1. Investigation Tracing the Origin of Tan Sheep Visceral Tissues through Mineral Elements.
- Author
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Hou, Yanru, Wang, Xuerong, Yang, Dongsong, Luo, Yulong, Li, Yalei, and Luo, Ruiming
- Subjects
TRACE elements ,FISHER discriminant analysis ,SHEEP ,PRINCIPAL components analysis ,HEART ,HUMAN fingerprints ,HIERARCHICAL clustering (Cluster analysis) ,MINERALS - Abstract
The traceability of quality mineral fingerprints in the viscera of Tan sheep from northwest China was studied. Twenty-five mineral elements in the heart and liver samples of Tan sheep were determined using an inductively coupled plasma mass spectrometer (ICP-MS), and the characteristics of the mineral elements in the visceral tissues of the Tan sheep were further analyzed in combination with a principal component analysis (PCA), hierarchical cluster analysis (HCA), and linear discriminant analysis (LDA) to establish a discriminant model and verify it. The results show that 11 elements (
137 Ba,43 Ca,63 Cu,56 Fe,39 K,31 P,60 Ni,78 Se,118 Sn,125 Te, and66 Zn) in the Tan sheep heart samples had significant differences among different regions (p < 0.05), and the results of the LDA show that the accuracy rate of the return-generation examination was 85.70%, and the accuracy rate of the hand-over-fork examination was 87.50%; 10 elements (111 Cd,59 Co,52 Cr,56 Fe,39 K,55 Mn,95 Mo,23 Na,121 Sb, and78 Se) in the Tan sheep liver samples had significant differences among different regions (p < 0.05), and the results of the LDA showed that the accuracy rate of the return-generation examination was 96.30%, and the accuracy rate of the hand-over-fork examination was 86.25%. This indicates that the multi-element analysis has potential for determining the origin of Tan sheep viscera in certain regions. [ABSTRACT FROM AUTHOR]- Published
- 2023
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