Ionic liquid assisted pretreatment to improve cellulose fractionation of lignocellulosic biomass

Marttin Paulraj Gundupalli, Prapakorn Tantayotai, S. T. Anne Sahithi, Santi Chuetor, Pau Loke Show, Malinee Sriariyanun

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Scopus citations


Over the past few decades, the search for an alternative feedstock to replace fossil fuels has been promoted worldwide to reduce environmental pollution. Lignocellulosic biomass is considered to be a high-potential feedstock because of its benefits in terms of sustainability for the supply chain and its environmental friendliness. However, few implementation cases of lignocellulosic biomass have had success at an industrial scale or in commercialization due to economic and technological limitations in up-scaling. The main bottleneck for conversion of lignocellulosic biomass to value-added products is pretreatment. However, many pretreatment methods have been developed and their advantages and disadvantages discussed. Ionic liquid is applied in the pretreatment of lignocellulosic biomass due to its effectiveness in solubilizing cellulose, removing lignin, and enhancing enzymatic saccharification. In this chapter, point-to-point analysis of ionic liquid (IL) pretreatment limitations are described with case studies for different types of biomass, and state-of-the-art techniques to reduce these constrains are explained. Technological gaps and challenges for improvements in IL pretreatment are listed to provide ideas for further developments to achieve successful technology integration in industrial applications.

Original languageBritish English
Title of host publicationIonic Liquid-Based Technologies for Environmental Sustainability
Number of pages25
ISBN (Electronic)9780128245453
ISBN (Print)9780128245460
StatePublished - 1 Jan 2021


  • Biorefinery
  • Fractionation
  • Green solvent
  • Ionic liquid
  • Lignocellulosic biomass
  • Pretreatment


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