title: Tracing the geographical origin of beefs being circulated in Korean markets based on stable isotopes.
abstract: We have examined the carbon, nitrogen and oxygen isotopic compositions of American, Mexican, Australian, New Zealand and Korean beefs, which are currently being circulated in Korean markets, to check whether stable isotope ratios can identify their country of origin. Each beef exhibited statistically distinct isotopic compositions, especially in oxygen and carbon, because of the different isotopic compositions of their water and cattle feeds. Nevertheless, their isotopic compositions still showed some overlap, especially among USA, Australian, and Korean beefs, which sometimes resulted in significant misidentification when a single isotope was considered. However, the discrimination was generally successful when both the carbon and the oxygen isotopes were used.
authors: Division of Earth & Environmental Sciences, Korea Basic Science Institute, 113 Gwahangno, Yusung-gu, Daejeon 305-333, Korea.
authors: Yeon-Sik
authors: YS
authors: Bong
authors: Woo-Jin
authors: WJ
authors: Shin
authors: A-Reum
authors: AR
authors: Lee
authors: Young-Soo
authors: YS
authors: Kim
authors: Kangjoo
authors: K
authors: Kim
authors: Kwang-Sik
authors: KS
authors: Lee
mesh_terms: D005504:Food Analysis / Q000379:methods*; D005515:Food Labeling / Q000379:methods*; D005843:Geography; D007553:Isotope Labeling / Q000379:methods*; D007723:Korea; D013058:Mass Spectrometry / Q000379:methods*; D008460:Meat / Q000032:analysis* / Q000145:classification*