title: Liquid chromatographic/electrospray ionization tandem mass spectrometric study of polyphenolic composition of four cultivars of Fragaria vesca L. berries and their comparative evaluation.
abstract: High-performance liquid chromatography coupled with ion spray mass spectrometry in the tandem mode with both negative and positive ionization was used for investigating a variety of polyphenolic compounds in four genotypes of Fragaria vesca berries. About 60 phenolic compounds belonging to the compound classes of phenolic acids, ellagitannins, ellagic acid derivatives, flavonols, monomeric and oligomeric flavanols, dihydrochalcones and anthocyanins were reported, providing for the first time a quite complete picture of polyphenolic composition of F. vesca berries. Some of the polyphenols herein investigated, such as a tris-galloyl-hexahydroxydiphenoyl-hexose, two castalagin/vescalagin-like isomers and peonidin-malonylglucoside, were described for the first time. Principal component analysis applied on original HPLC-MS/MS data, acquired in multiple reaction monitoring mode, successfully discriminated the four investigated cultivars on the basis of their polyphenolic composition, highlighting the fundamental role of mass spectrometry for food characterization.
authors.affiliation: Department of Chemistry, Via della Lastruccia, 3-50019, Sesto Fiorentino, Florence, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: Del Bubba
authors.forename: Leonardo
authors.initials: L
authors.lastname: Checchini
authors.forename: Ugo
authors.initials: U
authors.lastname: Chiuminatto
authors.forename: Saer
authors.initials: S
authors.lastname: Doumett
authors.forename: Donatella
authors.initials: D
authors.lastname: Fibbi
authors.forename: Edgardo
authors.initials: E
authors.lastname: Giordani
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003373:Coumaric Acids / Q000032:analysis*; D005419:Flavonoids / Q000032:analysis*; D031985:Fragaria / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry*; D062385:Hydroxybenzoates / Q000032:analysis*; D025341:Principal Component Analysis; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods; D053719:Tandem Mass Spectrometry / Q000379:methods
chemical_list: D003373:Coumaric Acids; D005419:Flavonoids; D062385:Hydroxybenzoates