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Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro

In this study, dynamic variations in physicochemical characteristics of polysaccharides from ‘Wuyi rock’ tea (WYP) at different simulated digestion and fecal fermentation stages in vitro were studied. Results revealed that physicochemical characteristics of WYP were slightly altered after the simula...

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Detalles Bibliográficos
Autores principales: Wu, Ding-Tao, Liu, Wen, Yuan, Qin, Gan, Ren-You, Hu, Yi-Chen, Wang, Sheng-Peng, Zou, Liang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8942832/
https://www.ncbi.nlm.nih.gov/pubmed/35342881
http://dx.doi.org/10.1016/j.fochx.2022.100288
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author Wu, Ding-Tao
Liu, Wen
Yuan, Qin
Gan, Ren-You
Hu, Yi-Chen
Wang, Sheng-Peng
Zou, Liang
author_facet Wu, Ding-Tao
Liu, Wen
Yuan, Qin
Gan, Ren-You
Hu, Yi-Chen
Wang, Sheng-Peng
Zou, Liang
author_sort Wu, Ding-Tao
collection PubMed
description In this study, dynamic variations in physicochemical characteristics of polysaccharides from ‘Wuyi rock’ tea (WYP) at different simulated digestion and fecal fermentation stages in vitro were studied. Results revealed that physicochemical characteristics of WYP were slightly altered after the simulated digestion in vitro, and its digestibility was about 8.38%. Conversely, physicochemical characteristics of the indigestible WYP, including reducing sugar, chemical composition, constituent monosaccharide, molecular weight, and FT-IR spectrum, were obviously altered after the fecal fermentation in vitro, and its fermentability was about 42.18%. Notably, the indigestible WYP could remarkably modulate the microbial composition via promoting the proliferation of profitable intestinal microbes, such as Bacteroides, Lactococcus, and Bifidobacterium. Moreover, it could also enhance the generation of short-chain fatty acids. The results showed that WYP was slightly digested in the gastrointestinal tract in vitro, but could be obviously utilized by intestinal microbiota, and might possess the potential to improve intestinal health.
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spelling pubmed-89428322022-03-25 Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro Wu, Ding-Tao Liu, Wen Yuan, Qin Gan, Ren-You Hu, Yi-Chen Wang, Sheng-Peng Zou, Liang Food Chem X Article(s) from the Special Issue on Advances on dietary polysaccharides and oligosaccharides: structure and bioactivity by Dr. Hussain and Dr. You In this study, dynamic variations in physicochemical characteristics of polysaccharides from ‘Wuyi rock’ tea (WYP) at different simulated digestion and fecal fermentation stages in vitro were studied. Results revealed that physicochemical characteristics of WYP were slightly altered after the simulated digestion in vitro, and its digestibility was about 8.38%. Conversely, physicochemical characteristics of the indigestible WYP, including reducing sugar, chemical composition, constituent monosaccharide, molecular weight, and FT-IR spectrum, were obviously altered after the fecal fermentation in vitro, and its fermentability was about 42.18%. Notably, the indigestible WYP could remarkably modulate the microbial composition via promoting the proliferation of profitable intestinal microbes, such as Bacteroides, Lactococcus, and Bifidobacterium. Moreover, it could also enhance the generation of short-chain fatty acids. The results showed that WYP was slightly digested in the gastrointestinal tract in vitro, but could be obviously utilized by intestinal microbiota, and might possess the potential to improve intestinal health. Elsevier 2022-03-19 /pmc/articles/PMC8942832/ /pubmed/35342881 http://dx.doi.org/10.1016/j.fochx.2022.100288 Text en © 2022 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article(s) from the Special Issue on Advances on dietary polysaccharides and oligosaccharides: structure and bioactivity by Dr. Hussain and Dr. You
Wu, Ding-Tao
Liu, Wen
Yuan, Qin
Gan, Ren-You
Hu, Yi-Chen
Wang, Sheng-Peng
Zou, Liang
Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title_full Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title_fullStr Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title_full_unstemmed Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title_short Dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
title_sort dynamic variations in physicochemical characteristics of oolong tea polysaccharides during simulated digestion and fecal fermentation in vitro
topic Article(s) from the Special Issue on Advances on dietary polysaccharides and oligosaccharides: structure and bioactivity by Dr. Hussain and Dr. You
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8942832/
https://www.ncbi.nlm.nih.gov/pubmed/35342881
http://dx.doi.org/10.1016/j.fochx.2022.100288
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