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Title: Improvement of biomass properties by pretreatment with ionic liquids for bioconversion process
Authors: Weerachanchai, Piyarat
Leong, Susanna Su Jan
Chang, Matthew Wook
Ching, Chi Bun
Lee, Jong-Min
Issue Date: 2012
Source: Weerachanchai, P., Leong, S. S. J., Chang, M. W., Ching, C. B.,& Lee, J. M. (2012). Improvement of biomass properties by pretreatment with ionic liquids for bioconversion process. Bioresource Technology, 111, 453-459.
Series/Report no.: Bioresource technology
Abstract: Cassava pulp residue and rice straw were used as a precursor for pretreatment with ionic liquids to study the effects of pretreatment conditions on product yield and properties. Cassava pulp residue is a potential biomass in the bioconversion process due to it requiring mild pretreatment conditions while providing a high sugar conversion. The maximum sugar conversion and lignin extraction are attained from pretreatment of biomasses with particle size of <38 μm and ionic liquid of 1-Ethyl-3-methylimidazolium acetate at 120 °C for 24 h. The effectiveness of ionic liquid for biomass pretreatment process follows the sequence: 1-Ethyl-3-methylimidazolium acetate > 1-Ethyl-3-methylimidazolium diethyl phosphate > 1,3-Dimethylimidazolium methyl sulfate. The increase of pretreatment temperature from 25 to 120 °C and decrease of biomass particle size renders higher sugar conversion, lignin extraction and lower crystallinity index. However, pretreatment at temperatures higher than 120 °C shows a sharp decline of regenerated biomass yield, sugar conversion and lignin extraction and giving higher crystallinity index at pretreatment temperature of 180 °C.
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2012.02.023
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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