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Effects of different pretreatment strategies on corn stalk acidogenic fermentation using a microbial consortium

文献类型： 外文期刊

作者： Guo, Peng 1 ; Mochidzuki, Kazuhiro 3 ; Cheng, Wei 2 ; Zhou, Ming 2 ; Gao, Hong 2 ; Zheng, Dan 4 ; Wang, Xiaofen 1 ; Cui, 1 ;

作者机构： 1.China Agr Univ, Ctr Biomass Engn, Coll Agron & Biotechnol, Beijing 100193, Peoples R China

2.Hubei Acad Agr Sci, Inst Agr Prod Proc & Nucl Agr Technol Res, Wuhan 430064, Peoples R China

3.Univ Tokyo, Inst Ind Sci, Tokyo 1538505, Japan

4.Guangxi Soil & Fertilizer Stat, Nanning 530007, Peoples R China

关键词： Acidogenic fermentation;Lignocellulose degradation;Microbial consortium;Pretreatments;Volatile fatty acid (VFA)

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

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收录情况： SCI

摘要： The effects of sulfuric acid, acetic acid, aqueous ammonia, sodium hydroxide, and steam explosion pretreatments of corn stalk on organic acid production by a microbial consortium, MC1, were determined. Steam explosion resulted in a substrate that was most favorable for microbial growth and organic acid productions. The total amounts of organic acids produced by MC1 on steam exploded, sodium hydroxide, sulfuric acid, acetic acid, and aqueous ammonia pretreated corn stalk were 2.99, 2.74, 1.96, 1.45, and 2.21. g/l, respectively after 3. days of fermentation at 50 °C. The most prominent organic products during fermentation of steam-exploded corn stalks were formic (0.86. g/l), acetic (0.59. g/l), propanoic (0.27. g/l), butanoic (0.62. g/l), and lactic acid (0.64. g/l) after 3. days of fermentation; ethanol (0.18. g/l), ethanediol (0.68. g/l), and glycerin (3.06. g/l) were also produced. These compounds would be suitable substrates for conversion to methane by anaerobic digestion.

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[2]Bioconversion of un-pretreated lignocellulosic materials by a microbial consortium XDC-2. Wang Hui,Li Jiajia,Wang Xiaofen,Cui Zongjun,Lu Yucai,Guo Peng,Wang Hui,Kazuhiro, Mochidzuki.

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