Comparison of Different Soluble Dietary Fibers during the <i>In Vitro</i> Fermentation Process
Junying Bai, Yan Li, Tingting Li, Wenhui Zhang, Mingcong Fan, Kuiliang Zhang +4 more
Journal of Agricultural and Food Chemistry
Abstract
Soluble dietary fibers being fermented by gut microbiota constitute a pivotal prerequisite for soluble dietary fibers exhibiting physiological functions. However, the relationship between fiber type and gut microbiota metabolism remains unclear. The purpose of this study was to investigate and compare the effect of fiber types on short-chain fatty acid (SCFA) biosynthesis in a simulated colon. Results showed that different soluble dietary fibers caused distinct metabolic profiles both in SCFAs and organic acids. Further analysis revealed that the SCFA biosynthesis pathway was related to the chain structure of fiber polysaccharides. Moreover, the microbial community structure showed substantial difference among experimental groups. <i>Parabacteroides</i> was substantially elevated in the resistant starch group, while <i>Lactobacillus</i> was the predominant genus in other groups. Correlation analysis further revealed that SCFA biosynthesis was correlated with microbial taxa at different taxonomic levels. Totally, the present study provided an insight into targeted intervention of gut microorganisms for dictating SCFA and organic acid production.
Extracted Claims
5 claims extracted from this paper into the knowledge graph
Lactobacillus predominant other groups
“<i>Parabacteroides</i> was substantially elevated in the resistant starch group, while <i>Lactobacillus</i> was the predominant genus in other groups.”
SCFA biosynthesis correlate with microbial taxa
“Correlation analysis further revealed that SCFA biosynthesis was correlated with microbial taxa at different taxonomic levels.”
SCFA biosynthesis pathway relate to chain structure of fiber polysaccharides
“Further analysis revealed that the SCFA biosynthesis pathway was related to the chain structure of fiber polysaccharides.”