title: Identification by HPLC-PAD-MS and quantification by HPLC-PAD of phenylethanoid glycosides of five Phlomis species.
abstract: The qualitative and quantitative determination of phenylethanoid glycosides in methanolic extracts of five species of the genus Phlomis (Lamiaceae) has been investigated using a new reversed-phase HPLC method combined with photodiode-array detection and electrospray/MS analysis. Forsythoside B, verbascoside, samioside, alyssonoside, isoverbascoside, leucosceptosides A and B and martynoside were detected. The quantification of the above constituents was performed using echinacoside as internal standard. Knowledge of the content of phenylethanoid glycosides contributes to the chemotaxonomy of the genus.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University TR-06100 Ankara, Turkey. hasankbekmez@yahoo.com
authors.forename: Hasan
authors.initials: H
authors.lastname: Kirmizibekmez
authors.forename: Paola
authors.initials: P
authors.lastname: Montoro
authors.forename: Sonia
authors.initials: S
authors.lastname: Piacente
authors.forename: Cosimo
authors.initials: C
authors.lastname: Pizza
authors.forename: Ali
authors.initials: A
authors.lastname: Dönmez
authors.forename: Ihsan
authors.initials: I
authors.lastname: Caliş
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D031345:Phlomis / Q000737:chemistry*; D010777:Photochemistry; D035261:Plant Components, Aerial / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D006027:Glycosides