食品科学 ›› 2010, Vol. 31 ›› Issue (18): 220-223.doi: 10.7506/spkx1002-6630-201018050

• 分析检测 • 上一篇    下一篇

食品中杏仁过敏原成分的检测

张 霞,张海英,高旗利,刘 培,张宏伟,郑文杰   

  1. 天津出入境检验检疫局
  • 收稿日期:2009-11-18 修回日期:2010-04-28 出版日期:2010-09-25 发布日期:2010-12-29
  • 通讯作者: 张霞 E-mail:zhangxia_75@126.com
  • 基金资助:

    国家公益性行业科研专项(10-46-1)

Allergen Detection of Almond and Peach Seeds in Food

ZHANG Xia,ZHANG Hai-ying,GAO Qi-li,LIU Pei,ZHONG Hong-wei,ZHENG Wen-jie   

  1. Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300461, China
  • Received:2009-11-18 Revised:2010-04-28 Online:2010-09-25 Published:2010-12-29
  • Contact: ZHANG Xia E-mail:zhangxia_75@126.com

摘要:

目的:建立检测食品中桃仁、杏仁过敏原成分的荧光PCR 方法,比较国外3 种ELISA 试剂盒效果。方法:针对杏仁Pru du1 基因设计引物及探针,建立荧光PCR 方法。利用杏仁过敏原参考物质对3 个品牌的ELISA试剂盒的回收率进行比较。结果:建立的荧光PCR 方法,具有很好的特异性;灵敏度为10mg/kg。结论:桃仁及杏仁过敏原成分荧光PCR 检测方法特异性好、灵敏度高,对食品中过敏原的检测有重要的实际意义。

关键词: 杏仁, Pru du1 基因, 荧光定量PCR

Abstract:

Objectives: To establish a real-time PCR method for the detection of allergenic almond and peach seeds in food and compare with quantitative test kits for allergenic almond. Methods: On the basis of sequence analysis of the Pru du1 region, specific primers and probes were designed to develop a real-time PCR method using TaqMan probe for the identification of allergenic almond or peach seed residues in food. In order to compare with the test kits, recovery rates and detection limit of established real-time PCR were determined using the reference material of allergenic almond. Results: The established real-time PCR method was highly specific for the detection of allergenic almond. Its sensitivity was less than 10 mg/kg. Conclusion: The real-time PCR method is highly sensitive and specific, thereby providing an applicable method for the detection of allergenic almond and peach seeds in food.

Key words: almond, allergenic Pru du1 gene, fluorescence quantitative polymerase chain reaction

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