食品科学 ›› 2014, Vol. 35 ›› Issue (2): 248-251.doi: 10.7506/spkx1002-6630-201402048

• 分析检测 • 上一篇    下一篇

食品中鸡源性成分实时荧光PCR检测方法的建立

范丽丽1,李 培2,傅春玲1 ,*,丁洪流2,陈 英2   

  1. 1.苏州大学医学部公共卫生学院,江苏 苏州 215123;2.苏州市产品质量监督检验所,江苏 苏州 215128
  • 收稿日期:2013-04-22 修回日期:2013-12-24 出版日期:2014-01-25 发布日期:2014-02-19
  • 通讯作者: 傅春玲 E-mail:fuchunling@suda.edu.cn
  • 基金资助:

    苏州市科技支撑计划项目(SS201126)

Detection of Chicken-Derived Ingredients in Foods by Fluorescence-Based Quantitative Real-Time PCR

FAN Li-li1, LI Pei2, FU Chun-ling1,*, DING Hong-liu2, CHEN Ying2   

  1. 1. School of Public Health, Medical College, Soochow University, Suzhou 215123, China;
    2. Suzhou Products Quality Supervision and Inspection Institute, Suzhou 215128, China
  • Received:2013-04-22 Revised:2013-12-24 Online:2014-01-25 Published:2014-02-19
  • Contact: FU Chun-ling E-mail:fuchunling@suda.edu.cn

摘要:

目的:建立基于实时荧光聚合酶链式反应技术的食品中鸡源性成分快速检测方法。方法:以鸡线粒体细胞 色素b为目的基因,设计特异性引物和探针,通过特异性、灵敏性实验及模拟混合肉样和市售肉制品检测,对该体 系进行验证。结果:该鸡源荧光聚合酶链式反应检测体系具有很好的特异性及灵敏性,可检测3.5 pg/μL鸡源DNA 的存在;经含鸡源成分的模拟混合肉样检测,证实体系抗干扰能力强;并且通过市售食品检测表明体系可用于定性 加工食品中的鸡源成分。结论:所建立的鸡源引物探针体系具有特异性好、灵敏度高、快速高效等优点,可用于对 食品中鸡源性成分的掺假鉴别。

关键词: 实时荧光聚合酶链式反应, 鸡, 线粒体细胞色素b基因, 食品掺假

Abstract:

Objective: This study is aimed to establish a fluorescence-based real time polymerase chain reaction (PCR) assay
for specific detection of chicken-derived ingredients in foods. Methods: A pair of primers and a Taqman probe targeting the
conservative regions of the chicken mitochondrial cytochrome b (Cyt b) gene were designed. The assay system was validated
with respect to sensitivity and specificity by detecting mixed meat samples and commercial meat products. Results: The
assay was found to be highly specific and sensitive as evidenced by showing no amplification of DNA extracted from other
meats and by its capability of detecting 3.5 pg/μL of chicken DNA. Its application for detecting mixed samples of chickenderived
ingredients and other meats showed high strong anti-interference performance. Conclusion: The PCR system offers
the advantages of high specificity and sensitivity as well as rapidity and is applicable to identify meat products adulterated
with chicken-derived ingredients.

Key words: real-time PCR, chicken, mitochondrial cytochrome b gene, food adulteration

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