Authenticating Xinjiang Pishan Hong sheep based on multi-element fingerprint analysis

Abstract

Abstract: The study explored a method based on multi-elements combined with multivariate analysis to identify and authenticate Xinjiang Pishan Hong sheep. A total of 36 Pishan Hong sheep and 36 Hu sheep were collected, and both longissimus thoracis (LTL) and semitendinosus muscles (ST) were selected to determine the 51 multi-elements by (Inductively coupled plasma mass spectrometry, ICP-MS). Results displayed that Hong sheep demonstrated characteristic elemental fingerprints in different muscle types compared to Hu sheep, which were mainly reflected by trace elements. The linear discriminant analysis results based on significant elements showed a good discrimination effect, which was mainly reflected in LTL muscle. The accuracies of sheep breeds and muscle types models were 100% and 99.29%, respectively. Besides, a total of 13 multi-elements (La, Zn, Cs, Sn, Ho, Fe, Rh, Co, Se, Te, Mo, Al and Sb) were used to identify Pishan Hong sheep, with Rh, Te, Ho being key elements to identify Pishan Hong lamb with higher VIP scores, which were the key elemental markers. These characteristic elements compositions were associated with the breed, muscles and geographical locations.

Key words: Pishan Hong sheep, mineral elements, discriminant analysis, authentication

CLC Number:

TS207.7

Chun-Hui ZHANG. Authenticating Xinjiang Pishan Hong sheep based on multi-element fingerprint analysis[J]. FOOD SCIENCE, 0, (): 0-0.

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