Tracing the geographical origin of rice by stable isotopic analyses combined with chemometrics

文献类型： 外文期刊

第一作者： Wang, Jishi

作者： Wang, Jishi;Chen, Tianjin;Zhao, Yan;Yang, Shuming;Chen, Ailiang;Zhang, Weixing

作者机构：

关键词： Rice; Provenance; Stable isotope; Chemometrics

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

ISSN： 0308-8146

年卷期： 2020 年 313 卷

页码：

收录情况： SCI

摘要： Multivariate stable isotope analysis combined with chemometrics was used to investigate and discriminate rice samples from six rice producing provinces in China (Heilongjiang, Jilin, Jiangsu, Zhejiang, Hunan and Guizhou) and four other Asian rice producing countries (Thailand, Malaysia, Philippines, and Pakistan). The stable isotope characteristics were analyzed for rice of different species cultivated with varied farming methods at different altitudes and latitudes/longitudes. The index groups of delta C-13, delta N-15, delta O-18, Pb-207/206 and Pb-208/207 were screened and established for the selected samples with different geographical features by means of principal component analysis (PCA) and discriminant analysis (DA), which would provide a sound technical solution for rice traceability and serve as a template for further research on the traceability of other agricultural products, especially plant-derived products.

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