title: Phenolic profile of hazelnut (Corylus avellana L.) leaves cultivars grown in Portugal.
abstract: In this study, phenolic compounds of hazelnut leaves of 10 different cultivars with the same cultural, geographical, geological and climatic conditions were analyzed by HPLC/DAD and HPLC/DAD/MS/MS - ESI. Eight phenolic compounds (3-caffeoylquinic acid, 5-caffeoylquinic acid, caffeoyltartaric acid, p-coumaroyltartaric acid, myricetin 3-rhamnoside, quercetin 3-glycoside, quercetin 3-rhamnoside and kaempferol 3-rhamnoside) were identified and quantified. All of the analyzed samples showed a similar phenolic profile, in which myricetin 3-rhamnoside and quercetin 3-rhamnoside were the major compounds and caffeoyltartaric and p-coumaroyltartaric acids were present in vestigial amounts.
authors.affiliation: REQUIMTE, Serviço de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, R Anibal Cunha, 4050-047 Porto, Portugal.
authors.forename: Joana S
authors.initials: JS
authors.lastname: Amaral
authors.forename: Federico
authors.initials: F
authors.lastname: Ferreres
authors.forename: Paula B
authors.initials: PB
authors.lastname: Andrade
authors.forename: Patrícia
authors.initials: P
authors.lastname: Valentão
authors.forename: Cristina
authors.initials: C
authors.lastname: Pinheiro
authors.forename: Alberto
authors.initials: A
authors.lastname: Santos
authors.forename: Rosa
authors.initials: R
authors.lastname: Seabra
mesh_terms: D002851:Chromatography, High Pressure Liquid; D031211:Corylus / Q000737:chemistry* / Q000254:growth & development; D013058:Mass Spectrometry; D010636:Phenols / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D010636:Phenols