Structural Characterization and In Vitro Antioxidant, Hypoglycemic and Hypolipemic Activities of a Natural Polysaccharide from Liupao Tea

被引：8

作者：

Wei, Lu ^{[1
,2
]}

Huang, Li ^{[1
]}

Du, Lijuan ^{[2
]}

Sun, Qinju ^{[2
]}

Chen, Can ^{[1
]}

Tang, Jie ^{[1
]}

Teng, Jianwen ^{[1
]}

Wei, Baoyao ^{[1
]}

机构：

[1] Guangxi Univ, 1College Light Ind & Food Engn, Nanning 530004, Peoples R China

[2] Guangxi Vocat Univ Agr, 2Institute Food & Pharmaceut Sci, Nanning 530007, Peoples R China

来源：

FOODS | 2023年 / 12卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Liupao tea polysaccharide; structure; biological activity; in vitro; WATER-SOLUBLE POLYSACCHARIDE; ANTITUMOR-ACTIVITY; ALPHA-GLUCOSIDASE; ELUCIDATION; BINDING; ARABINOGALACTAN; EXTRACTION; LEAVES; ACIDS;

D O I：

10.3390/foods12112226

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

This study extracted and purified a natural polysaccharide (TPS-5) that has a molecular weight of 48.289 kDa from Liupao tea, a typical dark tea with many benefits to human health. TPS-5 was characterized as a pectin-type acidic polysaccharide. It has a backbone composed of -> 2,4)- alpha- L-Rhap-(1) -> 4)- alpha- D-GalAp-(1) ->, with a branch composed of -> 5)- alpha- L-Ara(1 -> 5,3)- alpha- L-Ara-(1 -> 3)- beta- D-Gal-(1 -> 3,6)- beta- D-Galp-(1) ->. The in vitro biological activity evaluation illustrated that TPS-5 has free radical scavenging, ferric-ion-reducing, digestive enzyme inhibitory, and bile-salt-binding abilities. These results suggest that TPS-5 from Liupao tea has potential applications in functional foods or medicinal products.

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页数：20

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