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KMID : 0380420200440010001
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Journal of Prventive Veterinary Medicine
2020 Volume.44 No. 1 p.1 ~ p.4
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Quantitative assessment of the food-borne Salmonella contamination using a quantitative real-time polymerase chain reaction
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Cheong Ye-Won
Jung Ji-Seung
Lee Won-Jae
Lee Jun-Bong
Yoon Jang-Won
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Abstract
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Salmonella is one of the most important bacterial pathogens responsible for many zoonotic food-related infectious diseases. Quantitative detection of the foodborne Salmonella contamination in various food sources is therefore critical for preventing the related disease outbreaks. In this study, we developed and evaluated a reliable real-time polymerase chain reaction (RT-PCR) assay to detect the Salmonella contamination quantitatively. The experimental results showed that our invA gene-specific quantitative RT-PCR (qRT-PCR) assay provides a strong correlation between the Cq values and the direct plate counts of Salmonella species in the artificially formulated samples. Further study may be necessary to identify more accurate correlation and equation that can apply to Salmonella spp.
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KEYWORD
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Salmonella, qRT-PCR, Cq values, standard curve, correlation
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