AUTHOR=Chen Chen , Deng Xiaoxiao , Kong Weilong , Qaseem Mirza Faisal , Zhao Shuai , Li Yangsheng , Wu Ai-Min 

TITLE=Rice Straws With Different Cell Wall Components Differ on Abilities of Saccharification

JOURNAL=Frontiers in Bioengineering and Biotechnology

VOLUME=8

YEAR=2021

URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2020.624314

DOI=10.3389/fbioe.2020.624314

ISSN=2296-4185

ABSTRACT=<p>Rice straw has an enormous amount of biomass for energy use, but the complexity of the cell wall component hinders technical processes. Although belonging to rice straws, the straws from different varieties should be with different treatment strategies to obtain best energy efficiency. To confirm this hypothesis, 7 different rice varieties (RPY GENG, RIL269, RIL272, RIL31, RIL57, RIL06, LUOHUI 9) with different cell wall traits from RIL population were evaluated for their response toward different pretreatments. For <italic>japonica</italic> RPY GENG, 2% of H<sub>2</sub>SO<sub>4</sub> acid was best pre-treatment while high acid (5% of H<sub>2</sub>SO<sub>4</sub>) pretreatment caused undue loss. For <italic>Indica</italic> LUOHUI 9 rice, high acid pretreatment was suitable, while RIL57 had maximum of glucose yield with high alkali (10% NaOH) pretreatment. High-concentration alkali pretreatment is the most convenient and effective pretreatment method for the treatment of unknown varieties of rice straws, because the lignin has been removed and has the lowest negative effects on the glucose yield under the high alkali condition. As the RILs used in this study vary considerably in their wall structure, an understanding of their response to different pre-treatments confirms our hypothesis and help us to understand the influence of different wall compositions on the final output.</p>