Impact of beef extract used for sample concentration on the detection of Escherichia coli DNA in water samples via qPCR
Richards, Karl G.
Burgess, Catherine M.
Article (Published version)
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There is increasing interest in methodologies for the simultaneous concentration and detection of multiple targets in individual samples. The aim of this study was to investigate the potential presence of E. coli DNA in beef extract powder used as part of a procedure to concentrate water samples for the simultaneous detection of bacteria, viruses and protozoa. DNA from E. coli was detected in five out of six beef extract lots tested, demonstrating the limitations of its inclusion when being used in assays that will be used for the detection of E. coli in water samples. Further work is required to clarify if this phenomenon also occurs for other microorganisms of interest in water.
Source:Journal of Microbiological Methods, 2020, 168
- Elsevier, Amsterdam
Funding / projects:
- Protecting the health of Europeans by improving methods for the detection of pathogens in drinking water and water used in food preparation (EU-311846)
- Teagasc Walsh Fellowship