Authenticating Tibetan pork in China by tracing the species and geographical features based on stable isotopic and multi-elemental fingerprints
文献类型： 外文期刊
作者： Zhao, Laiyu 1 ; Zhang, Hongru 1 ; Huang, Feng 1 ; Liu, Hao 1 ; Wang, Tianze 1 ; Zhang, Chunhui 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Proc, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China
2.Wageningen Univ & Res, Food Qual & Design Grp, POB 17, NL-6700 AA Wageningen, Netherlands
3.Univ Liege, Lab Biomass & Green Technol, Gembloux Agrobio Tech, Passage Deportes 2, B-5030 Gembloux, Belgium
关键词： Tibetan pork; Stable isotope; Multi -elements; Discrimination; Geographical origin
期刊名称：FOOD CONTROL （ 影响因子：6.0； 五年影响因子：5.8 ）
ISSN： 0956-7135
年卷期： 2023 年 145 卷
页码：
收录情况： SCI
摘要： A potential tool for authenticating Tibetan pork based on species and geographical origins was investigated by isotopic and multi-elemental fingerprints to compare Tibetan pork and plain pork from various regions in China. In this study, carbon, nitrogen, hydrogen and oxygen isotope compositions and concentrations of 50 elements of a total of 93 pork samples (Tibetan pork from Tibet and Sichuan, Jilin pork from Jilin and DLY pork from Liaoning) were determined and subjected to multivariate analysis, including linear discriminant analysis (LDA), partial least squares discriminant analysis (PLS-DA) and correlation analysis. The trace elements Fe, Cu, Rb, Mo, Cs, Ir, Co, Sr, Sm and four stable isotopes were determined as potential markers for identifying Tibetan pork. The discriminant model revealed good discrimination among pork samples based on species and regions, and the high accuracies of K-fold cross-validation (95.74% and 97.84%) indicated the reliability and stability of classification models. This study has demonstrated the efficiency of isotopic and multi-elemental technology in identifying Chinese high-altitude indigenous pigs.
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