In Vitro Fecal Fermentation Patterns of Arabinoxylan from Rice Bran on Fecal Microbiota from Normal-Weight and Overweight/Obese Subjects
Document Type
Article
Publication Title
Nutrients
PubMed ID
34203983
MeSH Headings (Medical Subject Headings)
Adult; Bacteria (classification); Diet; Dietary Carbohydrates; Dietary Fiber; Edible Grain; Fatty Acids, Volatile; Feces (microbiology); Female; Fermentation; Gastrointestinal Microbiome; Humans; Male; Obesity (microbiology); Oryza (chemistry); Overweight; Phylogeny; Prebiotics; Triticum; Xylans (isolation & purification, metabolism)
Abstract
Arabinoxylan (AX) is a structural polysaccharide found in wheat, rice and other cereal grains. Diets high in AX-containing fiber may promote gut health in obesity through prebiotic function. Thus, the impact of soluble AX isolated from rice bran fiber on human gut microbiota phylogenetic composition and short-chain fatty acid (SCFA) production patterns from normal-weight and overweight/obese subjects was investigated through in vitro fecal fermentation. Results showed that rice bran arabinoxylan modified the microbiota in fecal samples from both weight classes compared to control, significantly increasing Collinsella, Blautia and Bifidobacterium, and decreasing Sutterella, Bilophila and Parabacteroides. Rice bran AX also significantly increased total and individual SCFA contents (p < 0.05). This study suggests that rice bran AX may beneficially impact gut health in obesity through prebiotic activities.
DOI
10.3390/nu13062052
Publication Date
6-15-2021
Recommended Citation
Gu, Inah; Lam, Wing Shun; Marasini, Daya; Brownmiller, Cindi; Savary, Brett J.; Lee, Jung Ae; Carbonero, Franck; and Lee, Sun-Ok, "In Vitro Fecal Fermentation Patterns of Arabinoxylan from Rice Bran on Fecal Microbiota from Normal-Weight and Overweight/Obese Subjects" (2021). Arkansas Biosciences Institute. 45.
https://arch.astate.edu/abi/45
