✦ LIBER ✦

Direct Identification of Phenolic Glucosides from Olive Leaf Extracts by Atmospheric Pressure Ionization Tandem Mass Spectrometry

✍ Scribed by De Nino, Antonio; Lombardo, Nicola; Perri, Enzo; Procopio, Antonio; Raffaelli, Andrea; Sindona, Giovanni

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 447 KB
Volume: 32
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(199705)32:5<533::aid-jms506>3.0.co;2-9

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✦ Synopsis

Pneumatically assisted electrospray (or ionspray) coupled with liquid chromatography was applied to the identiÐcation of the phenolic glucoside content of olive leaf directly from the crude extracts. The mass spectra of the positive ions provide insights into the composition of the phenolic constituents. Oleuropein, ligstroside and a disaccharide containing the hydroxytyrosol moiety were found in olive leaf of Olea europea L. cv. Cassanese and their structures were thoroughly determined by tandem mass spectrometry.