Monitoring of wine aging process by electrospray ionization mass spectrometry

The characterization of wine samples by direct insertion electrospray ionization mass spectrometry (ESI-MS), without pre-treatment or chromatographic separation, in a process denominated fingerprinting, has been applied to several samples of wine produced with grapes of the Pinot noir, Merlot and Cabernet Sauvignon varieties from the state o Rio Grande do Sul, in Brazil. The ESI-MS fingerprints of the samples detected changes which occurred during the aging process in the three grape varieties. Principal Component Analysis (PCA) of the negative ion mode fingerprints was used to group the samples, pinpoint the main changes in their composition, and indicate marker ions for each group of samples.

Bibliographic Details

Main Authors:	Sawaya,Alexandra Christine Helena Frankland, Catharino,Rodrigo Ramos, Facco,Elizete Maria Pesamosca, Fogaça,Aline, Godoy,Helena Teixeira, Daudt,Carlos Eugenio, Eberlin,Marcos Nogueira
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Ciência e Tecnologia de Alimentos 2011
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300027
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