Stable isotope ratios as a potential tool for verifying the geographical origin of domestic and imported beef in Japan
2008
Nakashita, R.(Tokyo Metropolitan Univ., Hachioji (Japan)) | Suzuki, Y. | Akamatsu, F. | Obara, K. | Korenaga, T.
In the present study, carbon, nitrogen, and oxygen isotope ratios of beef from Japan, Australia, and the USA, were examined as potential tools for verifying the geographical origin of beef commercially distributed in Japan. Beef from the USA is characterized by a higher carbon isotope ratio (-12.6+-1.0permille, mean+-sd), than beef from Japan (-19.3+-0.5permille) and Australia (-22.1+-1.5permille). Furthermore, beef from Australia is characterized as having a higher oxygen isotope ratio (+17.2+-1.1permille) than beef from Japan (+10.4+-1.0permille) and the USA (+10.8+-1.1permille). The present results suggest that carbon and oxygen stable isotope analysis is applicable as a tool for determining the geographical origin of beef.
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