Polyphenols from leaves of Olea europaea
- Author:
Xiao-Fei WANG
1
Author Information
1. Key Laboratory of Chemistry of Northwestern Plant Resources
- Publication Type:Journal Article
- Keywords:
1H-2-benzopyran-6,7-diol;
3,4-dihydroxyl- benzoic acid;
Eriodictyol;
Olea europaea L.;
Polyphenols
- From:
Chinese Traditional and Herbal Drugs
2011;42(5):848-851
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the polyphenols from the leaves of Olea europaea. Methods: The polyphenols from ethyl acetate fraction were separated and purified by silica chromatographic method and identified by spectroscopic analysis. Results: In combination with the data from literatures, the structure of 15 polyphenols had been elucidated on the basis of various spectroscopic methods, including tyrosol (1), hydroxytyrosol (2), hydroxytyrosol acetate (3), 1H-2-benzopyran-6,7-diol (4), 3,4-dihydroxyl-benzoic acid (5), 3-methoxyl-4-hydroxyl benzoic acid (6), isorhamnetin (7), eriodictyol (8), taxifolin (9), quercetin (10), luteolin (11), ligstroside (12), oleuropein (13), apigenin-7-O-glucoside (14), and luteolin-7-O-glucoside (15). Conclusion: Compounds 4-9 are isolated from this plant for the first time.
