Organosolv pretreatment of lignocellulosic biomass for enzymatic hydrolysis

Mini-Review

Abstract

Production of ethanol by bioconversion of lignocellulosic biomass has attracted much interest in recent years. However, the pretreatment process for increasing the enzymatic digestibility of cellulose has become a key step in commercialized production of cellulosic ethanol. During the last decades, many pretreatment processes have been developed for decreasing the biomass recalcitrance, but only a few of them seem to be promising. From the point of view for integrated utilization of lignocellulosic biomass, organosolv pretreatment provides a pathway for biorefining of biomass. This review presents the progress of organosolv pretreatment of lignocellulosic biomass in recent decades, especially on alcohol, organic acid, organic peracid and acetone pretreatments, and corresponding action mechanisms. Evaluation and prospect of organosolv pretreatment were performed. Finally, some recommendations for future investigation of this pretreatment method were given.

Keywords

Lignocellulosic biomass Organosolv pretreatment Enzymatic hydrolysis Biorefining Delignification 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Institute of Applied Chemistry, Department of Chemical EngineeringTsinghua UniversityBeijingChina
  2. 2.Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijingChina

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