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CONVERSION OF GLUCOSE-C14 TO PROPIONATE BY THE RUMEN MICROBIOTA1

By R. L. Baldwin, W. A. Wood and R. S. Emery

Abstract

Baldwin, R. L. (Michigan State University, East Lansing), W. A. Wood, and R. S. Emery. Conversion of glucose-C14 to propionate by the rumen microbiota. J. Bacteriol 85:1346–1349. 1963.—Rumen microbiota enriched on three different diets calculated to present different levels of available carbohydrate were incubated with glucose-1-C14, glucose-2-C14, and glucose-6-C14 to determine the contribution of the randomizing (succinate) and nonrandomizing (acrylate) routes to propionate. The propionate was labeled as though 70 to 100% was formed via the randomizing route and 0 to 30% via the nonrandomizing route. The contribution of the acrylate pathway increased with higher carbohydrate availability of the diet. These results are discussed with respect to earlier data using lactate-2-C14 and lactate-3-C14, and a unifying concept for both sets of data is presented

Topics: Articles
Year: 1963
OAI identifier: oai:pubmedcentral.nih.gov:278339
Provided by: PubMed Central
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