Formate and glucose stimulation of methane and hydrogen production in rumen liquor

Ellis, Jayne E., Williams, Alan G. and Lloyd, David ORCID: https://orcid.org/0000-0002-5656-0571 1990. Formate and glucose stimulation of methane and hydrogen production in rumen liquor. Current Microbiology 20 (4) , pp. 251-254. 10.1007/BF02089419

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Abstract

Membrane-inlet mass spectrometry was used to investigate the effects of increasing the concentration of the rumen metabolites, formate and glucose, upon CH4 and H2 production during fermentation by unfractionated rumen liquor. Additions of formate up to 3.6 mM stimulated CH4 and then excess H2 production. Each addition caused a large accumulation of H2 (>40 µM), which returned to in situ concentrations after periods of more than 1 h. Glucose additions up to 2.0 mM gave linear increases in CH4 and H2 production. The conversion of substrate carbon into CH4 was found to decrease from 34% to 9% for formate, as concentrations were increased (1.6–3.6 mM); approximately 13.5% of the glucose carbon was converted to CH4.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences
Publisher:	Springer Verlag (Germany)
ISSN:	0343-8651
Last Modified:	26 Oct 2022 08:34
URI:	https://orca.cardiff.ac.uk/id/eprint/127813

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