Biotechnology Letters

, Volume 10, Issue 2, pp 123–128 | Cite as

Electron flow shift inClostridiumacetobutylicum fermentation by electrochemically introduced reducing equivalent

  • Tae Sung Kim
  • Byung Hong Kim


Electrochemical energy as a source of reducing equivalent was applied to the cultures ofClostridumacetobutylicum to understand the effects of the pressure by reducing equivalent on anaerobic bacteria. The fermentation byC.acetobutylicum with methyl viologen and electrochemical energy produced more butanol (up to 26%) than the control culture, whilst less acetone (up to 25%) was produced. But no effect was observed on the growth of the culture. These results were indirectly supported byinvitro electrochemical reduction of NAD+ and artificial electron carriers.


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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Tae Sung Kim
    • 1
  • Byung Hong Kim
    • 1
  1. 1.Applied Microbiology Lab., Genetic Engineering CenterKorea Advanced Institute of Science and technologySeoulKorea

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