Origin assignment by multi-element stable isotopes of lamb tissues

文献类型： 外文期刊

第一作者： Sun, Shumin

作者： Sun, Shumin;Guo, Boli;Wei, Yimin

作者机构：

关键词： Origin assignment;Stable isotopes;Lamb defatted muscle;Wool

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The carbon, nitrogen and hydrogen isotopic compositions in lamb meat and wool samples under two feeding regimes from five different regions of China were determined by IRMS, which is to investigate their potential for assigning the lamb meat according to geographical origins. The delta C-13, delta N-15 and delta H-2 values in lamb tissues had significant differences among different regions, with the delta C-13 value is highly related to that of the lamb feeds (p < 0.01) and the delta H-2 value is significantly correlated with lamb drinking water (p < 0.05). Moreover, delta C-13, delta N-15 and delta H-2 values of lamb muscle are all highly correlated with the wool samples. A total correct classification of 88.9% and 83.8% were obtained from the combination of C, N and H isotopes of lamb muscle and wool, respectively. These results demonstrate that multi-element isotopes are effective in identifying the geographical origin of lamb meat. Moreover, both muscle and hair tissue can be used for lamb traceability. (C) 2016 Published by Elsevier Ltd.

分类号： TS2`TS201.2

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