文献类型： 外文期刊
作者： Zhaxi, Cidan 1 ; Zhao, Shanshan 2 ; Zhang, Tangwei 1 ; Dong, Hao 3 ; Liu, Haijin 4 ; Zhao, Yan 2 ;
作者机构： 1.Tibet Acad Agr & Anim Husb Sci, Inst Qual Stand & Testing Technol Agroprod, Lhasa 850032, Tibet, Peoples R China
2.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
3.Zhongkai Univ Agr & Engn, Coll Light Ind & Food Sci, Guangzhou 510225, Peoples R China
4.Tibet Autonomous Reg Agr & Livestock Prod Qual &, Lhasa 850211, Peoples R China
关键词： Tibetan chicken; Traceability; Stable isotope; Chemometrics; Environmental parameters
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2021 年 358 卷
页码：
收录情况： SCI
摘要： Due to the particularity of origin area, the yield and price of Tibetan chicken are different from those in the plain areas, which leads to chickens from the plains being disguised as Tibetan chickens. In present study, Tibetan chicken and chicken from other four provinces in plain areas were distinguished by stable isotopes and chemometric methods. The cross-validation rate was 97.6%. Secondly, correlation between mean 613C, 615N, 62H and 618O values in chicken samples and environmental parameters was investigated. These indicators are closely related to geographical environment. 613C and 615N values were positively correlated with longitude (R = 0.955) and altitude (R = 0.796), respectively. 618O and 62H values were negatively correlated with latitude (R = 0.903) and altitude (R = 0.938), respectively. At last, we used stable isotopes to trace Tibetan chicken from the different area of Tibet. When four stable isotope ratios were combined, we can distinguish them.
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