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

doi:10.1016/j.cej.2022.141069

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Respiratory electrogen Geobacter boosts hydrogen production efficiency of fermentative electrotroph Clostridium pasteurianum
	Zhang, Yuechao 2,3,4; Zheng, Shiling 2; Hao, Qinqin 4; Wang, Oumei 4; Liu, Fanghua 1,2,3,4
刊名	CHEMICAL ENGINEERING JOURNAL
	2023-01-15
卷号	456 页码:10
关键词	Respiratory electrogenes Fermentative electrotrophs Geobacter Clostridium Hydrogen
ISSN号	1385-8947
DOI	10.1016/j.cej.2022.141069
通讯作者	Liu, Fanghua(fhliu@soil.gd.cn)
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.
WOS关键词	COCULTURE FERMENTATION ; BIOHYDROGEN PRODUCTION ; SULFURREDUCENS ; REDUCTION ; MAGNETITE ; PH ; METHANOGENESIS ; FERRIHYDRITE ; BEIJERINCKII ; METHANE
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000911679000001
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
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/32552]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Liu, Fanghua
作者单位	1.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, 808 Tianyuan Rd, Guangzhou 510650, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 3.Laoshan Lab, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.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
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.