Development of a triplex PCR assay for the specific detection of Campylobacter jejuni, Salmonella spp., and Escherichia coli O157:H7

被引:34
|
作者
Gilbert, C [1 ]
Winters, D [1 ]
O'Leary, A [1 ]
Slavik, M [1 ]
机构
[1] Univ Arkansas, Ctr Excellence Poultry Sci, Dept Poultry Sci, Fayetteville, AR 72701 USA
关键词
Campylobacter jejuni; Escherichia coli O157 : H7; Salmonella; multiplex PCR; detection;
D O I
10.1016/S0890-8508(03)00043-4
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A triplex PCR assay was developed and evaluated for efficacy in detecting Campylobacter jejuni, Salmonella spp., and Escherichia coli O157:H7 in a variety of raw and ready-to-eat food products. Following a short enrichment period, artificially contaminated food samples were subjected to a triplex PCR assay, which incorporated published primers for each food pathogen, a protocol for sample collection, and a PCR procedure designed specifically for the assay. The selected primers amplified fragment sizes of 159 bp, 252 bp, and 360 by for C. jejuni, E. coli O157:H7, and Salmonella spp., respectively. This assay provides specific and reliable results and allows for the cost-effective detection of all three bacterial pathogens in one reaction tube. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:135 / 138
页数:4
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