Volume 28, Issue 3 (9-2004)                   Research in Medicine 2004, 28(3): 215-218 | Back to browse issues page

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Detection of Listeria monocytogenes in milk by the polymerase chain reaction. Research in Medicine. 2004; 28 (3) :215-218
URL: http://pejouhesh.sbmu.ac.ir/article-1-113-en.html
Abstract:   (16122 Views)
Background: Listeria monocytogenes may be the cause of meningitis and sepsis. It is transmitted via food products. Precise detection of this organism would undoubtedly play a significant role in prevention of this infection. Materials and methods: Polymerase chain reaction method was developed for detection of Listeria monocytogenes in milk samples after enrichment culture. It consists of culturing samples in Listeria enrichment broth, followed by DNA extraction and detection of the organism sing PCR. Results: Dilutions of Listeria monocytogenes in milk were subjected to PCR amplification after enrichment culture. When determining the sensitivity of the method, it was found to be possible to detect 37 colony forming unit of the bacterium in milk. When this PCR method was applied to extract of DNA from different bacteria no PCR products were observed. Conclusion: The method was assessed as a sensitive, specific and time-saving way of detecting L. monocytogenes in milk samples.
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Type of Study: General | Subject: Interdisciplinary (Educational Management, Educational research, Statistics, Medical education
Received: 2003/11/27 | Published: 2004/09/15

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