Effect of CO partial pressure on cell-recycled continuous CO fermentation by Eubacterium limosum KIST612

In Seop Chang, Byung Hong Kim, Robert W. Lovitt, Joon Seoung Bang

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Eubacterium limosum KIST612 was cultivated on carbon monoxide using a cell-recycled continuous fermentation system to produce organic acids. A bubble column reactor system (kLa = 72 h-1 was used with a membrane to allow on-line products removal with cell recycle. When cell concentration reached 5.25 g 1-1 in the reactor, the cell concentration did not increase at carbon monoxide (CO) partial pressures lower than 74 kPa though CO was consumed with the acidic products formation. At this stage, the overall CO mass transfer rate (kLa[C* - CL]) was lower than required for the maximum cell growth (qCO maxX), but higher than that to meet the maintenance requirement (msX). When the CO mass transfer rate was maintained higher than maintenance requirement by increasing CO partial pressure, the cell concentration increased to 9.5 g 1-1.

Original languageEnglish
Pages (from-to)411-421
Number of pages11
JournalProcess Biochemistry
Volume37
Issue number4
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Eubacterium
Partial Pressure
Carbon Monoxide
Carbon monoxide
Partial pressure
Fermentation
Mass transfer
Maintenance
Bubble columns
Organic acids
Cell growth
Membranes
Acids
Growth

Keywords

  • Acetogen
  • Carbon monoxide
  • Eubacterium limosum
  • Mass transfer limitation
  • Organic acid
  • Synthesis-gas

ASJC Scopus subject areas

  • Biochemistry

Cite this

Effect of CO partial pressure on cell-recycled continuous CO fermentation by Eubacterium limosum KIST612. / Chang, In Seop; Kim, Byung Hong; Lovitt, Robert W.; Bang, Joon Seoung.

In: Process Biochemistry, Vol. 37, No. 4, 2001, p. 411-421.

Research output: Contribution to journalArticle

Chang, In Seop ; Kim, Byung Hong ; Lovitt, Robert W. ; Bang, Joon Seoung. / Effect of CO partial pressure on cell-recycled continuous CO fermentation by Eubacterium limosum KIST612. In: Process Biochemistry. 2001 ; Vol. 37, No. 4. pp. 411-421.
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