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基于矿物元素指纹的羊肉产地溯源技术 被引量:35

Geographical origin traceability of lamb based on mineral element fingerprints
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摘要 为探讨矿物元素指纹对羊肉产地溯源的有效性,找寻表征地域特性的元素指标,利用电感耦合等离子体质谱仪分析中国内蒙古自治区阿拉善盟、锡林郭勒盟和呼伦贝尔市3个牧区,及重庆市和山东省菏泽市2个农区脱脂羊肉和土壤样品中4种常量元素(K、Ca、Na、Mg)和13种微量元素(V、Mn、Fe、Cr、Ni、Cu、As、Be、Sb、Zn、Se、Ba、Tl)的含量,对其进行方差分析、相关分析和判别分析。结果表明,羊肉中矿物元素含量组成在地域间有明显差异,农区元素含量普遍高于牧区。脱脂羊肉中Ca、Zn、Be、Ni、Fe、Ba、Sb、Mn和Se9种元素含量的地域差异与土壤相关,它们对农牧区的正确判别率达90%以上,对5个地域的正确判别率在70%~100%之间。利用羊肉中矿物元素指纹分析技术可鉴别和追溯羊肉的产地来源,为羊肉及其他食品的产地溯源研究提供方法参考。 Mineral element fingerprints in lamb meat of the different origins were investigated,aiming to seek its potential of determining the geographical origin of lamb.Contents of four essential major elements(K、Ca、Na、 Mg),and thirteen trace elements(V、Mn、Fe、Cr、Be、Sb、Ni、Cu、As、Zn、Se、Ba、Tl) in lamb samples from three pastoral regions including Alxa League,Xilin Gol League and Hulunbuir City,and two agricultural regions including Chongqing City and Heze City of China were analyzed by inductively coupled plasma mass spectrometry(ICP-MS).The multivariate statistical methods such as variation analysis,correlation analysis and discriminant analysis were used for data analysis.The results showed that the mineral element fingerprints had distinct geographical features.The agricultural region samples were characterized by generally higher elemental contents than the pastoral region samples.Nine elements including Ca、Zn、Be、Ni、Fe、Ba、Sb、Mn and Se were related to the local soil and suggested as effective tracers for lamb origin assessment.The correct classification rate were both higher than 90% for samples from the agricultural and pastoral regions,while varied between 70% and 100% for samples from the five individual regions.The results demonstrated that the mineral element fingerprints can be used to authenticate geographical origins of lamb.This method can also provide a reference for origin traceability of other foodstuffs.
出处 《农业工程学报》 EI CAS CSCD 北大核心 2012年第17期237-243,共7页 Transactions of the Chinese Society of Agricultural Engineering
基金 国家自然科学基金项目(30800862) 农业部"948"项目(编号2009-Z45(2))
关键词 农产品 矿物质 地理区域 羊肉 原产地 溯源 矿物元素 agricultural products minerals geographical regions lamb meat origin traceability element fingerprint
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