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It is difficult for polysaccharides to be directly absorbed through the intestine, which implies other utilization mechanisms involved in the bioactivity performance of polysaccharide. In present studies, the multi‐omics approach was applied to investigate the impacts of longan polysaccharide on mouse intestinal microbiome and the interaction between the polysaccharide‐derived microbiome and host immune system. According to the result, the longan polysaccharide showed a significant improvement in the typical intestinal immunity index of mice. Meanwhile, at the taxonomy level, the intestinal microbiota from the control group and polysaccharide group were highly distinct in organismal structure. At the functional level, a significant decline in the microbial metabolites of pyruvate, butanoate fructose and mannose in the control group was found. Additionally, a significant increase was observed in the succinic acid and the short chain fatty acid, including acetic acid, propionic acid and butyric acid, in the polysaccharide group. Furthermore, the multi‐omic based network analysis indicated that the intake of longan polysaccharide resulted in the changes of the intestinal microbiota as well as the gut metabolites, which ledto the enhancement of host's immune function under the stress conditions. These results indicated the polysaccharide‐derived changes in intestinal microbiota were involved in the immunomodulatory activities.
This article is protected by copyright. All rights reserved
| Authors: | Jiachao Zhang, Guangmei Yang, Yazhou Wen, Sixin Liu, Congfa Li, Ruili Yang, Wu Li | |
| Journal: | Molecular Nutrition & Food Research | |
| Year: | 2017 | |
| Pages: | n/a | |
| DOI: | 10.1002/mnfr.201700466 | |
| Publication date: | 05-Jul-2017 |
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