数字农科院2.0

Gut microbial fermentation promotes the intestinal anti-inflammatory activity of Chinese yam polysaccharides

文献类型： 外文期刊

作者： Bai Y.; Zhou Y.; Zhang R.; Chen Y.; Wang F.; Zhang M.

作者机构：

关键词： Fatty acids; Polysaccharides; Anti-inflammatories; Anti-inflammatory effects; Chinese yam polysaccharide; Digestion and fermentation; Gastrointestinal digestion; Gut microbiota; Intestinal barriers; Microbial fermentation; Polysaccharide-gut microbiota interaction; Prebiotic effect; Fermentation

期刊名称： Food Chemistry

ISSN： 0308-8146

年卷期： 2023 年 402 卷

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： Plant polysaccharides possess many health-promoting properties, which are closely related to the digestion, absorption and utilization of polysaccharides in the host. The characteristic changes in Chinese yam polysaccharide (CYP) during simulated gastrointestinal digestion and faecal fermentation, as well as the intestinal anti-inflammatory effects of CYP and fermented CYP, were studied. The molecular weight of CYP remained unchanged during gastrointestinal digestion. After 24 h of faecal fermentation, free glucose and mannose released from CYP were utilized by gut microbiota, and the production of short-chain fatty acids increased. Simultaneously, CYP improved the growth of Bifidobacterium and Megasphaera. Compared with CYP, faecal fermented CYP exhibited greater suppression of anti-inflammatory mediators and increased intestinal tight junction expression in LPS-stimulated coculture Caco-2/Raw264.7 cells. The obtained results reveal that the role of CYP in promoting gut health is closely related to the interactions between CYP and gut microbes, and CYP has potential as an anti-inflammatory adjuvant in enteritis therapy. © 2022 Elsevier Ltd

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