A comprehensive review on the use of deep eutectic solvents for biomass processing, and the synergistic coupling with physical technology and biological method

Clinton E. Okonkwo, Syed Zameer Hussain, Sobiya Manzoor, Bazila Naseer, Abiola Ezekiel Taiwo, Mutamed Ayyash, Ali H. Al-Marzouqi, Afaf Kamal-Eldin

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)

Abstract

This review discusses biomass recalcitrance, deep eutectic solvents (DESs), application of DESs in biomass fractionation and processing (delignification, cellulose dissolution and saccharification, catalytic conversion, two-phase separation, and lignin valorization), and synergistic effect of DES with other methods (physical technologies and/or biological methods). Furthermore, this review elaborates on the impact of these technologies on energy consumption and environmental safety, as well as techno-economic analysis of biomass processing. DES pretreatment can remodel biomass by facilitating lignin removal, cellulose dissolution and enzymatic hydrolysis, and their conversion to bioproducts (5-hydroxymethylfurfural and carboxylic acids). The coupling of microwave heating to DES promotes DES biomass fractionation compared to conventional heating. DES improves the enzyme thermostability and residual activity during biomass fractionation. Overall, the combined technologies reduced energy consumption, and are a possible route to greener production for biorefineries.

Original languageEnglish
Article number101577
JournalBioresource Technology Reports
Volume23
DOIs
Publication statusPublished - Sept 2023

Keywords

  • Biological method
  • Biomass processing
  • Deep eutectic solvents (DES)
  • Lignocellulosic biomass
  • Physical technologies

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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