| 多元素分析判别牛肉产地来源研究 |
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| 引用本文： | 郭波莉,魏益民,潘家荣,李勇.多元素分析判别牛肉产地来源研究[J].中国农业科学,2007,40(12):2842-2847. |
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| 作者姓名： | 郭波莉 魏益民 潘家荣 李勇 |
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| 作者单位： | 中国农业科学院农产品加工研究所/农业部农业核技术与农产品加工重点实验室,北京,100094 |
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| 基金项目： | 国家科技支撑计划;国家自然科学基金 |
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| 摘 要： | 【目的】探讨多元素分析对中国牛肉产地溯源的可行性，筛选判别牛肉产地的有效指标。【方法】在代表中国4大牛肉产区的吉林、贵州、宁夏、河北共取牛肉样品61个，进行脱脂后利用等离子体质谱仪（ICP-MS），测定了脱脂牛肉样品中的Na、Mg、Al、K、Ca、V、Mn、Fe、Co、Ni、Cu、Zn、Ga、As、Se、Sr、Zr、Mo、Sn、Sb、Ba、Pb共22种元素的含量，对其进行了方差分析、主成分分析、聚类分析及判别分析。【结果】不同地域牛肉样品中元素含量有其各自的特征。河北样品的Mn、Fe、Co、Zn、Ga、As、Se、Sr、Ba和Pb含量均极显著高于其它3个地区，吉林样品的Ni含量最高，贵州样品的K、Mo和Sb含量最高，宁夏样品的Na和Ca含量最高。主成分分析和聚类分析使牛肉样品分成不同类别，类别与来源地基本一致。通过逐步判别分析筛选出了5项可判别牛肉产地来源的指标，依次为Se、Sr、Fe、Ni和Zn，它们对吉林、贵州、河北样品的正确判别率均为100％，对宁夏样品的正确判别率为91％，整体的正确判别率为98.4％。【结论】利用多元素分析技术对牛肉产地来源的判别是可行的。
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| 关 键 词： | 牛肉 产地 追溯 多元素分析 等离子体质谱仪 |
| 收稿时间： | 2006-7-4 |
| 修稿时间： | 2006年7月4日 |
Determination of Beef Geographical Origin Based on Multi-Element Analysis |
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| GUO Bo-li,WEI Yi-min,PAN Jia-rong,LI Yong.Determination of Beef Geographical Origin Based on Multi-Element Analysis[J].Scientia Agricultura Sinica,2007,40(12):2842-2847. |
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| Authors: | GUO Bo-li WEI Yi-min PAN Jia-rong LI Yong |
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| Abstract: | 【Objective】To investigate the feasibility of multi-element analysis in determination of the geographical origin of beef in China, and preliminarily screen the effective tracers for beef origin assessment. 【Method】Contents of such elements as Na、Mg、Al、K、Ca、V、Mn、Fe、Co、Ni、Cu、Zn、Ga、As、Se、Sr、Zr、Mo、Sn、Sb、Ba、Pb were determined using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) in 61 de-fatted beef samples, which originated from Jilin, Guizhou, Ningxia, and Hebei province. The data was analyzed by analysis of variance (ANOVA), principal component analysis (PCA), cluster analysis （CA） and discriminant analysis (DA). 【Results】The contents of Mn、Fe、Co、Zn、Ga、As、Se、Sr、Ba and Pb were the highest in the samples from Hebei province, the content of Ni was the highest in those from Jijin province, while the contents of K、Mo and Sb were the highest in those from Guizhou province, and those of Na and Ca were the highest in those from Ningxia province. The samples of de-fatted beef were classified into catalogs by PCA and CA, which was consistent to the geographical origin. Contents of five elements of Se、Sr、Fe、Ni and Zn were selected by DA and suggested as better tracers for beef origin assessment, by which, a 100% correct classification was achieved for samples from Jinlin, Guizhou and Hebei province, a 91% correct classification for samples from Ningxia province, and 98.4% correct classification for all samples from four different regions. 【Conclusion】It is feasible to determine the geographical origin of beef by the technology of multi-element analysis. |
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| Keywords: | Beef Geographical origin Traceability Multi-element analysis ICP-MS |
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