Structural characterization and prebiotic potential of polysaccharides from Polygonatum sibiricum

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外文摘要：Polygonatum sibiricum has been widely used due to its excellent biological activities.We prepared a novel polysaccharide from P.sibiricum(PSP)in this study.According a monosaccharide composition analysis,PSP was mainly composed of fructose and glucose with a molar percentage of 93.81:5.12.The main linkage types were identified as α-D-Glcp-1→ and →2-β-D-Fruf-1→.The molecular weight of PSP showed no significant change after simulated salivary and gastrointestinal digestion.However,PSP could be broken down by intestinal bacteria.Our findings revealed that PSP administration increased the abundance of probiotics such as Bifidobacterium.Furthermore,the results showed that gut microbes could utilize PSP to produce short-chain fatty acids including acetic acid,propionic acid,and butyric acid.Also,the PSP fermentation broth displayed an excellent scavenging effect on free radicals,including 2,2-diphenyl-1-picrylhydrazyl radical,superoxide radical,and hydroxyl radical.In summary,this study will help to promote the application of PSP as prebiotics in functional food and the medical industry.

外文关键词：

Dietary polysaccharidesPrebioticGut microbiotaShort-chain fatty acids

作者：

Zihan Qi、Tiexiang Gao、Jingjing Li、Shuhan Zhou、Zhigang Zhang、Mingzhu Yin、Haiming Hu、Hongtao Liu

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作者单位：

College of Basic Medical Sciences,Hubei University of Chinese Medicine,Wuhan 430065,China

College of Pharmacy,Hubei University of Chinese Medicine,Wuhan 430065,China

基金：

Department of Science and Technology of Hubei ProvinceMajor Science and Technology Project in Yunnan Province湖北省教委项目Knowledge Innovation Program of Wuhan-Shuguang ProjectHealth Commission of Hubei Province of ChinaHealth Commission of Hubei Province of China

项目编号：

2021CFA014202102AE090042D202120032022020801010420ZY2021Z005ZY2019Q003

出版年：

2024

DOI：

10.26599/FSHW.2022.9250184

食品科学与人类健康(英文)

CSTPCD

ISSN：

年,卷(期)：2024.13(4)

参考文献量63