NDLI: Elemental Profile and $^{87}$Sr/$^{86}$Sr Isotope Ratio as Fingerprints for Geographical Traceability of Wines: an Approach on Romanian Wines

Content Provider	Springer Nature Link
Author	Geană, Elisabeta Irina Sandru, Claudia Stanciu, Vasile Ionete, Roxana Elena
Copyright Year	2016
Abstract	Wine geographical traceability is an important topic in the context of wine authentication and for that, many researchers worldwide have addressed this subject by developing different methodologies based on multivariate analysis of natural chemical composition data (inorganic or organic parameters) and isotopic signature. The goal of this work was to assess the potential of elemental composition and strontium isotope ratio ($^{87}$Sr/$^{86}$Sr) of wines from important wine-producing regions in Romania, located in relatively small geographical areas, in order to highlight reliable markers for wine geographical origin discrimination. Elemental profile determinations were performed by ICP-MS, GFAAS, and FAAS techniques after microwave acid digestion of the wine samples. The $^{87}$Sr/$^{86}$Sr isotope ratio of the resulted extracts was determined by quadrupole inductively coupled plasma mass spectrometry (Q-ICP-MS), after separating strontium and rubidium using cation-exchange chromatography with Dowex 50W-X8 resin and the complexation ability of the carboxylic acid EDTA. The variation of elemental composition (Ga, Sr, and Al), Ca/Sr ratio, and the $^{87}$Sr/$^{86}$Sr ratio of the investigated wine clearly demonstrated that these variables are suitable tracers for wine geographic origin determination. The proposed methodology allowed a 100 % successful classification of wines according to the region of provenance.
Starting Page	63
Ending Page	73
Page Count	11
File Format	PDF
ISSN	19369751
Journal	Food Analytical Methods
Volume Number	10
Issue Number	1
e-ISSN	1936976X
Language	English
Publisher	Springer US
Publisher Date	2016-05-27
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	$^{87}$Sr/$^{86}$Sr isotope ratio Elemental composition Wine Geographic origin Food Science Chemistry/Food Science Microbiology Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Safety Research Safety, Risk, Reliability and Quality Applied Microbiology and Biotechnology Food Science

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