In the last decades the demand of information and criteria, suitable for connecting products to their production regions, is becoming more urgent in order to protect the qualitative high level productions by forgery. Wine is one of the products that could benefit of a scientific system of analysis able to define its production area. Features of the association between wine and territory is not only related to pedological but also to geographical aspects. Currently several studies to define markers, such as isotopic ratios of O, C, and N, able to identify types of wine has been carried out, but they are not suitable to univocally define a specific type of wine in particular due to the high variability of some factors (temperature, age of vineyard, period of such us isotopic…). The aim of this work is to identify grape’s characteristic parameters in the Euganei Hills area (NE of Italy) considering that they have to be directly related to in soils and than in vines. Euganei Hills are an ideal test site because in this zone there is a high quantity of vines farms in soils with an high geochemical heterogeneity. Concentration of major (Si, Ti, Al, Fe, Mn, Mg, Ca, Na, K, P) and trace elements (Ba, Ce, Co, Cr, La, Nb, Ni, Pb, Rb, Sr, Th, V, Y, Zn, Zr, Cu, Ga, Nd, S, Sc) on 20 samples of soils (collected in a range of 30-40 cm of depth) and corresponding 20 samples of grapes has been analyzed by XRF. Moreover ICP-MS analysis has been carried out on wine grapes samples, with more attention on rare earth elements. In the investigated areas the grapes have shown typical concentration ratios of some trace and ultratrace elements suitable to identify the production areas.
Trace and ultratrace elements in grapes: Possible applications for geographical traceability
VACCARO, Carmela;MARROCCHINO, Elena;TASSINARI, Renzo
2010
Abstract
In the last decades the demand of information and criteria, suitable for connecting products to their production regions, is becoming more urgent in order to protect the qualitative high level productions by forgery. Wine is one of the products that could benefit of a scientific system of analysis able to define its production area. Features of the association between wine and territory is not only related to pedological but also to geographical aspects. Currently several studies to define markers, such as isotopic ratios of O, C, and N, able to identify types of wine has been carried out, but they are not suitable to univocally define a specific type of wine in particular due to the high variability of some factors (temperature, age of vineyard, period of such us isotopic…). The aim of this work is to identify grape’s characteristic parameters in the Euganei Hills area (NE of Italy) considering that they have to be directly related to in soils and than in vines. Euganei Hills are an ideal test site because in this zone there is a high quantity of vines farms in soils with an high geochemical heterogeneity. Concentration of major (Si, Ti, Al, Fe, Mn, Mg, Ca, Na, K, P) and trace elements (Ba, Ce, Co, Cr, La, Nb, Ni, Pb, Rb, Sr, Th, V, Y, Zn, Zr, Cu, Ga, Nd, S, Sc) on 20 samples of soils (collected in a range of 30-40 cm of depth) and corresponding 20 samples of grapes has been analyzed by XRF. Moreover ICP-MS analysis has been carried out on wine grapes samples, with more attention on rare earth elements. In the investigated areas the grapes have shown typical concentration ratios of some trace and ultratrace elements suitable to identify the production areas.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
