Impact of beef extract used for sample concentration on the detection of Escherichia coli DNA in water samples via qPCR
2019; Elsevier BV; Volume: 168; Linguagem: Inglês
10.1016/j.mimet.2019.105786
ISSN1872-8359
AutoresBernardino Machado‐Moreira, Sílvia Monteiro, Ricardo Santos, Antonio Martı́nez-Murcia, Andreja Rajković, Nada Šmigić, Karl G. Richards, Florence Abram, Catherine M. Burgess,
Tópico(s)Molecular Biology Techniques and Applications
ResumoThere 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.
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