Cited by 337Biofuel production and bioconversionCatalysis for Biomass ConversionThermochemical Biomass Conversion Processes

Ultrafast fractionation of lignocellulosic biomass by microwave-assisted deep eutectic solvent pretreatment

Chen, Zhu, Wan, Caixia·2018·Bioresource Technology

Abstract

Deep eutectic solvents (DESs) have received increasing attention in recent years as designer solvents for bioprocessing. In this study, ultrafast microwave-assisted DES pretreatment was developed for lignocellulose fractionation. The pretreatment was conducted for 45 s with microwave irradiation at 800 W using a DES composed of choline chloride and lactic acid (ChCl: LA). The results indicated that such pretreatment was highly effective in removing lignin and xylan while retaining most of cellulose in the pretreated solids. The ultrafast fractionation increased the cellulose digestibility by 2-5 folds. Switchgrass gave a similar glucose yield to corn stover but experienced less cellulose loss during the pretreatment. Miscanthus was also substantially fractionated but showed lower digestibility than switchgrass and corn stover. Lignin was readily recoverable with relatively high purity from all the pretreatment liquor. Our study demonstrated an innovative ultrafast pretreatment process with superior effectiveness for biomass fractionation and cellulose digestibility improvement as well as lignin extraction.

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Registry

Crossref · 10.1016/j.biortech.2017.11.066

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32 of 32 references verified0 citation errors · 0 not checkable

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  • Ultrasound- and microwave-assisted stirring methods have been proposed to reduce time in biomass pretreatment, achieving near-full lignin dissolution in as little as 45 s.

    “Owing to the high viscosity of these solutions, ultrasoundand microwave-assisted stirring methods have been proposed to reduce the time spent on this step, achieving near-full lignin dissolution in as little as 45 s [32].”

    From Deep eutectic solvents: overcoming 21st century challenges (2019) · cites this paper as [32]

  • Reactions involving lipase, protease, and cellulase in DESs illustrate enhanced activity and stability.

    “Reactions provided in literature where hydrolysis, transesterification, esterification, and alcoholysis involving lipase, protease, and cellulase illustrate well this enhanced activity and stability [29,31,32].”

    From Deep eutectic solvents: overcoming 21st century challenges (2019) · cites this paper as [32]

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Authors
Chen, Z., & Wan, C.
Affiliations
University of Missouri (US)
Corresponding author
Wan, Caixia
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2018-02
Volume
250
Pages
532-537
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2770377575
Cited by
337
References
33
Citations by year
2026: 29 · 2025: 28 · 2024: 48 · 2023: 42 · 2022: 50 · 2021: 53 · 2020: 50 · 2019: 20 · 2018: 17
FWCI
10.71
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
Keywords
deep eutectic solvents, microwave pretreatment, lignocellulose fractionation, choline chloride, lactic acid, lignin removal, xylan removal, cellulose digestibility, lignin recovery, switchgrass, corn stover, Miscanthus
MeSH terms
Cellulose, Zea mays, Hydrolysis, Lignin, Microwaves, Solvents, Biomass

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