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- Title
Compositions and Antioxidant Activity of Tea Polysaccharides Extracted from Different Tea (Camellia sinensis L.) Varieties.
- Authors
Xiao, Kunyue; Shi, Yutao; Liu, Sisi; Chen, Yuqiong; Ni, Dejiang; Yu, Zhi
- Abstract
Tea polysaccharide (TPS) is a bioactive compound extracted from tea. It has raised great interest among researchers due to its bioactivity. However, few studies focused on the diversity of TPS in its compositions and antioxidant activity. This study collected 140 different tea varieties from four tea germplasm gardens in China, and their TPSs in tea shoots were extracted. The extraction efficiency, composition contents, including neutral sugar, uronic acid, protein, and tea polyphenols, and the scavenging abilities of hydroxyl radical (·OH) and superoxide radical (O2-·) of 140 TPSs were determined and analyzed. The results showed significant differences in the compositions and antioxidant activities of TPS extracted from different tea varieties. By applying hierarchical clustering analysis (HCA), we selected nine tea varieties with high TPS extraction efficiency and 26 kinds of TPS with high antioxidant capacity.
- Subjects
CHINA; TEA; TEA extracts; POLYPHENOLS; PLANT polyphenols; HYDROXYL group; HIERARCHICAL clustering (Cluster analysis); URONIC acids; OXIDANT status
- Publication
Foods, 2023, Vol 12, Issue 19, p3584
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods12193584