Abstract
We developed and validated the first direct multiplex real-time PCR assay with melt curve analysis for the identification of different types of meat. The assay detects six commonly eaten meat species and provides the following benefits: ease of use, shortened analysis time, and decreased analysis cost. Species-specific primers were designed from cytochrome b, cytochrome oxidase I, and 16S rRNA genes to generate PCR products with specific melting peaks that differentiate pork, beef, horsemeat, duck meat, ostrich meat, and chicken. Validation of the assay showed that it is robust, reproducible, specific, and sensitive down to 0.32ng of DNA template. It takes less than one hour from sample to result and costs less than one USD per sample. We also successfully amplified 92.5% of market samples, demonstrating the assay’s robustness. The developed assay has the potential to be implemented in food testing laboratories worldwide.
Published Version
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