Inhibition of Butyrate Oxidation by Formate during Methanogenesis

Author:

Bae Jaeho1,McCarty Perry L.1

Affiliation:

1. Department of Civil Engineering, Stanford University, Stanford, California 94305

Abstract

A mixed methanogenic culture fed with glucose was perturbed with butyrate and formate to investigate the role of formate in the acetogenesis of butyrate. A free energy analysis suggests that formate rather than H 2 was the interspecies electron carrier for butyrate conversion into acetate for the culture studied.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference10 articles.

1. Bae J. and P. L. McCarty. Variation of CO production during methane fermentation from glucose. Water Environ. Res. submitted for publication.

2. Diffusion of the interspecies electron carriers H2 and formate in methanogenic ecosystems and its implications in the measurement of Km for H2 or formate uptake;Boone D. R.;Appl. Environ. Microbiol.,1989

3. Methanobacillus omelianskii, a symbiotic association of two species of bacteria;Bryant M. P.;Arch. Mikrobiol.,1967

4. Syntrophic association of a butyrate-degrading bacterium and Methanosarcina enriched from bovine rumen fluid;McInerney M. J.;Appl. Environ. Microbiol.,1981

5. Reduced product formation following perturbation of ethanol- and propionate-fed methanogenic CSTRs;Smith D. P.;Biotechnol. Bioeng.,1989

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