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

文献类型： 外文期刊

作者： Bai, Yajuan 1 ; Zhou, Yue 3 ; Zhang, Ruifen 2 ; Chen, Yanxia 2 ; Wang, Fengzhong 1 ; Zhang, Mingwei 2 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Proc, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China

2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rural, Guangzhou 510610, Peoples R China

3.Minzu Univ China, Coll Life & Environm Sci, Key Lab Ecol & Environm Minor Areas, Natl Ethn Affairs Commiss China, Beijing 100081, Peoples R China

4.Hainan Acad Agr Sci, Sanya Inst, Haikou 572025, Peoples R China

5.Chinese Acad Agr Sci, Inst Food Sci & Technol, Beijing 100193, Peoples R China

6.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Peoples R China

关键词： Chinese yam polysaccharide; Digestion and fermentation; Polysaccharide -gut microbiota interaction; Anti-inflammatory effect; Intestinal barrier; Prebiotic effect

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2023 年 402 卷

页码：

收录情况： SCI

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.

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