Thursday 30 March 2017

Performance of the Assurance GDS® Assay for the Detection of L. monocytogenes in Pure Cultures and Spiked Food Samples

Cultures and Spiked Food Samples

Listeria monocytogenes is afoodborne pathogen with significant impacts on public health and economy worldwide. Reliable and fast detection of L. monocytogenes is of major importance for both diagnostic laboratories and the food industry.

The current study evaluated the performance of the Assurance GDS® assay for the detection of L. monocytogenes in pure culturesand spiked food samples. In the pure culture experiments, the Assurance GDS® assay for Listeria monocytogenesaccurately detected the target strains of different serotypesand was correctly negative for a variety of other Listeria species.

For reliable detection of L. monocytogenes in pure culture experiments, colony counts >105 cfu/ml were required, which emphasizes the need for an adequate enrichment step.

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