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Comparison of Different Soluble Dietary Fibers during the In Vitro Fermentation Process. 2021

Junying Bai, and Yan Li, and Tingting Li, and Wenhui Zhang, and Mingcong Fan, and Kuiliang Zhang, and Haifeng Qian, and Hui Zhang, and Xiguang Qi, and Li Wang
School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.

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. Parabacteroides was substantially elevated in the resistant starch group, while Lactobacillus 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.

UI MeSH Term Description Entries
D003106 Colon The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON. Appendix Epiploica,Taenia Coli,Omental Appendices,Omental Appendix,Appendices, Omental,Appendix, Omental
D004043 Dietary Fiber The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins. Fiber, Dietary,Roughage,Wheat Bran,Bran, Wheat,Brans, Wheat,Dietary Fibers,Fibers, Dietary,Roughages,Wheat Brans
D005232 Fatty Acids, Volatile Short-chain fatty acids of up to six carbon atoms in length. They are the major end products of microbial fermentation in the ruminant digestive tract and have also been implicated in the causation of neurological diseases in humans. Fatty Acids, Short-Chain,Short-Chain Fatty Acid,Volatile Fatty Acid,Acid, Short-Chain Fatty,Acid, Volatile Fatty,Fatty Acid, Short-Chain,Fatty Acid, Volatile,Fatty Acids, Short Chain,Short Chain Fatty Acid,Short-Chain Fatty Acids,Volatile Fatty Acids
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D005285 Fermentation Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID. Fermentations
D000069196 Gastrointestinal Microbiome All of the microbial organisms that naturally exist within the GASTROINTESTINAL TRACT. Enteric Bacteria,Gastric Microbiome,Gastrointestinal Flora,Gastrointestinal Microbial Community,Gastrointestinal Microbiota,Gastrointestinal Microflora,Gut Flora,Gut Microbiome,Gut Microbiota,Gut Microflora,Intestinal Flora,Intestinal Microbiome,Intestinal Microbiota,Intestinal Microflora,Bacteria, Enteric,Flora, Gastrointestinal,Flora, Gut,Flora, Intestinal,Gastric Microbiomes,Gastrointestinal Microbial Communities,Gastrointestinal Microbiomes,Gastrointestinal Microbiotas,Gut Microbiomes,Gut Microbiotas,Intestinal Microbiomes,Intestinal Microbiotas,Microbial Community, Gastrointestinal,Microbiome, Gastric,Microbiome, Gastrointestinal,Microbiome, Gut,Microbiome, Intestinal,Microbiota, Gastrointestinal,Microbiota, Gut,Microbiota, Intestinal,Microflora, Gastrointestinal,Microflora, Gut,Microflora, Intestinal

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