Journal
BIORESOURCE TECHNOLOGY
Volume 312, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2020.123601
Keywords
Sugarcane bagasse; NaOH-catalyzed organosolv pretreatment; Glucose; Tween 80
Funding
- National Key Research and Development Program of China [2019YFB1503802, 2019YFB1503805]
- National Natural Science Foundation of China [21978108, 21706038]
- CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion [Y807k51001]
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In this study, NaOH-catalyzed organosolv pretreatment with different loading of NaOH (0-10%) was proposed to disrupt the recalcitrant structure by degrading lignin, reserve the majority of cellulose and hemicellulose, and improve the enzymatic efficiency of sugarcane bagasse. It was found that the higher loading of NaOH during organosolv pretreatment yielded more glucose, and the synergistic performance of NaOH and ethanol on enzymolysis was superior to that pretreated with only NaOH and only ethanol during two-step pretreatment. Furthermore, Tween 80 was added to determine its influence on enzymolysis after NaOH-catalyzed organosolv pretreatment, leading to the highest glucose yield of 95.1% at 24 h, which saved 2/3 hydrolysis time while generating the similar glucose yield comparing with that without Tween 80. However, the increased yields of glucose by adding Tween 80 were decreased as hydrolysis time was prolonged from 6 h to 24 h.
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