生物技术通报 ›› 2016, Vol. 32 ›› Issue (1): 69-73.doi: 10.13560/j.cnki.biotech.bull.1985.2016.01.012

• 技术与方法 • 上一篇    下一篇

实时荧光PCR法同时检测食物中大豆和芹菜致敏原成分

汪永信, 程潇, 安虹, 聂磊, 张波, 刘娟娟   

  1. 国家农副加工食品质量监督检验中心 安徽省食品药品检验研究院, 合肥 230051
  • 收稿日期:2015-03-29 出版日期:2016-01-09 发布日期:2016-01-22
  • 作者简介:汪永信, 男, 硕士, 工程师, 研究方向:分子生物学与食品安全检测;E-mail:yxw118952@163.com
  • 基金资助:
    安徽省质监局科研项目(13zj37003)

Synchronously Detecting the Allergenic Ingredients of Soybean and Celery in Food by Real-time Fluorescent PCR

WANG Yong-xin, CHENG Xiao, AN Hong, NIE Lei, ZHANG Bo, LIU Juan-juan   

  1. National Center for Quality Supervision and Test of Agricultural-avocation Processed Food, Anhui Institute for Food and Drug Control, Hefei 230051
  • Received:2015-03-29 Published:2016-01-09 Online:2016-01-22

摘要: 大豆、芹菜等食品原料是一些特殊人群的致敏原。根据大豆atp A基因和芹菜mtd基因设计特异性引物, 利用不同荧光素标记的TaqMan探针, 建立了一种实时荧光PCR检测方法, 可同时检测食物中大豆和芹菜致敏原成分。分别以大豆、芹菜、大米、小麦、大麦、花生、芝麻、玉米、马铃薯、蕃茄、核桃、开心果、腰果、葵花籽、杏仁、苹果、梨、草莓、猪肉、牛肉、羊肉及鱼肉等材料的基因组DNA作为模板, 进行PCR扩增实验, 结果发现该方法仅能特异性扩增大豆和芹菜致敏原成分。灵敏度测试结果表明大豆和芹菜成分的检出限均达0.01%。因此, 本方法可以作为同时检测食品中大豆和芹菜致敏原成分的特异性方法。

关键词: 实时荧光PCR, 大豆, 芹菜, 致敏原检测

Abstract: Soybean and celery as food ingredients are allergen for some special groups of people. Designing the specific primers based on atp A gene of soybean and mtd gene of celery and utilizing TaqMan probes with different fluorescents, we set up a fluorescent real-time PCR method allowing the simultaneous detection of allergenic constituents of soybean and celery in food. The specificity of the method was evaluated using template DNAs from soybean or celery and other 20 species such as rice, wheat, barley, peanut, sesame, maize, murphy, tomato, walnut, pistachio, cashew nut, sunflower seeds, almond, apple, pear, strawberry, pork, beef, mutton and fish, only the specific amplifications of soybean and celery were observed. The limit of quantification was 0. 01% through sensitivity tests. In conclusion, the developed real-time PCR method is a specific, sensitive and efficacious assay for the simultaneous detection of allergenic soybean and celery in food.

Key words: fluorescent real-time PCR, soybean, celery, allergenic detection