Detection of Pseudomonas aeruginosa in water samples using a novel synthetic medium and impedimetric technology

Autor: L. Soos, S. Bernáth, Gy. Csikó, M. Gyenes, L. Békési, T. Rétfalvi, Géza Szita
Rok vydání: 2007
Předmět:
Zdroj: Letters in Applied Microbiology. 45:42-46
ISSN: 1472-765X
0266-8254
Popis: Aims: To investigate whether the use of a novel synthetic medium in conjunction with impedimetric technology could provide a rapid and automated detection of Pseudomonas aeruginosa in water samples. Methods and Results: A selective synthetic medium (Z-broth) in which the only carbon and nitrogen source is acetamide was applied in direct impedimetric examination for the selective isolation of P. aeruginosa. A total of 1036 tap-water, well-water, swimming-pool water and dialysis water samples were investigated, and any P. aeruginosa contamination was detected in 7–24 h. Neither false-negative nor false-positive results were observed. Conclusions: The results of the present evaluation demonstrate that impedance measurement with the use of Z-broth is suitable for the rapid and automatic detection of P. aeruginosa in water. Significance and Impact of the Study: The main advantages of the method: 240 samples can be examined in one step, the procedure is fully automated, the results are obtained quickly and the labour and media requirements are low.
Databáze: OpenAIRE