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. 1976 Mar;31(3):342–348. doi: 10.1128/aem.31.3.342-348.1976

Inhibitory effects of H2 on growth of Clostridium cellobioparum.

K T Chung
PMCID: PMC169777  PMID: 779644

Abstract

Hydrogen inhibits the growth of hydrogen-producing Clostridium cellobioparum, but not of Escherichia coli or Bacteroides ruminicola. The inhibition is reversible. When hydrogen was removed either by palladium black or by gassing out the tube, glucose utilization increased as did optical density and hydrogen production of C. cellobioparum. Removal of the H2 by methanogenic bacteria favors the growth of C. cellobioparum. Grown with Methanobacterium ruminantium in various concentrations of glucose, the Clostridium reaches a higher optical density and produces more H2 and a higher viable cell count. The cell yield is also higher than in pure culture. In mixed culture, C. cellobioparum produces more acetic acid and less lactic acid, ethanol, and butyric acid than in pure culture. The significance of this metabolic shift and hydrogen utilization in methanogenesis is discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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