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

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

Özet

Abstract

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