Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum

doi:10.1016/j.cej.2022.141069

	Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum
	Zhang, Yuechao 1,2,3; Zheng, Shiling3 ; Hao, Qinqin 1; Wang, Oumei 1; Liu, Fanghua1,2,3,4
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
	2023-01-15
卷号	456 页码:10
关键词	Respiratory electrogenes Fermentative electrotrophs Geobacter Clostridium Hydrogen
DOI	10.1016/j.cej.2022.141069
通讯作者	Liu, Fanghua([email protected])
英文摘要	Electrogens and electrotrophs are microorganisms that generate and consume electricity in a bioelectrochemical system, respectively. However, the influence of respiratory electrogen Geobacter on the hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum remains unclear. Herein, cocultures with Geo-bacter sulfurreducens and C. pasteurianum were successfully established during glucose fermentation. Compared with those in C. pasteurianum monoculture alone, the maximum rate and yield of hydrogen production in the coculture increased by 122.2% and 28.92%, respectively. Meanwhile, substrate conversation efficiency elevated by 50.6%. The acetic and butyric acid fermentation pathways in the cocultures were also promoted relative to those in the monoculture. Carbon and electron balance analysis also unraveled that acetate production in syn-trophic coculture accounted for approximately-two times more carbon and electron contributions than that in the monoculture. A direct manner mediated by pili-like structures or cell contacts was built between the two elec-troactive bacteria during the electric syntropy. Extracellular electron inputting from G. sulfurreducens shifted the fermentative pattern of C. pasteurianum, which resulted in an enhanced acetic acid fermentation pathway accompanied by a higher hydrogen yield. These findings provide new insights into electric syntrophy between respiratory electrogenic G. sulfurreducens and fermentative electrotrophic C. pasteurianum. A new strategy for hydrogen enhancement by coculturing hydrogen-producing electrotrophic bacteria with electrogenic microor-ganisms is also explored.
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Guangdong Foundation for Program of Science and Technology Research ; GDAS' Project of Science and Technology Development ; Pearl River Talent Recruitment Program of Guangdong Province
收录类别	SCI
语种	英语
关键词[WOS]	COCULTURE FERMENTATION ; BIOHYDROGEN PRODUCTION ; SULFURREDUCENS ; REDUCTION ; MAGNETITE ; PH ; METHANOGENESIS ; FERRIHYDRITE ; BEIJERINCKII ; METHANE
研究领域[WOS]	Engineering
WOS记录号	WOS:000911679000001
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/37069
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Liu, Fanghua
作者单位	1.Inst Ecoenvironm & Soil Sci, Guangdong Acad Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China 2.Laoshan Lab, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 4.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, 808 Tianyuan Rd, Guangzhou 510650, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yuechao,Zheng, Shiling,Hao, Qinqin,et al. Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum[J]. CHEMICAL ENGINEERING JOURNAL,2023,456:10.
APA	Zhang, Yuechao,Zheng, Shiling,Hao, Qinqin,Wang, Oumei,&Liu, Fanghua.(2023).Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum.CHEMICAL ENGINEERING JOURNAL,456,10.
MLA	Zhang, Yuechao,et al."Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum".CHEMICAL ENGINEERING JOURNAL 456(2023):10.