Publication: Detection of Campylobacter DNA using magnetic nanoparticles coupled with PCR and a colorimetric end-point system
Issued Date
2016-02-01
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ISSN
12267708
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2-s2.0-84958245225
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Mahidol University
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SCOPUS
Bibliographic Citation
Food Science and Biotechnology. Vol.25, No.1 (2016), 193-198
Suggested Citation
Wuttichote Jansaento, Kulachart Jangpatarapongsa, Duangporn Polpanich, Wijit Wonglumsom Detection of Campylobacter DNA using magnetic nanoparticles coupled with PCR and a colorimetric end-point system. Food Science and Biotechnology. Vol.25, No.1 (2016), 193-198. doi:10.1007/s10068-016-0029-3 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/41436
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Title
Detection of Campylobacter DNA using magnetic nanoparticles coupled with PCR and a colorimetric end-point system
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Abstract
© 2016, The Korean Society of Food Science and Technology and Springer Science+Business Media Dordrecht. Campylobacter is an important food-borne pathogen causing acute gastroenteritis worldwide. Magnetic nanoparticle-based PCR coupled with streptavidin-horseradish peroxidase and a substrate was used for colorimetric detection. Forward primers conjugated to magnetic nanoparticles facilitated separation and concentration of Campylobacter DNA in a sample matrix. After PCR, a green color developed and was observed using the unaided eye, or detected using a spectrophotometer. High specificity and sensitivity of the 100 fg DNA/PCR reaction were achieved in pure culture experiments. The technique was applied for detection of Campylobacter on naturally contaminated chicken skin. All positive results were in agreement with results achieved using a conventional culture method. The magnetic nanoparticle-PCR-enzyme linked gene assay was practical and useful for detection of Campylobacter in complex matrices with PCR-interfering substances.