UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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Conference: Bucharest University Faculty of Physics 2009 Meeting


Section: Atomic and Molecular Physics; Astrophysics


Title:
13C and 18O measurements by continuous flow-Isotope Ratio Mass Spectrometry (CF-IRMS) in Romanian wines characterization


Authors:
Costinel Diana (1), Grecu Voicu (2), Roxana-Elena Ionete (1), Vremera Raluca (1), Costin Savin (3)


Affiliation:
1)National R&D Institute of Cryogenics and Isotopic Technologies – ICSI Rm. Valcea, Research & Development Department – ICSI Rm. Valcea, Str. Uzinei, nr. 4 OP 4, CP 10, Rm. Valcea, cod 240050, Romania, e-mail: dianacostinel@yahoo.com

2)University Bucharest - Faculty of Physics, Department of Atomic and Nuclear Physics, Platforma Măgurele, Str. Fizicienilor nr. 1, CP Mg - 11, Bucharest-Măgurele, RO - 76900, Bucharest

3) Oenological R&D Institute Iasi-Romania


E-mail


Keywords:


Abstract:
Wine growing has been known for centuries long in Romania. The country has been favoured by its geographical position in South-Eastern Europe, by its proximity to the Black Sea, as well as by the specificity of the local soil and climate. High quality wines produced in this region were object of trade ever since ancient times. For this reason, the Romanian wine industry has now a huge potential for a significant impact in the near future. Under current EU research projects, is necessary to develop the new methods of identifying evidence for wine adulteration and safety. The use of mass spectrometry (MS) to determine the ratios of stable isotopes in bio-molecules now provides the means to prove the botanical and geographical origin of a wide variety of foodstuffs – and therefore, to authenticate and eliminate fraud. Isotope analysis has been officially adopted by the EU as a means of controlling adulteration of wine. Adulteration of wine can happen in many ways, e.g. addition of non-grape ethanol, addition of non-grape sugar, water or other unauthorized substances, undeclared mixing of wines from different wards, geographical areas or countries, mislabeling of variety and age. The present paper emphasize the isotopic analysis for 18O/16O and 13C/12C from wines, using a new generation Isotope Ratio MS, CF-IRMS Delta V Plus, coupling with a two flexible continuous flow preparation device (GasBench II and TC Elemental Analyser). Authentication of wines is an important problem to which isotopic analysis has made a significant contribution. There is a strong need for reliable and validated methods to ensure compliance with such regulation and to protect the interests of the consumer. Bibliography [1] U. Römisch, D. Vandev and K. Zur1 Application of interactive regularised discriminant analysis to wine data, Project Steering Committee: R. Wittkowksi BfR, Germany, P. Brereton CSL, United Kingdom, E. Jamin Eurofins, France, X. Capron VUB, Belgium, C. Guillou JRC, Italy, M. Forina UGOA, Italy, U. Römisch TUB, Germany, V. Cotea UIASI.VPWT.LO, Romania, E. Kocsi NIWQ, Hungary, R. Schoula CTL, Czech Republic [2] Calderone, G; Reniero, F.and Claude Guillou: 18O/16O measurements on ethanol RCM 20, p.937-940, 2006 [3] Rossmann, A.; Schmidt, H.-L.; Reniero, F.; Versini, G.; Moussa, I.; Merle, M. H. Stable carbon isotope content in ethanol of EC data bank wines from Italy, France and Germany. Z. Lebensm. Unters. Forsch. 1996, 203, 293-301. [4] Bricout, J. In Stable Isotopes; Schmidt, H.-L., Fo¨rstel, H., Keinziger, K., Eds.; Elsevier: Amsterdam, The Netherlands, 1982; pp 483-493. [5] Dunbar, J. The Non-exchangeability of Oxygen between Ethanol and Wine in a Simulated Wine. Z. Phys. Chem., Neue Folge 1982, 130, 247-250. [6] Rossmann, A.; Reniero, F.; Moussa, I.; Schmidt, H.-L.;Versini, G.; Merle, M. H. Stable oxygen isotope content of water of EU data-bank wines from Italy, France and Germany. Z. Lebensm. Unters. Forsch. 1999, 208, 400- 407. [7] Coplen, T. B. Reporting of stable hydrogen, carbon, and oxygen isotopic abundances, Pure Appl. Chem. 1994, 66, 273-276. [8] T.Platzner Modern Isotope Ratio Mass Spectrometry Ed. J.Wiley&Sons 1997 p.428 – 430