Chemical constituents of Jasminum giraldii and their antioxidant activity.
- Author:
Xiu-Peng ZHANG
;
Hui QIN
;
Fang YANG
;
Jiang CHAI
;
Xin WANG
;
Xiao-Mei SONG
;
Qi-Bing MEI
;
Feng FENG
;
Zheng-Gang YUE
- Publication Type:Journal Article
- MeSH:
Antioxidants;
chemistry;
isolation & purification;
Drugs, Chinese Herbal;
chemistry;
isolation & purification;
Jasminum;
chemistry;
Magnetic Resonance Spectroscopy;
Molecular Structure;
Spectrometry, Mass, Electrospray Ionization
- From:
China Journal of Chinese Materia Medica
2014;39(11):2029-2033
- CountryChina
- Language:Chinese
-
Abstract:
Ten compounds were isolated from the barks of Jasminum giraldii by means of various of chromatographic techniques such as silica gel, Sephadex LH-20 and Rp-HPLC. Their structures were identified by spectroscopic data analysis as (+)-medioresinol (1), (+) -syringaresinol (2), syringaresinol-4'-O-beta-D-glucopyranoside (3), oleanic acid (4), 3-methoxy-4-hydroxy-trans-cinnamaldehyde (5), trans-sinapaldehyde (6), syringaldehyde (7), 1-(4-methoxy -phenyl) -ethanol (8), trans-cinnamic acid (9), and 4-(1-methoxyethyl) -phenol (10). Among them, compounds 1-3, 5-8 and 10 were isolated from the J. genus for the first time and compounds 4 and 9 were obtained from J. giraldii for the first time. In the DPPH free radical scavenging assay, compound 1 exhibited significant activity (IC50 55.1 micromol x L(-1)), compared with vitamin C(IC50 59.9 micromol x L(-1)); and compound 2 showed moderate activity (IC50 79.0 micromol x L(-1)), compared with 2, 6-di-tert-butyl4-methylphenol (IC50 236 micromol x L(-1)).
