DNA条形码在肉制品掺伪中非定向筛查技术的研究  

Research on the non-directional test in meat adulteration based on DNA barcode

作　　者：钟文涛[1,2] 王芳妹[1,2] 李白玉 蒋伟 颜亨梅[2] 

机构地区：[1]国家农副产品质量监督检验中心,湖南省产商品质量监督检验研究院,长沙410007 [2]湖南师范大学生命科学院,长沙410006

出　　处：《食品安全质量检测学报》2017年第5期1547-1551,共5页Journal of Food Safety and Quality

基　　金：国家质量监督检验检疫总局科技计划项目(2016QK057);国家自然科学基金项目(31372159)~~

摘　　要：目的对基于DNA条形码的肉制品掺伪中非定向筛选技术进行探索。方法以线粒体基因组中COI基因为靶标,设计猪、牛、羊、马、鸡、鸭、鹅、鼠8种动物源物种间的通用引物和特异性引物,建立禽畜肉的DNA条形码检测方法。同时应用该技术对50份市售的肉制品进行检测。结果本研究建立了DNA条形码筛选技术,电泳条带通过基因测序能正确识别猪、牛、羊、马、鸡、鸭、鹅、鼠8种动物源成分,结合分子克隆技术能实现对混合肉的检测。50份市售肉制品的DNA条形码结果显示,16份掺杂了除牛羊肉以外的其他禽畜肉。结论 DNA条形码技术能打破传统标准中PCR法检测目标唯一性的局限,具有良好的应用前景。Objective To research non-directional test method of meat adulteration based on DNA barcode.Methods Based on COI gene in mitochondria,universal primers and specific primers of pork,beef,mutton,horsemeat,chicken,duck,goose and rat were designed and DNA barcode method was established.And then 50 meat products bought from markets were detected by this method.Results Pork,beef,mutton,horsemeat,chicken,duck,goose and rat meat could be distinguished with each other after sequencing gene of electrophoresis banding in the established DNA barcode method.Combined with molecular cloning technique,mixed meat could be tested by this method.The DNA barcode test results of 50 meat products showed that 16 of them were adulterated with other livestock meat except for beef and mutton.Conclusion DNA barcode can break the limitation of which the target of PCR method is unique in traditional standard,and this technology has the extremely broad application prospect.

关 键 词：DNA条形码 COI基因 肉制品掺伪 非定向筛查 

分 类 号：TS251.7[轻工技术与工程—农产品加工及贮藏工程]