Issue 23, 2021
From the journal:

RSC Advances

Ethylene glycol based acid pretreatment of corn stover for cellulose enzymatic hydrolysis

Fengyang Xue,a   Wenzhi Li, ORCID logo *ab   Shengxin An,c   Cunshuo Li,a   Xu Li,a   Mingwei Wua  and  Xiuzhi Weia  

* Corresponding authors

a Laboratory of Basic Research in Biomass Conversion and Utilization, University of Science and Technology of China, Hefei 230026, PR China

b Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China

c Institute of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, PR China

Abstract

A highly efficient pretreatment strategy using ethylene glycol with dilute sulfuric acid was developed for the fractionation of lignocellulose. The pretreatment behaviors were related to the composition analysis and structure of the samples analyzed by SEM, XRD, FTIR and 2D HSQC NMR, resulting in 80.3% delignification and 84.7% retention of cellulose under the selected conditions (120 °C, 60 min, and 0.6 wt% H2SO4 (w/w)). The enzymatic hydrolysis sugar yield significantly increased from 24.1 to 70.6% (3 FPU g−1), which displayed immense improvement compared with untreated corn stover (24.1%), nearly 3-fold higher than its untreated counterparts. Besides, the regenerated lignin could be fitted to valorize renewable aromatic chemicals and alkane fuels. The present study shows that the pretreatment is a simple, efficient and promising process for corn stover biorefinery.

Graphical abstract: Ethylene glycol based acid pretreatment of corn stover for cellulose enzymatic hydrolysis

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/D0RA10877D
Article type
Paper
Submitted
28 Dec 2020
Accepted
08 Apr 2021
First published
14 Apr 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 14140-14147

Permissions

Request permissions

Ethylene glycol based acid pretreatment of corn stover for cellulose enzymatic hydrolysis

F. Xue, W. Li, S. An, C. Li, X. Li, M. Wu and X. Wei, RSC Adv., 2021, 11, 14140 DOI: 10.1039/D0RA10877D

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements