| Literature DB >> 23871024 |
Caterina Durante1, Carlo Baschieri, Lucia Bertacchini, Marina Cocchi, Simona Sighinolfi, Michele Silvestri, Andrea Marchetti.
Abstract
The main goal of this study was to evaluate (87)Sr/(86)Sr ratio in different matrices, namely soils, branches, and grape juices, of an oenological food chain in order to develop a robust analytical strategy able to link the investigated food to its territory of origin. The (87)Sr/(86)Sr has been used as traceability marker and several aspects, affected its variability, i.e. geological features of the investigated area, the bio-available fraction of elements in the soils and the up-take of the plant, have been taken into account. Optimisation of an analytical procedure for the separation of Sr from its interferences and investigation of the analytical performances in terms of precision of used methodology have been carried out as well. This work highlighted a good match between the isotopic values monitored in the bio-available fraction of soils and their respective grape juices for almost all the investigated areas. The correlation with food satisfyingly improves when isotopic relative abundance values of branches vine are considered.Keywords: Geographical traceability; Grape juices; Multi collector ICP mass spectrometry; Strontium isotopic ratio
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Year: 2013 PMID： 23871024 DOI： 10.1016/j.foodchem.2013.05.108
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514