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http://dx.doi.org/10.5851/kosfa.2020.e80

Comparison of Seven Commercial TaqMan Master Mixes and Two Real-Time PCR Platforms Regarding the Rapid Detection of Porcine DNA  

Kang, Soo Ji (Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University)
Jang, Chan Song (Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University)
Son, Ji Min (Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University)
Hong, Kwang Won (Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University)
Publication Information
Food Science of Animal Resources / v.41, no.1, 2021 , pp. 85-94 More about this Journal
Abstract
A pig-specific real-time PCR assay based on the mitochondrial ND5 gene was developed to detect porcine material in food and other products. To optimize the performance of assay, seven commercial TaqMan master mixes and two real-time PCR platforms (Applied Biosystems StepOnePlus and Bio-rad CFX Connect) were used to evaluate the limit of detection (LOD) as well as the PCR efficiency and specificity. The LODs and PCR efficiencies for the seven master mixes on two platforms were 0.5-5 pg/reaction and 84.96%-108.80%, respectively. Additionally, non-specific amplifications of DNA from other animal samples (human, dog, cow, and chicken) were observed for four master mixes. These results imply that the sensitivity and specificity of a real-time PCR assay may vary depending on master mix and platform used. The best combination of master mix and real-time PCR platform can accurately detect 0.5 pg porcine DNA, with a PCR efficiency of 100.49%.
Keywords
master mix; real-time PCR; species identification; porcine DNA;
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