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Initial pH-driven production of volatile fatty acid from hybrid Pennisetum

文献类型：期刊论文

作者Xing, Tao1,2; Wang, Zhi1,2,3; Zhen, Feng1,2; Liu, Huiliang1,2,4; Wo, Defang5; Li, Lianhua1,2; Guo, Ying1,2; Kong, Xiaoying1,2; Sun, Yongming1,2
刊名BIORESOURCE TECHNOLOGY
出版日期2022-03-01
卷号347页码:8
ISSN号0960-8524
关键词VFA production Anaerobic digestion Hybrid Pennisetum Initial pH Microbial community
DOI10.1016/j.biortech.2021.126426
通讯作者Kong, Xiaoying(kongxy@ms.giec.ac.cn)
英文摘要In this work, the impact of initial pH on the production of volatile fatty acids (VFAs) of hybrid Pennisetum was investigated. The batch experiments were conducted under six distinct beginning pH at a mesophilic temperature. Initial pH had an obvious effect on VFA yield and composition, and severe alkaline circumstances (pH(in) = 11.0) could boost VFA production and acetic acid selectivity. The highest VFAs yield and acetate proportion were obtained when the initial pH was 11.0, with 518 +/- 29 mg g(-1) VS and 92%. Furthermore, microbial community analysis showed that alkaliphilic acetogenic anaerobe such as Amphibacillus, Tissierella, and Natronincola were the dominant species when the initial pH was 11.0. The Amphibacillus is the main hydrolysis bacterium under these conditions because of its high ability for xylan degradation at pH 9.0-10.0. Because of the increased VFA yield and superior acetic acid selectivity, the results suggest that adjusting the initial pH to 11.0 in batch mode would be possible for scaling-up purposes.
WOS关键词ANAEROBIC-DIGESTION ; FOOD WASTE ; METHANE PRODUCTION ; VFAS PRODUCTION ; ORGANIC-MATTER ; GEN. NOV. ; FERMENTATION ; ACIDOGENESIS ; ACCUMULATION ; INHIBITION
资助项目National Natural Science Foundation of China[51808528] ; National Natural Science Foundation of China[21978289] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400]
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000794133000006
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.giec.ac.cn/handle/344007/36521]  
专题中国科学院广州能源研究所
通讯作者Kong, Xiaoying
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Tao,Wang, Zhi,Zhen, Feng,et al. Initial pH-driven production of volatile fatty acid from hybrid Pennisetum[J]. BIORESOURCE TECHNOLOGY,2022,347:8.
APA Xing, Tao.,Wang, Zhi.,Zhen, Feng.,Liu, Huiliang.,Wo, Defang.,...&Sun, Yongming.(2022).Initial pH-driven production of volatile fatty acid from hybrid Pennisetum.BIORESOURCE TECHNOLOGY,347,8.
MLA Xing, Tao,et al."Initial pH-driven production of volatile fatty acid from hybrid Pennisetum".BIORESOURCE TECHNOLOGY 347(2022):8.

入库方式： OAI收割

来源：广州能源研究所

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