Authentication of Zhongning wolfberry with geographical indication by mineral profile

文献类型： 外文期刊

第一作者： Zhang, Senshen

作者： Zhang, Senshen;Wei, Yimin;Wei, Shuai;Liu, Hongyan;Guo, Boli

作者机构：

关键词： Authentication;inductively coupled plasma mass spectrometry;linear discriminant analysis;mineral profile;principal component analysis;wolfberry

期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.713； 五年影响因子：3.408 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Zhongning wolfberry is a famous geographical indication (GI) in China. The concentrations of twenty elements (K, Mg, Fe, Ca, Zn, Cu, Mn, Al, Sr, Rb, Mo, Tb, Cd, Co, V, As, Cs, Pr, Dy and Gd) in samples were determined using inductively coupled plasma mass spectrometry. The data were subjected to analysis of variance, principal component analysis and linear discriminant analysis. The results indicated that nineteen minerals (except K) represented significant differences among regions. The correct classification rates of original group and cross-validation of Zhongning wolfberry were 95.7% and 85.7%, for these nineteen variables. Furthermore, there was no significant difference for all variables in samples from three picking periods. It was feasible to distinguish Zhongning wolfberry based on mineral profiles with chemometric approaches, and the study could serve as a reference for the authentication of wolfberries and the prevention of deceptive labelling of other GI products.

分类号： TS2

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