Organosolv pretreatment of lignocellulosic biomass for enzymatic hydrolysis

• Published in: Applied microbiology and biotechnology Vol. 82; no. 5; pp. 815 - 827
• Main Authors: Zhao, Xuebing, Cheng, Keke, Liu, Dehua
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Berlin/Heidelberg : Springer-Verlag 01.04.2009; Springer Berlin Heidelberg; Springer; Springer Nature B.V
• Subjects: acetone; Acetone - chemistry; Acetone - metabolism; Acids, Acyclic - chemistry; Acids, Acyclic - metabolism; Alcohol; Bioconversion; Biological and medical sciences; Biomass; biorefining; Biotechnology; biotransformation; By products; Cellulose; Chemical Industry - methods; Commercialization; Digestibility; Energy consumption; enzymatic hydrolysis; Enzymes; Ethanol; Ethanol - chemistry; Ethanol - metabolism; ethanol production; Explosions; Fermentation; Fundamental and applied biological sciences. Psychology; Hydrolysis; Life Sciences; Lignin; Lignin - chemistry; Lignin - metabolism; Lignocellulose; Methanol - chemistry; Methanol - metabolism; Microbial Genetics and Genomics; Microbiology; Mini-Review; Organic acids; Peracids; Pretreatment; Raw materials; Refuse Disposal - methods; Solvents; Studies; Temperature; Delignification; Biorefining; Organosolv pretreatment; Lignocellulosic biomass; Enzymatic hydrolysis; Hydrolysis; Lignocellulosics; Biomass; Pretreatment
• ISSN: 0175-7598; 1432-0614; 1432-0614
• DOI: 10.1007/s00253-009-1883-1

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.