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Adsorption,in vitro digestion and human gut microbiota regulation characteristics of three Poria cocos polysaccharides

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Food Science and Human Wellness 2024年第3期13卷 1685-1697页

作者： Fangming Zhang Hui Zheng Tao Zheng Pan Xu Yao Xu Yuxin Cao Fan Jia Yiqiong Zeng Yubing Fan Kai He Xinwen Dai Fengfei Hou Yong Yang College of Pharmacy Hunan University of Chinese MedicineChangsha 410208China School of Pharmaceutical Science Hunan University of MedicineHuaihua 418000China Hunan Fuling Engineering Technology Research Center Huaihua 418100China

Poria cocos(PC)is a famous traditional Chinese medicine(TCM)and a widely used healthcare ingredient,which has antiobesity,enhancing immunity and improving sleep ***,only water-soluble poria polysaccharide(WSP)is extracted and applied for clinical application,while insoluble polysaccharide(alkali-soluble poria polysaccharide,ASP)is discarded as herb ***,the whole PC has also been historically utilized as functional herbal *** the beneficial role of dietary fiber and the traditional use of PC,ASP may also contribute substantially to the therapy function of *** to WSP,little attention has been paid to ASP and ASP modified product carboxymethyl poria polysaccharide(CMP)which has been used as an antitumor adjuvant *** this study,the oil,cholesterol,metal ions and polyphenols adsorption ability,in vitro simulated digestive and the gut microbiota fermentation characteristics of WSP,ASP and CMP were studied to evaluate the functional values of three *** polysaccharides(PCPs).The results showed that all three PCPs had good adsorption capacity on cholesterol,polyphenols and metal ions(Cd^(2+)/Zn^(2+)/Mg^(2+)),among which ASP showed the highest capacity than WSP and *** adsorption capacity of all three PCPs on heavy metal ions(Cd^(2+)/Zn^(2+))was stronger than that of non-heavy metal ions(Mg^(2+));The in vitro digestibility of all three PCPs was very low,but WSP was slightly higher than ASP and CMP;Moreover,the indigestible residue of all three PCPs could improve the richness and diversity of gut microbiota,among which ASP had the greatest *** general,ASP and CMP could significantly promote the proliferation of some probiotics and inhibit the growth of some harmful *** gut microbiota diversity of CMP was reduced,but the richness of probiotics,especially Parabacteroides distasonis was significantly enhanced compared with the ASP group,and the growth of harmful bacteria Klebsiella pneumoniae was inh

关键词： Poria cocos polysaccharides Alkali-soluble poria polysaccharide Carboxymethyl poria polysaccharide Adsorption characteristics In vitro simulated digestion in vitro simulated gut microbiota fermentation

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