Journal
BIORESOURCE TECHNOLOGY
Volume 224, Issue -, Pages 411-418Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.11.026
Keywords
Hydrolysis; Lignin; Hydrophobicity; Mechanism; Adsorption; Stability
Funding
- Indian Oil Corporation Ltd.
- R&D Centre, Faridabad
- Department of Biotechnology (DBT), Govt. of India
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In this study, commercial surfactants have been investigated at economically viable dosage to enhance the enzymatic saccharification of pretreated wheat straw at high solid loadings. Twenty one surfactants were evaluated with pilot scale pretreated wheat straw and mechanism of surfactant action has been elucidated. One surfactant has improved the saccharification of dilute acid wheat straw (DAWS) by 26.4% after 24 h and 23.1% after 48 h while, steam exploded wheat straw (SEWS) saccharification was increased by 51.2% after 24 h and 36.4% after 48 h at 10% solid loading. At 20% solid loading, about 31% increase in yield was obtained on DAWS and about 55% on SEWS after 48 h. Further, lignin was isolated from pretreated wheat straws and characterized which revealed that SEWS derived lignin was more hydrophobic than DAWS lignin. This investigation suggests that surfactant supplementation during saccharification is an effective strategy to achieve higher saccharification yield. (C) 2016 Elsevier Ltd. All rights reserved.
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