Climatic and geographical dependence of the H, C and O stable isotope ratios of Italian wine

Camin, Federica; Ðorđević, N.; Wehrens, Ron; Neteler, Markus; Delucchi, L.; Postma, G.J.; Buydens, L.M.C.

doi:10.1016/j.aca.2014.09.049

Cited by 69 publications

(47 citation statements)

References 25 publications

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“…Finally, recent works aimed at finding correlations between isotopic data (including 2 H PSIA) and parameters defining the denomination of the product. Statistics were then employed for chemometric analysis . A full strategy was developed to analyze the position‐specific fractionation of tree‐ring cellulose by irm‐ 2 H NMR .…”

Section: Irm‐2h Nmrmentioning

confidence: 99%

The new face of isotopic NMR at natural abundance

Jézéquel

Joubert

Giraudeau

et al. 2016

Magnetic Reson in Chemistry

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The most widely used method for isotope analysis at natural abundance is isotope ratio monitoring by Mass Spectrometry (irm-MS) which provides bulk isotopic composition in H, C, N, O or S. However, in the 1980s, the direct access to Site-specific Natural Isotope Fractionation by Nuclear Magnetic Resonance (SNIF-NMR ) was immediately recognized as a powerful technique to authenticate the origin of natural or synthetic products. The initial - and still most popular - application consisted in detecting the chaptalization of wines by irm- H NMR. The approach has been extended to a wide range of methodologies over the last decade, paving the way to a wide range of applications, not only in the field of authentication but also to study metabolism. In particular, the emerging irm- C NMR approach delivers direct access to position-specific C isotope content at natural abundance. After highlighting the application scope of irm-NMR ( H and C), this article describes the major improvements which made possible to reach the required accuracy of 1‰ (0.1%) in irm- C NMR. The last part of the manuscript summarizes the different steps to perform isotope analysis as a function of the sample properties (concentration, peak overlap) and the kind of targeted isotopic information (authentication, affiliation). Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Irm‐2h Nmrmentioning

confidence: 99%

The new face of isotopic NMR at natural abundance

Jézéquel

Joubert

Giraudeau

et al. 2016

Magnetic Reson in Chemistry

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“…A complex characterization of wine chemical composition may provide key specific markers for wine origin differentiation (Almeida and Vasconcelos 2003). In this regard, fingerprinting techniques using multivariate approaches have the potential to guarantee the geographical provenance of wine (Saurina 2010;Drivelos and Georgiou 2012;Monakhova et al 2014;Camin et al 2015;Azcarate et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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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 wineproducing 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.

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“…Camin and Co-workers [35] showed the relationship between (D/H) I , (D/H) II , and δ 13 C of ethanol, δ…”

Section: Authentication Of Geographic Originmentioning

confidence: 99%

“…Many studies have been published on the general or specific influence of geographic origin on stable isotope ratios in wine constituents [13][14][15][16][17][18][29][30][31][32][33][34][35].…”

Section: Authentication Of Geographic Originmentioning

confidence: 99%

25 Years authentication of wine with stable isotope analysis in the European Union – Review and outlook

Christoph¹,

Hermann

Wächter³

2015

BIO Web of Conferences

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Abstract. The implementation of stable isotope applications in official food analyses began in 1990. At that time the first method to detect sucrose from sugar beet or sugar cane in wine by Deuterium-Nuclear Magnetic Resonance ( 2 H-NMR) of ethanol, also known as SNIF-NMR ® -Method became adopted officially by the European Commission. This was a milestone for an improved authentication of wines and other food stuffs. In connection with methods using Isotope Ratio Mass Spectrometry (IRMS), stable isotope ratio analysis is one of the most powerful analytical tools for authentication of wine. The fundamentals of biotic and abiotic stable isotope fractionation and the analytical methods which are used in authentication of wine are summarized. Principles of authentication of some wine constituents like sugar, ethanol, organic acids, glycerol, and carbon dioxide as well as proof of geographic origin are reviewed. By selected example of anonymized cases, proof of adulterations (e.g. chaptalization, addition of water or mislabeling) using monovariate, bivariate, and multivariate data evaluations are discussed. It is shown that for this purpose databanks are generally indispensable. In their absence cut-off values, derived from long-term observations help to detect clear adulterations.

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Climatic and geographical dependence of the H, C and O stable isotope ratios of Italian wine

Cited by 69 publications

References 25 publications

The new face of isotopic NMR at natural abundance

The new face of isotopic NMR at natural abundance

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

25 Years authentication of wine with stable isotope analysis in the European Union – Review and outlook

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