Analyzing the time-to-detection – generation time relationship ofEscherichia coliAnálisis de la relación entre el tiempo de detección y el tiempo de generación deEscherichia coli

Autor: M. J. Castro, Emiliano J. Quinto, M. T. Mora, A. J.S. Eduardo
Rok vydání: 2011
Předmět:
Zdroj: CyTA - Journal of Food. 9:271-277
ISSN: 1947-6345
1947-6337
DOI: 10.1080/19476337.2011.596286
Popis: The relationship between the time-to-detection (TTD) and the generation time (GT) of Escherichia coli was studied under different pH values (4.5, 5.5, 6.5, and 7.4) and temperatures (30°C, 35°C, 37°C or 42°C). An adequate linear relationship was found between both parameters (R 2 = 0.899). The regression of the ratio ln(TTD/GT) only introduced the pH in the model. The validation of the model was carried out with a new dataset. Differences were observed at 30°C, and they increased with pH 5.5. The relative rate to detection (RRT) and the relative GT (RGT) were calculated. The results suggest that both are equivalent measures, so the GT could be obtained from the TTD and the RRD under optimal pH values. This conclusion would reinforce the initial statement, i.e. the relationship between the TTD and the GT. Se ha estudiado la relacion entre el tiempo de deteccion (TTD) y el tiempo de generacion (GT) de Escherichia coli bajo distintas condiciones de pH (4,5, 5,5, 6,7, y 7,4) y de temperatura (30, 35, 37 y 42°...
Databáze: OpenAIRE
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