Effect of in vitro simulated digestion and fecal fermentation on Boletus auripes polysaccharide characteristics and intestinal flora
Copyright © 2023 Elsevier B.V. All rights reserved..
Boletus auripes is edible and medicinal boletus mushrooms rich in diverse nutrients and bioactive compounds, of which indigestible dietary polysaccharides are the most abundant compounds involved the regulation of gut microbes. However, the physicochemical, digestive, and fermentation characteristics of Boletus auripes polysaccharide (BAP) are not well studied. This study aimed to investigate the influence of different digestive stages on BAP's physicochemical characteristics and biological activities, and its effect on intestinal flora. We found that mannose (0.23 %), glucose (0.31 %), galactose (0.17 %), and fucose (0.19 %) were the main monosaccharides of BAP, with a high-molecular-weight (Mw) and a low-Mw fraction of 2084.83 and 62.93 kDa, respectively. During the course of digestion, there were slight alterations in the chemical composition, monosaccharide composition, and Mw of BAP. Despite these changes, the fundamental structural features of BAP remained largely unaffected. Moreover, the antioxidant and hypoglycemic activities of BAP were weakened under simulated saliva-gastrointestinal digestion. However, gut microbiota decomposed and utilized BAP to generate various short-chain fatty acids during fermentation, which decreased the pH of fecal cultures. Meanwhile, BAP modulated the gut microbiota composition and increased the relative abundance of Bacteroidetes. These findings suggest that BAP have potential for maintaining intestinal health and protecting against interrelated diseases.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:249 |
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| Enthalten in: |
International journal of biological macromolecules - 249(2023) vom: 30. Sept., Seite 126461 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Luo, Qingying [VerfasserIn] |
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| Links: |
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| Themen: |
Boletus auripes polysaccharide |
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| Anmerkungen: |
Date Completed 27.09.2023 Date Revised 27.09.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ijbiomac.2023.126461 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Boletus auripes is edible and medicinal boletus mushrooms rich in diverse nutrients and bioactive compounds, of which indigestible dietary polysaccharides are the most abundant compounds involved the regulation of gut microbes. However, the physicochemical, digestive, and fermentation characteristics of Boletus auripes polysaccharide (BAP) are not well studied. This study aimed to investigate the influence of different digestive stages on BAP's physicochemical characteristics and biological activities, and its effect on intestinal flora. We found that mannose (0.23 %), glucose (0.31 %), galactose (0.17 %), and fucose (0.19 %) were the main monosaccharides of BAP, with a high-molecular-weight (Mw) and a low-Mw fraction of 2084.83 and 62.93 kDa, respectively. During the course of digestion, there were slight alterations in the chemical composition, monosaccharide composition, and Mw of BAP. Despite these changes, the fundamental structural features of BAP remained largely unaffected. Moreover, the antioxidant and hypoglycemic activities of BAP were weakened under simulated saliva-gastrointestinal digestion. However, gut microbiota decomposed and utilized BAP to generate various short-chain fatty acids during fermentation, which decreased the pH of fecal cultures. Meanwhile, BAP modulated the gut microbiota composition and increased the relative abundance of Bacteroidetes. These findings suggest that BAP have potential for maintaining intestinal health and protecting against interrelated diseases | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Boletus auripes polysaccharide | |
| 650 | 4 | |a Fecal fermentation | |
| 650 | 4 | |a In vitro simulated digestion | |
| 650 | 7 | |a Polysaccharides |2 NLM | |
| 650 | 7 | |a Fatty Acids, Volatile |2 NLM | |
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| 700 | 1 | |a Li, Xuejiao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Hongyu |e verfasserin |4 aut | |
| 700 | 1 | |a Kong, Keyang |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Cheng |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Zhengfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Caixia |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Saiyan |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Wenjuan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiaolin |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yuntao |e verfasserin |4 aut | |
| 700 | 1 | |a Zeng, Zhen |e verfasserin |4 aut | |
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