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  • Title: [Detection of Staphylococcus aureus, Shigella spp., Salmonella spp. in food by multiplex PCR].
    Author: Li B, Chen F, Wang X, Shao Y.
    Journal: Wei Sheng Yan Jiu; 2008 Jul; 37(4):438-42. PubMed ID: 18839528.
    Abstract:
    OBJECTIVE: To establish a multiplex PCR method for simultaneous detection of Staphylococcus aureus, Shigella spp., Salmonella spp. in food. METHODS: Staphylococcus aureus was enriched by 7.5% NaCl broth while Shigella spp. and Salmonella spp. were enriched by GN medium . The primers were designed according to the gene nuc of Staphylococcus aureus, the gene ipaH of Shigella spp. and the gene invA of Salmonella spp. The target genes of these pathogens in food were amplified by multiplex PCR, which reaction conditions were optimized specifically. RESULTS: The multiplex PCR method established in this experment was of high specificity, which detection limit was 1 cfu/ml of Staphylococcus aureus, Shigella spp. and Salmonella spp. when the milk samples contaminated with these pathogens. CONCLUSION: The multiplex PCR method, which was rapid, convenient, and with high sensitivity, could be suitable for rapid detection of Staphylococcus aureus, Shigella spp., Salmonella spp. in food, and could have a great prospect.
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