Integrated approach for cellulosic ethanol and succinic acid production: Gamma valerolactone-based pretreatment and co-fermentation of peanut shells
文献类型： 外文期刊
作者： Xu, Chao 1 ; Zhou, Wen 1 ; Zhu, Zuohua 2 ; Feng, Siran 6 ; Fang, Fang 1 ; Liu, Dandan 7 ; Liu, Xudong 8 ; Huang, Shushi 9 ; Lin, Qian 2 ; Peng, Yuande 2 ; Xie, Chunliang 2 ;
作者机构： 1.Changsha Univ Sci & Technol, Sch Food & Bioengn, Changsha 410005, Peoples R China
2.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Peoples R China
3.Chinese Acad Agr Sci, Ctr Southern Econ Crops, Engn & Technol Ctr Bast Fiber Crops Hunan Prov, Key Lab Biol & Proc Bast Fiber Crops,Minist Agri, Changsha 410205, Peoples R China
4.Rural Affairs Engn & Technol Ctr Bast Fiber Crops, Changsha 410205, Peoples R China
5.Hunan Prov Key Lab Tradit Chinese Med Agr Biogenom, Changsha, Peoples R China
6.Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
7.Hebei Univ Engn, Sch Landscape & Ecologocal Engn, Handan 056000, Peoples R China
8.Hunan Acad Forestry, State Key Lab Utilizat Woody Oil Resource, Changsha 410004, Peoples R China
9.Guangxi Acad Sci, Guangxi Beibu Gulf Marine Res Ctr, Guangxi Key Lab Marine Nat Prod & Combinatorial Bi, Nanning 530007, Peoples R China
关键词： Cellulosic ethanol; Succinic acid; Lignocellulosic biomass
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2025 年 290 卷
页码：
收录情况： SCI
摘要： The inability to utilize pentose poses as a significant limitation to the production of cellulosic ethanol. To attain efficient raw material conversion and mitigate carbon dioxide emissions during cellulosic ethanol synthesis, a integrated approach focused on the co-processing of ethanol and succinic acid (SA) from peanut shells was proposed. The results demonstrated that the GVL system, containing 30 % water and catalyzed by dilute sulfuric acid, exhibited remarkable efficiency in pretreatment, boosting glucose yield sixfold relative to the untreated raw material. Under optimal conditions of 82 mM sulfuric acid, 141 degrees C, 56 min, and a solid-to-liquid ratio of 0.07, the glucose yield of the pretreated peanut shell reached 79.0 +/- 0.22 %. Through recycling the pretreatment solvent, Tween 80-assisted enzymatic catalysis, and coupling of saccharification and co-fermentation processes, the complete utilization of lignocellulosic feedstocks and sustainable production of high titers of SA (86.1 g/kg) and ethanol (66.4 g/kg) were achieved. This study developed a novel integrated procedure for the efficient coproduction of SA and ethanol from peanut shells, offering a new perspective for the efficient biorefinery of lignocellulosic biomass.
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