文献类型： 外文期刊
作者： Nie, Jing 1 ; Shao, Shengzhi 1 ; Xia, Wei 1 ; Liu, Zhi 1 ; Yu, Chongchong 3 ; Li, Rui 2 ; Wang, Wei 2 ; Li, Jirong 5 ; Yuan, 1 ;
作者机构： 1.State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agr Prod, 198 Shigiao Rd, Hangzhou 310021, Zhejiang, Peoples R China
3.Beijing Technol & Business Univ, Natl Engn Lab Agriprod Qual Traceabil, Beijing 100048, Peoples R China
4.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Peoples R China
5.Tibet Acad Agr & Anim Husb Sci, Inst Agr Prod Qual Stand & Testing Res, Lhasa 850032, Peoples R China
6.Natl Isotope Ctr, GNS Sci, 30 Gracefield Rd, Lower Hutt 5040, New Zealand
关键词： Geographical origin; Yak meat; Stable isotopes; Product of geographical indication
期刊名称：MEAT SCIENCE （ 影响因子：5.209； 五年影响因子：5.305 ）
ISSN： 0309-1740
年卷期： 2020 年 165 卷
页码：
收录情况： SCI
摘要： High-value yak meat from Qinghai-Tibet Plateau was investigated using stable isotopes (delta C-13, delta H-2, delta O-18, delta N-15 and delta S-34) to identify attributes which could verify and protect its geographical origin. Supervised PLS-DA was applied to the isotope data to discriminate four geographical locations. delta C-13, delta H-2, and delta O-18 values showed significant differences according to origin while delta N-15 and delta S-34 values did not show any change across the different regions. Isotope values of different body tissues from the same animal showed no statistical difference for the five stable isotopes. In addition, the delta H-2 and delta O-18 values of defatted yak meat was highly correlated to farm altitude and associated drinking water. This yak meat traceability method is particularly useful to protect the Product of Geographical Indication (PGI) status of Gannan yak meat and verify the farming origin of yak meat sold in markets for food safety purposes, especially when excessive hormones, pesticides or heavy metals are found.
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