Trace the origin of yak meat in Xizang based on stable isotope combined with multivariate statistics

文献类型： 外文期刊

第一作者： Zong, Wanli

作者： Zong, Wanli;Zhao, Shanshan;Li, Yalan;Yang, Xiaoting;Qie, Mengjie;Zhao, Yan;Zong, Wanli;Zhang, Ping

作者机构：

关键词： Xizang Autonomous Region; Yak meat; Stable isotope; Origin traceability; Multivariate statistics

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2024 年 926 卷

页码：

收录情况： SCI

摘要： In this study, the feasibility of tracing the origin of yak meat in Xizang Autonomous Region based on stable isotope combined with multivariable statistics was researched. The delta C-13, delta N-15, delta H-2 and delta O-18 in yak meat were determined by stable isotope ratio mass spectrometry, and the data were analyzed by analysis of variance, fisher discriminant analysis (FDA), back propagation (BP) neural network and orthogonal partial least squares discrimination analysis (OPLS-DA). The results showed that the delta C-13, delta N-15, delta H-2 and delta O-18 had significant differences among different origins (P < 0.05). The overall original correct discrimination rate of fisher discriminant analysis was 89.7 %, and the correct discrimination rate of cross validation was 88.2 %. The correct classification rate of BP neural network based on training set was 93.38 %, and the correct classification rate of BP neural network based on test set was 89.83 %. The OPLS-DA model interpretation rate parameter (RY)-Y-2 was 0.67, the model prediction rate parameter Q(2) was 0.409, which could distinguish yak meat from seven different producing areas in Xizang Autonomous Region. The results showed that the origin of yak meat in Xizang Autonomous Region can be traced based on stable isotope combined with multivariate statistics.

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