Polyphenol metabolomics of twenty Italian red grape varieties
1 Dept. of Sustainable Crop Production, Università Cattolica S.C., via Emilia Parmense 84, 29122 Piacenza, Italy
2 Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per la viticoltura (CREA-VIT), viale XXVIII Aprile 26, 31015 Conegliano, Italy
a Corresponding author: firstname.lastname@example.org
“Suspect screening analysis”method to study grape metabolomics, was performed. This method is a middle-way “targeted” and “untargeted”approach aiming at identifying the largest number of metabolites in grape samples. A new database of putative grape and wine metabolites (GrapeMetabolomics), which currently contains around 1,100 compounds, was constructed by CREA at Conegliano. By performing high-resolution mass spectrometry analysis of the grape extract in both positive and negative ionization mode, averaging 320-450 putative compounds are identified. Most of them are grape polyphenols, such as anthocyanins, flavonols and stilbene derivatives. By performing PCA and Cluster Analysis the composition in anthocyanins and flavonols of 20 Italian red grape varieties, was studied.
© The Authors, published by EDP Sciences 2016
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