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Endogenously enhanced biosurfactant production promotes electricity generation from microbial fuel cells
Zheng, Tao2,3,4; Xu, Yu-Shang1,2,3; Yong, Xiao-Yu2,3; Li, Bing1; Yin, Di1; Cheng, Qian-Wen1; Yuan, Hao-Ran4; Yong, Yang-Chun1
2015-12-01
Source PublicationBIORESOURCE TECHNOLOGY
Volume197Pages:416-421
AbstractMicrobial fuel cell (MFC) is considered as a promising green energy source and energy-saving pollutants treatment technology as it integrates pollutant biodegradation with energy extraction. In this work, a facile approach to enhance endogenous biosurfactant production was developed to improve the electron transfer rate and power output of MFC. By overexpression of rhlA, the key gene responsible for rhamnolipids synthesis, over-production of self-synthesized rhamnolipids from Pseudomonas aeruginosa PAO1 was achieved. Strikingly, the increased rhamnolipids production by rhlA overexpression significantly promoted the extracellular electron transfer of P. aeruginosa by enhancing electron shuttle (pyocyanin) production and increasing bacteria attachment on the anode. As a result, the strain with endogenously enhanced rhamnolipids production delivered 2.5 times higher power density output than that of the parent strain. This work substantiated that the enhancement on endogenous biosurfactant production could be a promising approach for improvement on the electricity output of MFC. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMicrobial Fuel Cells Rhamnolipid Surfactant Electron Transfer Pseudomonas Aeruginosa
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2015.08.136
WOS Subject ExtendedAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS KeywordEXTRACELLULAR ELECTRON-TRANSFER ; PSEUDOMONAS-AERUGINOSA ; BIOELECTRICITY OUTPUT ; IMPROVED PERFORMANCE ; BIOFILM DEVELOPMENT ; RHAMNOLIPIDS ; TECHNOLOGIES ; PYOCYANIN ; MEMBRANE ; BACTERIA
Indexed BySCI
Language英语
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000361828000056
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10869
Collection中国科学院广州能源研究所
Affiliation1.Jiangsu Univ, Sch Environm, Biofuels Inst, Zhenjiang 212013, Jiangsu, Peoples R China
2.Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing 210095, Jiangsu, Peoples R China
3.Nanjing Tech Univ, Bioenergy Res Inst, Nanjing 210095, Jiangsu, Peoples R China
4.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Tao,Xu, Yu-Shang,Yong, Xiao-Yu,et al. Endogenously enhanced biosurfactant production promotes electricity generation from microbial fuel cells[J]. BIORESOURCE TECHNOLOGY,2015,197:416-421.
APA Zheng, Tao.,Xu, Yu-Shang.,Yong, Xiao-Yu.,Li, Bing.,Yin, Di.,...&Yong, Yang-Chun.(2015).Endogenously enhanced biosurfactant production promotes electricity generation from microbial fuel cells.BIORESOURCE TECHNOLOGY,197,416-421.
MLA Zheng, Tao,et al."Endogenously enhanced biosurfactant production promotes electricity generation from microbial fuel cells".BIORESOURCE TECHNOLOGY 197(2015):416-421.
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