title: A multiresidual method for the simultaneous determination of the main glycoalkaloids and flavonoids in fresh and processed tomato (Solanum lycopersicum L.) by LC-DAD-MS/MS.
abstract: A new multiresidual LC-DAD-MS/MS method for the simultaneous detection of the major flavonoids and glycoalkaloids occurring in tomatoes has been developed and applied to the characterization of seven varieties of raw tomatoes grown in Italy and to their processed products. The new method allowed to determine rapidly the concentration of these secondary metabolites in a single analysis, showing that their content can be quite variable among the different varieties considered. On the contrary, a great depletion in glycoalkaloids and flavonoids is observed after processing, probably due to the harsh thermal treatment, which prevents the recognition of the varieties in the processed products.
authors.affiliation: Dipartimento di Chimica Organica e Industriale, Università di Parma, Parma, Italy.
authors.forename: Chiara
authors.initials: C
authors.lastname: Dall'Asta
authors.forename: Claudia
authors.initials: C
authors.lastname: Falavigna
authors.forename: Gianni
authors.initials: G
authors.lastname: Galaverna
authors.forename: Stefano
authors.initials: S
authors.lastname: Sforza
authors.forename: Arnaldo
authors.initials: A
authors.lastname: Dossena
authors.forename: Rosangela
authors.initials: R
authors.lastname: Marchelli
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D002853:Chromatography, Liquid / Q000379:methods*; D005419:Flavonoids / Q000032:analysis*; D018551:Solanum lycopersicum / Q000737:chemistry*; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000470:Alkaloids; D005419:Flavonoids