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Investigation of the Effects of Ternary Deep Eutectic Solvent Composition on Pretreatment of Sorghum Stover
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  • Yunxuan Wang,
  • Jiae Ryu,
  • Kwang Ho Kim,
  • Xianzhi Meng,
  • Yunqiao Pu,
  • Yang Tian,
  • Aymerick Eudes,
  • Gyu Leem,
  • Arthur J. Ragauskas,
  • Chang Geun Yoo
Yunxuan Wang
SUNY College of Environmental Science and Forestry
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Jiae Ryu
SUNY College of Environmental Science and Forestry
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Kwang Ho Kim
Korea Institute of Science and Technology
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Xianzhi Meng
The University of Tennessee Knoxville Tickle College of Engineering
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Yunqiao Pu
Oak Ridge National Laboratory
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Yang Tian
Lawrence Berkeley National Laboratory
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Aymerick Eudes
Lawrence Berkeley Laboratory
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Gyu Leem
SUNY College of Environmental Science and Forestry
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Arthur J. Ragauskas
The University of Tennessee Knoxville
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Chang Geun Yoo
SUNY College of Environmental Science and Forestry

Corresponding Author:cyoo05@esf.edu

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Abstract

Biomass-derived deep eutectic solvents (DESs) have been introduced as promising pretreatment and fractionation solvents because of their mild processing conditions, easy synthesis, and green solvent components from biomass. In recent DES studies, solvent-based third constituents like water, ethanol, and others improve the processibility of typical binary DESs. However, the impacts of these components are not well understood. Here, two solvent-based constitutions, including water and ethylene glycol, were applied to 3,4-dihydroxybenzoic acid (DHBA)-based DES system for improving the conversion efficiency of cellulose-rich fraction and the properties of lignin fraction. Compositional changes, enzymatic digestibility of carbohydrate components, and transformation of lignin were used to evaluate the impact of each constituent on biomass processing. Ternary DHBA-ChCl DESs exhibited better performances in delignification, fermentable sugar production, and preservation of β–O–4 ether linkage in lignin compared to neat ChCl-DHBA DES.
02 May 2023Submitted to AIChE Journal
27 May 2023Submission Checks Completed
27 May 2023Assigned to Editor
27 May 2023Review(s) Completed, Editorial Evaluation Pending
04 Jun 2023Reviewer(s) Assigned
05 Jul 2023Editorial Decision: Revise Major
01 Aug 20231st Revision Received
05 Aug 2023Submission Checks Completed
05 Aug 2023Assigned to Editor
05 Aug 2023Review(s) Completed, Editorial Evaluation Pending
06 Aug 2023Reviewer(s) Assigned
10 Aug 2023Editorial Decision: Accept