title: Rapid fingerprinting of red wines by MALDI mass spectrometry.
abstract: Here we report a simple and fast method for wine fingerprinting based on direct matrix-assisted laser desorption/ionization (MALDI) mass spectrometry analysis of different red wine samples, useful for batch-to-batch analysis and for the detection of key compounds even in trace amounts which may vary from vintage to vintage, and from one treatment to another one. A series of 20 samples from different wines were subjected to MALDI mass spectrometry. We found that 2,5-dihydroxybenzoic acid is far superior with respect to all the matrices tested To the best of our knowledge this is the first application of an effective wine profiling not limited to detection of anthocyanins. More than 80 molecular species were detected. Moreover, qualitative and quantitative differences were observed, owing to the nature and relative abundance of different chemical compounds among the wines.
authors.affiliation: Department of Organic Chemistry and Biochemistry, Federico II University of Naples, 80126 Naples, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Carpentieri
authors.forename: Gennaro
authors.initials: G
authors.lastname: Marino
authors.forename: Angela
authors.initials: A
authors.lastname: Amoresano
mesh_terms: D000872:Anthocyanins / Q000032:analysis; D005841:Gentisates / Q000032:analysis; D012680:Sensitivity and Specificity; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D014920:Wine / Q000032:analysis* / Q000145:classification
chemical_list: D000872:Anthocyanins; D005841:Gentisates; C010925:2,5-dihydroxybenzoic acid