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牛奶样品中志贺氏菌的快速PCR检测技术研究
引用本文:胡建华,李洁莉,马兆飞,陆玲.牛奶样品中志贺氏菌的快速PCR检测技术研究[J].食品科学,2007,28(8):433-437.
作者姓名:胡建华  李洁莉  马兆飞  陆玲
作者单位:1. 江苏省产品质量监督检验研究院,江苏,南京,210029
2. 南京师范大学生命科学学院微生物研究所,江苏,南京,210046
基金项目:国家质检总局质量技术监督科技基金
摘    要:建立牛奶中快速检测志贺氏菌的有效方法。根据GenBank公布的志贺氏菌ipaH基因的保守序列设计特异性引物,筛选合适的DNA模板制备方法,采用快速常规PCR和定量实时PCR结合,对培养液中及牛奶阳性样品中的志贺氏菌进行检测,检测敏感度可达到2CFU/ml,检出时间小于20h。新建的PCR方法具有特异性好,灵敏度高等特点,适用于快速、准确检测牛奶中志贺氏菌的需要。

关 键 词:志贺氏菌  牛奶
文章编号:1002-6630(2007)08-0433-05
修稿时间:2007-05-25

Detection of Shigella in Milk by Polymerase Chain Reaction (PCR) and Real-time PCR
HU Jian-hua,LI Jie-li,MA Zhao-fei,LU Ling.Detection of Shigella in Milk by Polymerase Chain Reaction (PCR) and Real-time PCR[J].Food Science,2007,28(8):433-437.
Authors:HU Jian-hua  LI Jie-li  MA Zhao-fei  LU Ling
Affiliation:1.Jiangsu Provincial Supervising and Testing Research Institute for Products Quality, Nanjing 210029, China ; 2.College of Life Science, Nanjing Normal University, Nanjing 210046, China
Abstract:To establish a rapid detection technique for Shigella in the milk.One set of specific primers were designed,according to the conserved area of ipaH gene published on GenBank,to detect Shigella by using a suitable template extraction method for the polymerase chain reaction (PCR) and real-time PCR.The sensitivity achieved was as high as to the 2CFU/ml and the detection time was less than 20 h. The new established method will be used to detect the Shigella in the milk rapidly and accurately.
Keywords:PCR  ipaH  Real-time PCR
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