Abstract
Fourteen flavanols and flavonoid glycosides were isolated from the extracts of Oolong tea. Their structures were determined by spectral methods (MS and NMR) and compared with authentic samples. One of them is new to the constituents of tea. DPPH free radical scavenging activity was used to evaluate their antioxidant activity. The most active compounds were found to be compounds 1-6, compound 12 and the mixture of compounds 13 and 14.
| Original language | English |
|---|---|
| Pages (from-to) | 292-303 |
| Number of pages | 12 |
| Journal | ACS Symposium Series |
| Volume | 803 |
| State | Published - 2002 |
| Externally published | Yes |