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Abstract
Lignocellulosic biomass, if properly saccharified, could be an ideal feedstock for biohydrogen production. However, the high cellulases cost is the key obstacle to its development. In this work, cost-effective enzyme produced by Trichoderma viride was used to saccharify cornstalk. To obtain high sugar yield, a central composite design of response surface method was used to optimize enzymatic saccharification process. Experimental results showed that the enzymatic saccharification rate reached the highest of 81.2% when pH, temperature, cellulases and substrate concentration were 5, 49.7 °C, 35.7 IU g−1, and 38.5 g L−1, respectively. The cornstalk hydrolysate was subsequently introduced to fermentation by Thermoanaerobacterium thermosaccharolyticum W16, the yield of hydrogen reached the highest level of 90.6 ml H2 g−1 pretreated cornstalk. The present results indicate the potential of using T. thermosaccharolyticum W16 for high yield conversion of cornstalk hydrolysate, which was saccharified by onsite enzyme produced by T. viride.
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Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details
1 State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
2 State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China; School of Life Science and Technology, Harbin Institute of Technology, Harbin, China