Electrochemical activity of an Fe(III)-reducing bacterium, Shewanella putrefaciens IR-1, in the presence of alternative electron acceptors

Byung Hong Kim, Tokuji Ikeda, Hyung Soo Park, Hyung Joo Kim, Moon Sik Hyun, Kenji Kano, Kazuyoshi Takagi, Hirosuke Tatsumi

Research output: Contribution to journalArticle

122 Citations (Scopus)

Abstract

Cyclic voltammetry demonstrated that cells of Shewanella putrefaciens grown under anaerobic conditions without nitrate were electrochemically active. The electrochemical activity was inactivated reversibly by exposure to air, but not by nitrate. Lactate and an applied potential at +200 mV against an Ag/AgCl reference electrode restored the electrochemical activity. These findings can be used to improve the performance of a mediator-less microbial fuel cell using electrochemically active bacteria in the presence of nitrate.

Original languageEnglish
Pages (from-to)475-478
Number of pages4
JournalBiotechnology Techniques
Volume13
Issue number7
DOIs
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Shewanella putrefaciens
Nitrates
Bacteria
Electrons
Bioelectric Energy Sources
Microbial fuel cells
Cyclic voltammetry
Lactic Acid
Electrodes
Air

Keywords

  • Bioelectrochemistry
  • Cyclic voltammetry
  • Metal reducing bacterium
  • Shewanella putrefaciens

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Biochemistry

Cite this

Electrochemical activity of an Fe(III)-reducing bacterium, Shewanella putrefaciens IR-1, in the presence of alternative electron acceptors. / Kim, Byung Hong; Ikeda, Tokuji; Park, Hyung Soo; Kim, Hyung Joo; Hyun, Moon Sik; Kano, Kenji; Takagi, Kazuyoshi; Tatsumi, Hirosuke.

In: Biotechnology Techniques, Vol. 13, No. 7, 1999, p. 475-478.

Research output: Contribution to journalArticle

Kim, Byung Hong ; Ikeda, Tokuji ; Park, Hyung Soo ; Kim, Hyung Joo ; Hyun, Moon Sik ; Kano, Kenji ; Takagi, Kazuyoshi ; Tatsumi, Hirosuke. / Electrochemical activity of an Fe(III)-reducing bacterium, Shewanella putrefaciens IR-1, in the presence of alternative electron acceptors. In: Biotechnology Techniques. 1999 ; Vol. 13, No. 7. pp. 475-478.
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