title: Analysis and quantification of flavonoidic compounds from Portuguese olive (Olea europaea L.) leaf cultivars.
abstract: Twenty three samples of 18 Portuguese olive leaf cultivars were analysed by a reversed-phase HPLC/DAD procedure and eight flavonoidic compounds were identified and quantified (luteolin 7,4'-O-diglucoside, luteolin 7-O-glucoside, rutin, apigenin 7-O-rutinoside, luteolin 4'-O-glucoside, luteolin, apigenin and diosmetin). Luteolin 7,4'-O-diglucoside and luteolin 4'-O-glucoside were identified by HPLC/DAD/MS/MS - ESI. The studied olive leaf samples showed a common phenolic pattern, in which luteolin 4'-O-glucoside was almost always the major compound.
authors.affiliation: Escola Superior Agrária, Instituto Politécnico de Bragança, Quinta de Sta Apolónia, 5300 Bragança, Portugal.
authors.forename: Julieta
authors.initials: J
authors.lastname: Meirinhos
authors.forename: Branca M
authors.initials: BM
authors.lastname: Silva
authors.forename: Patrícia
authors.initials: P
authors.lastname: Valentão
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Seabra
authors.forename: José A
authors.initials: JA
authors.lastname: Pereira
authors.forename: Alberto
authors.initials: A
authors.lastname: Dias
authors.forename: Paula B
authors.initials: PB
authors.lastname: Andrade
authors.forename: Federico
authors.initials: F
authors.lastname: Ferreres
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000032:analysis*; D013058:Mass Spectrometry; D031658:Olea / Q000737:chemistry* / Q000254:growth & development
chemical_list: D005419:Flavonoids