Analysis by high-performance liquid chromatography diode array detection mass spectrometry of phenolic compounds in fruit of Eucalyptus globulus cultivated in Algeria.
A method based on high-performance liquid chromatography coupled with diode array detection and electrospray ionization mass spectrometry (HPLC-DAD-ESI-MS) following fractionation by chromatography on a Sephadex LH-20 column has been developed to determine the phenolic composition of fruit of Eucalyptus globulus growing in Algeria. The presence of 18 gallotannins, 26 ellagitannins, and 2 flavonols was established. Tentative identification is provided for these compounds on the basis of UV-visible spectra and mass spectrometry data. Most compounds described in this study have not previously detected in fruit of E. globulus. Moreover, this is the first report of methyl digalloyl diglucose, 3,3'-O-dimethylellagic acid 4-O-β-glucopyranoside, ellagic acid hexose, methyl ellagic acid pentose, methyltetragalloylglucose, and valoneic acid isomers (sanguisorbic, flavogallic acid dilactone) in the genus Eucalyptus. Quantitatively, ellagic acid and its derivatives, including ellagitannins, are largely predominant.
Faculty of Nature and Life Sciences, 3bs Laboratory, A. Mira University, Bejaia 06000, Algeria.
Lila
L
Boulekbache-Makhlouf
Emmanuelle
E
Meudec
Mohamed
M
Chibane
Jean-Paul
JP
Mazauric
Sakina
S
Slimani
Max
M
Henry
Veronique
V
Cheynier
Khodir
K
Madani
D000462:Algeria; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005052:Eucalyptus / Q000737:chemistry* / Q000254:growth & development; D005638:Fruit / Q000737:chemistry* / Q000254:growth & development; D010636:Phenols / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000295:instrumentation / Q000379:methods*
D010636:Phenols; D010936:Plant Extracts