PMID: 9425246Mar 14, 1998Paper

Fermentation of maize bran, oat bran, and wheat bran by Bacteroides ovatus V975

Current Microbiology
S A MartinD E Akin

Abstract

Bacteroides ovatus is a Gram-negative obligate anaerobe that was isolated from the human colon and is capable of utilizing xylan. The objective of this study was to evaluate the ability of B. ovatus V975 to digest maize bran, oat bran, and wheat bran as well as the isolated cell walls from each bran source. Strain V975 was incubated in basal medium that contained either 0.1 or 0.3 g of each bran or each bran cell wall for 0, 24, 48, and 72 h. Acetate and succinate were the main products detected from each fermentation; however, less of each end product was produced from the isolated cell walls than from each bran. More of the oat bran was digested (in vitro dry matter disappearance = 74.8%) during the 72 h incubation than any other bran source. While each bran contained arabinose and xylose, more glucose, galactose, and mannose were utilized by strain V975 during the 72-h incubation than either pentose sugar. Compared with each bran, the bran cell walls had lower concentrations of most sugars, and more glucose than any other sugar was utilized by strain V975. These results suggest that strain V975 preferentially utilizes glucose, galactose, and mannose in each bran, while glucose is the main sugar fermented in bran cell walls.

Citations

Jun 15, 2013·Environmental Microbiology·Stephanie A EichorstSteven W Singer
Jul 13, 2007·International Journal of Systematic and Evolutionary Microbiology·Céline RobertAnnick Bernalier-Donadille
Sep 13, 2019·International Journal of Systematic and Evolutionary Microbiology·Seung Yeob YuJu Huck Lee

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