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Differentiation of Vitis vinifera varieties by MALDI‐MS analysis of the grape seed proteins
Author(s) -
Pesavento Ivana Chiara,
Bertazzo Antonella,
Flamini Riccardo,
Vedova Antonio Dalla,
De Rosso Mirko,
Seraglia Roberta,
Traldi Pietro
Publication year - 2008
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1295
Subject(s) - chemistry , vitis vinifera , grape seed , grape seed extract , chromatography , botany , food science , biology , medicine , alternative medicine , pathology
Until now the study of pathogenic related proteins in grape juice and wine, performed by ESI‐MS, LC/ESI‐MS, and MALDI/MS, has been proposed for differentiation of varieties. In fact, chitinases and thaumatin‐like proteins persist through the vinification process and cause hazes and sediments in bottled wines. An additional instrument, potentially suitable for the grape varieties differentiation, has been developed by MALDI/MS for the grape seed protein analysis. The hydrosoluble protein profiles of seeds extract from three different Vitis vinifera grape (red and white) varieties were analyzed and compared. In order to evaluate the environmental conditions and harvest effects, the seed protein profiles of one grape variety from different locations and harvests were studied. Copyright © 2007 John Wiley & Sons, Ltd.