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Direct Identification of Phenolic Glucosides from Olive Leaf Extracts by Atmospheric Pressure Ionization Tandem Mass Spectrometry
Author(s) -
De Nino Antonio,
Lombardo Nicola,
Perri Enzo,
Procopio Antonio,
Raffaelli Andrea,
Sindona Giovanni
Publication year - 1997
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199705)32:5<533::aid-jms506>3.0.co;2-9
Subject(s) - chemistry , oleuropein , hydroxytyrosol , olea , olive leaf , chromatography , tandem mass spectrometry , mass spectrometry , disaccharide , electrospray ionization , glucoside , olive oil , polyphenol , organic chemistry , food science , botany , antioxidant , medicine , alternative medicine , pathology , biology
Pneumatically assisted electrospray (or ionspray) coupled with liquid chromatography was applied to the identification 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. © 1977 by John Wiley & Sons, Ltd.