science & Technology.

引用

页码：436 / 447

页数：11

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