TÜRK PİRİNCİNİN COĞRAFİ MENŞEİ BELİRLENMESİNDE DURAYLI İZOTOP VE MULTİ- ELEMENT TEKNİKLERİNİN KULLANIMI

Öz Osmancık-97 is an important Turkish rice cultivar with high quality and it is often targeted for theadulteration with imported varieties. Multiple elements and stable isotope profile were investigated fortheir use to trace geographical origin of Turkish rice (Oryza sativa L.) samples. Fourteen key variablesCopper (Cu), Zinc (Zn), Iron (Fe), Nickel (Ni), Chromium(Cr), Aluminium (Al), Strontium (Sr), Carbon(C), Nitrogen (N), Oxygen (O) and Hydrogen (H) contents and stable isotopes (carbon, nitrogen, andoxygen isotopic compositions) were identified by "stepwise" canonical discriminate analysis (CDA) ofTurkish rice. For all samples δ13C, δ15N, and δ18O values are contributed from -25.99 to -28.15‰, +3.27to +7.71‰ and +22.32 to 27.08‰, respectively. Thus, the comparison of isotope profile and multipleelement contents of the rice is a good tool for rice authentication

Anahtar Kelimeler:

IRMS, coğrafik iﬂaretleme, pirinç

STABLE ISOTOPE AND MULTI-ELEMENT TECHNIQUES FOR DETERMINATION OF GEOGRAPHICAL ORIGIN OF TURKISH RICE

Keywords:

Authenticity, geographical origin IRMS, Osmancık 97, rice,

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Gevrek NM. 2012. Some Agronomic and Quality Characteristics of New Rice Varieties In The Aegean Region of Turkey. Turkish J Field Crops, 17(1), 74-77.

Suzuki Y, Chikaraishi Y, Ogawa ON, Ohkouchi N, Korenaga T. 2008. Geographical origin of polished rice based on multiple element and stable isotope analyses. Food Chem, 109, 470-475.

Kelly S, Heaton K, Hoogewerff J. 2005. Tracing the geographical origin of food: The application of multi-element and multi-isotope analysis. Trends Food Sci Tech, 16, 555-567.

Gonzálvez A, Armenta S, Guardia la de M. 2009. Trace-element composition and stable –isotope ratio for discrimination of foods with Protected Designation of Origin. Trends Anal Chem, 28(11), 1295-1311.

Suzuki Y, Akamatsu F, Nakashita R, Korenaga T. 2013. Characterization of Japanese polished rice by stable hydrogen ısotope analysis of total fatty acids for tracing regional origin. Anal Sci, 29, 143-146.

Korenaga T, Musashi M, Nakashita R, Suzuki Y. 2010. Statistical analysis of rice sample for compositions of multiple light elements (H,C,N, and O) and their stable isotopes. Anal Sci, 26, 873-878.

Gonzálvez A, Armenta S, Guardia la de M. 2011. Geographical traceability of "Arròs da Valencia" rice grain based on mineral element composition. Food Chem, 126:1254-1260.

Ariyama K, Shinozaki M, Kawasaki A. 2012. Determination of the geographical origin of rice by chemometrics with strontium and lead isotope ratios and multielement concentrations. J Agr Food Chem, 60, 1628-1634.

Kelly S, Baxter M, Chapman S, Rhodes C, Dennis J, Brereton P. 2002. The application of isotopic and elemental analysis to determine the geographical origin of premium long grain rice. Eur Food Res Technol, 214, 72-78.

Kohavi R. 1995. A study of cross-validation and bootstrap for accuracy estimation and model selection. Proceedings of the Fourteenth International Joint Conference on Artificial Intelligence (San Mateo, CA: Morgan Kaufmann) 2 (12), 1137–1143.

Li A. 2011. Determination of geographical origin of rice using stable isotope ratio and multi element analysis. The University of York Department of Chemistry Msc Thesis, United Kingdom.

Phuong DT, Chuong VP, Khiem DT, Kokot S. 1999. Elemental content of Vietnam rice Part 1. Sampling, analysis and comparison with previous studies. The Analst, 124, 553-560.

Rodrigues C, Maia R, Máguas C. 2013. The application of isotope ratio mass spectrometry to the study of the ecophysiology of plant seeds. Spectrosc Eur, 25(1), 12-18. 380