Organosolv pretreatment of plant biomass for enhanced enzymatic saccharification

Zhang, Zhanying, Harrison, Mark, Rackemann, Darryn, Doherty, William, & O'Hara, Ian (2016) Organosolv pretreatment of plant biomass for enhanced enzymatic saccharification. Green Chemistry, 18(2), pp. 360-381.

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Abstract

The combination of dwindling petroleum reserves and population growth make the development of renewable energy and chemical resources more pressing than ever before. Plant biomass is the most abundant renewable source for energy and chemicals. Enzymes can selectively convert the polysaccharides in plant biomass into simple sugars which can then be upgraded to liquid fuels and platform chemicals using biological and/or chemical processes. Pretreatment is essential for efficient enzymatic saccharification of plant biomass and this article provides an overview of how organic solvent (organosolv) pretreatments affect the structure and chemistry of plant biomass, and how these changes enhance enzymatic saccharification. A comparison between organosolv pretreatments utilizing broadly different classes of solvents (i.e., low boiling point, high boiling point, and biphasic) is presented, with a focus on solvent recovery and formation of by-products. The reaction mechanisms that give rise to these by-products are investigated and strategies to minimize by-product formation are suggested. Finally, process simulations of organosolv pretreatments are compared and contrasted, and discussed in the context of an industrial-scale plant biomass to fermentable sugar process.

Impact and interest:

9 citations in Scopus
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7 citations in Web of Science®

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ID Code: 91323
Item Type: Journal Article
Refereed: Yes
Keywords: Organosolv Pretreatment, lignocellulose, cellulose, delignification, enzymatic hydrolysis
DOI: 10.1039/C5GC02034D
ISSN: 1463-9270
Divisions: Current > Research Centres > Centre for Tropical Crops and Biocommodities
Current > Institutes > Institute for Future Environments
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 Royal Society of Chemistry
Deposited On: 17 Dec 2015 01:23
Last Modified: 01 Dec 2016 14:01

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