文献类型： 外文期刊
作者： Bai, Junying 1 ; Li, Yan 1 ; Li, Tingting 2 ; Zhang, Wenhui 3 ; Fan, Mingcong 1 ; Zhang, Kuiliang 1 ; Qian, Haifeng 1 ; Zhang, Hui 1 ; Qi, Xiguang 1 ; Wang, Li 1 ;
作者机构： 1.Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
2.Nanjing Forestry Univ, Coll Light Ind & Food Engn, Dept Food Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China
3.Tibet Acad Agr & Anim Husb Sci, Inst Food Sci, Lasa 850000, Peoples R China
关键词： soluble dietary fibers; SCFAs; gut microbiota; catabolism; biosynthesis
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）
ISSN： 0021-8561
年卷期： 2021 年 69 卷 26 期
页码：
收录情况： SCI
摘要： 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.
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