Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1

Yong Xiao; Lidan Liu; Lexing You; Feng Zhao; Jingdong Zhang

Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1

Yong Xiao
, Lidan Liu
, Lexing You
, Feng Zhao
, Jingdong Zhang

Department of Chemistry

Chinese Academy of Sciences

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

Abstract

Electrochemically active microorganisms are microbes which can transfer electrons from cell to extracellular electron acceptors such as minerals, contaminants, electrodes, etc., and these processes are defined as extracellular electron transfer. In this study, we isolated and identified a new electrochemically active strain of Bacillus megatherium strain LLD-1, and its extracellular electron transfer mechanism was demonstrated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), HPLC, and chronoamperometric.
The CV and DPV showed that a redox peaks ascribing to membrane proteins was found in the strain LLD-1; another redox peaks observed in cell and supernatant were ascribed to flavins. 74% increment of voltage generation in LLD-1 inoculated microbial fuel cell (MFC) can be made by adding extra 0.1 μM flavins mixture solution.

Original language	English
Publication date	2016
Number of pages	1
Publication status	Published - 2016
Event	Sustain-ATV Conference 2016: Creating Technology for a Sustainable Society - Technical University of Denmark, Kgs. Lyngby, Denmark Duration: 30 Nov 2016 → 30 Nov 2016 http://www.sustain.dtu.dk/about/sustain-2016

Conference

Conference	Sustain-ATV Conference 2016
Location	Technical University of Denmark
Country/Territory	Denmark
City	Kgs. Lyngby
Period	30/11/2016 → 30/11/2016
Internet address	http://www.sustain.dtu.dk/about/sustain-2016

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Sustain Abstract E-14

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@conference{9be0cefd5f0e433b9ff5826c6cf3fbe1,

title = "Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1",

abstract = "Electrochemically active microorganisms are microbes which can transfer electrons from cell to extracellular electron acceptors such as minerals, contaminants, electrodes, etc., and these processes are defined as extracellular electron transfer. In this study, we isolated and identified a new electrochemically active strain of Bacillus megatherium strain LLD-1, and its extracellular electron transfer mechanism was demonstrated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), HPLC, and chronoamperometric. The CV and DPV showed that a redox peaks ascribing to membrane proteins was found in the strain LLD-1; another redox peaks observed in cell and supernatant were ascribed to flavins. 74\% increment of voltage generation in LLD-1 inoculated microbial fuel cell (MFC) can be made by adding extra 0.1 μM flavins mixture solution.",

author = "Yong Xiao and Lidan Liu and Lexing You and Feng Zhao and Jingdong Zhang",

note = "Sustain Abstract E-14; Sustain-ATV Conference 2016 : Creating Technology for a Sustainable Society ; Conference date: 30-11-2016 Through 30-11-2016",

year = "2016",

language = "English",

url = "http://www.sustain.dtu.dk/about/sustain-2016",

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TY - ABST

T1 - Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1

AU - Xiao, Yong

AU - Liu, Lidan

AU - You, Lexing

AU - Zhao, Feng

AU - Zhang, Jingdong

N1 - Sustain Abstract E-14

PY - 2016

Y1 - 2016

N2 - Electrochemically active microorganisms are microbes which can transfer electrons from cell to extracellular electron acceptors such as minerals, contaminants, electrodes, etc., and these processes are defined as extracellular electron transfer. In this study, we isolated and identified a new electrochemically active strain of Bacillus megatherium strain LLD-1, and its extracellular electron transfer mechanism was demonstrated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), HPLC, and chronoamperometric. The CV and DPV showed that a redox peaks ascribing to membrane proteins was found in the strain LLD-1; another redox peaks observed in cell and supernatant were ascribed to flavins. 74% increment of voltage generation in LLD-1 inoculated microbial fuel cell (MFC) can be made by adding extra 0.1 μM flavins mixture solution.

AB - Electrochemically active microorganisms are microbes which can transfer electrons from cell to extracellular electron acceptors such as minerals, contaminants, electrodes, etc., and these processes are defined as extracellular electron transfer. In this study, we isolated and identified a new electrochemically active strain of Bacillus megatherium strain LLD-1, and its extracellular electron transfer mechanism was demonstrated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), HPLC, and chronoamperometric. The CV and DPV showed that a redox peaks ascribing to membrane proteins was found in the strain LLD-1; another redox peaks observed in cell and supernatant were ascribed to flavins. 74% increment of voltage generation in LLD-1 inoculated microbial fuel cell (MFC) can be made by adding extra 0.1 μM flavins mixture solution.

M3 - Conference abstract for conference

T2 - Sustain-ATV Conference 2016

Y2 - 30 November 2016 through 30 November 2016

ER -

Flavins mediate extracellular electron transfer in Gram-positive Bacillus megaterium strain LLD-1

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