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Enhanced carboxylic acids production by decreasing hydrogen partial pressure during acidogenic fermentation of glucose
Zhou, Miaomiao1,2; Zhou, Jun3; Tan, Ming1; Du, Juan1; Yan, Binghua1; Wong, Jonathan W. C.4; Zhang, Yang1
2017-12-01
发表期刊BIORESOURCE TECHNOLOGY
卷号245页码:44-51
摘要In this study, the effect of reduced hydrogen partial pressure (P-H2) on the generation of carboxylic acids from acidogenic fermentation of glucose was investigated. Three strategies were applied to reduce P-H2: headspace removal (T1), CO2 sparging (T2) and H-2:CO2 (80:20) sparging (T3). Results showed that the production of carboxylic acids in T1-T3 were 10.21, 11.64 and 12.71 g/L, respectively, which were 1.04, 1.19 and 1.30-fold of that in the control (T4). The composition of carboxylic acids changed significantly in T3 with enhancement of homoacetogenesis, as more acetate and butyrate were produced comparing to the control. In addition, decreasing P-H2 led to more carbon flow to carboxylic acids. Species of Clostridium became dominant in treatment T3, resulting in the shift of metabolic pathways. This study demonstrated that decreasing P-H2 could increase the production of carboxylic acids, especially under the strategy of enhancing homoacetogenesis.
文章类型Article
关键词Carboxylic Acids Production H-2 Partial Pressure Acidogenic Fermentation Homoacetogenesis
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2017.08.152
关键词[WOS]VOLATILE FATTY-ACIDS ; WASTE ACTIVATED-SLUDGE ; ANAEROBIC CO-DIGESTION ; ORGANIC LOADING RATE ; FOOD WASTE ; BIOHYDROGEN PRODUCTION ; CARBON-DIOXIDE ; MIXED CULTURE ; PH ; HOMOACETOGENESIS
收录类别SCI
语种英语
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
项目资助者Shandong Provincial Natural Science Foundation(ZR2016bb06) ; Chinese Academy of Sciences (CAS) ; National Basic Research Program of China(2013CB733500)
WOS类目Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号WOS:000412443500006
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9560
专题环境资源化与水回用团队
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Lab Waste Valorizat & Water Reuse, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanjing TECH Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing 211816, Jiangsu, Peoples R China
4.Hong Kong Baptist Univ, Sinoforest Appl Res Ctr Pearl River Delta Environ, Dept Biol, Hong Kong, Hong Kong, Peoples R China
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Zhou, Miaomiao,Zhou, Jun,Tan, Ming,et al. Enhanced carboxylic acids production by decreasing hydrogen partial pressure during acidogenic fermentation of glucose[J]. BIORESOURCE TECHNOLOGY,2017,245:44-51.
APA Zhou, Miaomiao.,Zhou, Jun.,Tan, Ming.,Du, Juan.,Yan, Binghua.,...&Zhang, Yang.(2017).Enhanced carboxylic acids production by decreasing hydrogen partial pressure during acidogenic fermentation of glucose.BIORESOURCE TECHNOLOGY,245,44-51.
MLA Zhou, Miaomiao,et al."Enhanced carboxylic acids production by decreasing hydrogen partial pressure during acidogenic fermentation of glucose".BIORESOURCE TECHNOLOGY 245(2017):44-51.
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