Combination of multi-element and stable isotope analysis improved the traceability of chicken from four provinces of China

Abstract

The establishment of appropriate analytical methods to authenticate the geographic origin of poultry meat independent of paper record becomes especially important nowadays. In this study, data were analyzed in terms of both the contents of two stable isotopes (C and N) and 12 mineral elements of chicken samples from four provinces to trace their geographical origin. The results showed that classification of chicken was improved by combining both types of data, as compared to that using the mineral element data alone. The present study demonstrates that it is possible to indicate the poultry origin by applying stable isotope and multi-element analysis, which is an effective tool to trace the geographic origin of poultry.Keywords: stable isotope; multi-element; geographic origin; chicken Hoy en día es muy importante el establecimiento de métodos analíticos apropiados para autentificar el origen geográfico de la carne de ave de forma independiente a los estudios publicados. En este estudio, se analizaron los datos según el contenido de 2 isótopos estables (C y N) y 12 elementos minerales de muestras de pollo de 4 provincias para trazar su origen geográfico. Los resultados mostraron que la clasificación del pollo fue mejorada mediante la combinación de los dos tipos de datos, en comparación con la utilización única de elemento mineral. El presente estudio demuestra que es posible indicar el origen de las aves mediante la aplicación del análisis de isótopos estables y multielemento, el cual es una herramienta efectiva para trazar el origen geográfico de las aves.

Combined Stable Isotopes and Multi-element Analysis to Research the Difference Between Organic and Conventional Chicken

“…Further PCA was developed with the combination of carbon and nitrogen stable isotopes and multi-elements. A combination of multi-element and stable isotope analysis improved the traceability of chicken from different geographical origins (Zhao et al 2016). …”

A rapid sample preparation method for the analysis of stable isotope ratios of beef samples from different countries

“…This may be due to the use of chemical fertilizer application to grow plants, which are subsequently fed to the cows. 25 The use of leguminous plants in the cattle feed directly fixes atmospheric nitrogen and can lead to relatively low δ 15 N values. 26 The use of more organic fertilizers in plants growth 27 The H and O isotope ratios in animal tissue are dominated by the hydrogen and oxygen isotopic composition of the water that the animal ingested, 28 and the isotopic pattern of water is controlled by distance from the sea, 29 differences in latitude, 9 beef from different countries (Table 3C; Figure 3C).…”

Mass spectrometry-based untargeted metabolomics approach for differentiation of beef of different geographic origins

“…Therefore, it is unknown whether, for instance, Japanese beef can be accurately differentiated from European beef by using only molecular markers. To this end, in China, researchers have successfully distinguished beef produced from Shandong, Heilongjiang, Yunnan and the Tibet Autonomous Region using carbon isotope ratio, but not the nitrogen isotope ratio (Zhao, Zhang, Guo, Wang & Yang, 2016). Moreover, elemental profiles obtained from elemental analyzer continuous flow isotope ratio MS could distinguish beef from four out of five countries, namely Australia, Brazil, Canada and the US, but misclassification between Brazilian and Swiss beef was observed in the external validation set (Franke, Haldimann, Gremaud, Bosset, Hadorn & Kreuzer, 2008).…”