食品科学

• 分析检测 • 上一篇    下一篇

实时荧光聚合酶链式反应检测食用大豆油中动物源成分

王 丹,赵琳娜,胡凤月,吴 鹏,韩月贝,杨红莲   

  1. 北京市食品安全监控中心,北京 100041
  • 出版日期:2013-07-25 发布日期:2013-08-02

Detection of Animal-Origin Ingredients in Edible Vegetable Oil by Real-Time PCR

WANG Dan,ZHAO Lin-na,HU Feng-yue,WU Peng,HAN Yue-bei,YANG Hong-lian   

  1. Beijing Municipal Center for Food Safety Monitoring, Beijing 100041, China
  • Online:2013-07-25 Published:2013-08-02

摘要:

为了从植物油中检出动物成分,在前人对引物研究结果基础上,自行设计2条动物线粒体16S rRNA基因特异性探针,采用实时荧光聚合酶链式反应检测技术对5份分别掺有猪油、牛油、羊油、鸡油和鱼油的大豆油样本进行检测。结果表明:5份模拟掺假大豆油中的动物线粒体16S rRNA基因片段均可被特异性检出,说明鉴别方法可靠;该法能检测出大豆油中0.05%的动物油脂成分,是一种很敏感的检测方法。

关键词: 食用植物油, 动物源成分, 食品掺假, 实时荧光聚合酶链式反应

Abstract:

In recent years, vegetable oil adulterated with animal-origin ingredients appeared in the markets. In this work, a
method for the detection of animal-origin ingredients in edible soybean oil by real-time fluorescence PCR was established,
and two primers for animal mitochondria 16S rRNA gene were designed on the basis of data reported in the literature.
For 5 samples of soybean oil adulterated with porcine, beef, sheep, chicken and fish oil, respectively, the animal-origin
mitochondria specific genes were sensitively detected with a detection limit of 0.05%.

Key words: edible vegetable oil, animal-origin ingredient, adulteration, real time polymerase chain reaction (PCR)