Statistical model fitting Escherichia coli survival data during starvation in artificial sea water

F. Utzet; R. López; O. Julià; J. Vives-Rego

Statistical model fitting Escherichia coli survival data during starvation in artificial sea water

F. Utzet, R. López, O. Julià, J. Vives-Rego

Department of Mathematics

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

The survival of Escherichia coli in artificial sea water was studied using linear and nonlinear regression analysis in order to fit the simplest model. The surviving population was evaluated in a rich medium, and two mathematical models, monophase and diphase linear, were considered. The diphase model gave the best fit, although both models can be adjusted to the results obtained. The criteria applied to decide which model was more statistically significant, were residuals, the residual sum of squares and the coefficient of determination. These models are discussed in the light of present day knowledge on survival.

Original language	English
Pages (from-to)	45-53
Journal	Microbios
Volume	88
Issue number	354
Publication status	Published - 1 Dec 1996

Keywords

Artificial sea water
Escherichia coli
Monophasic and diphasic linear models
Mortality
Survival

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title = "Statistical model fitting Escherichia coli survival data during starvation in artificial sea water",

abstract = "The survival of Escherichia coli in artificial sea water was studied using linear and nonlinear regression analysis in order to fit the simplest model. The surviving population was evaluated in a rich medium, and two mathematical models, monophase and diphase linear, were considered. The diphase model gave the best fit, although both models can be adjusted to the results obtained. The criteria applied to decide which model was more statistically significant, were residuals, the residual sum of squares and the coefficient of determination. These models are discussed in the light of present day knowledge on survival.",

keywords = "Artificial sea water, Escherichia coli, Monophasic and diphasic linear models, Mortality, Survival",

author = "F. Utzet and R. L{\'o}pez and O. Juli{\`a} and J. Vives-Rego",

year = "1996",

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language = "English",

volume = "88",

pages = "45--53",

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T1 - Statistical model fitting Escherichia coli survival data during starvation in artificial sea water

AU - Utzet, F.

AU - López, R.

AU - Julià, O.

AU - Vives-Rego, J.

PY - 1996/12/1

Y1 - 1996/12/1

N2 - The survival of Escherichia coli in artificial sea water was studied using linear and nonlinear regression analysis in order to fit the simplest model. The surviving population was evaluated in a rich medium, and two mathematical models, monophase and diphase linear, were considered. The diphase model gave the best fit, although both models can be adjusted to the results obtained. The criteria applied to decide which model was more statistically significant, were residuals, the residual sum of squares and the coefficient of determination. These models are discussed in the light of present day knowledge on survival.

AB - The survival of Escherichia coli in artificial sea water was studied using linear and nonlinear regression analysis in order to fit the simplest model. The surviving population was evaluated in a rich medium, and two mathematical models, monophase and diphase linear, were considered. The diphase model gave the best fit, although both models can be adjusted to the results obtained. The criteria applied to decide which model was more statistically significant, were residuals, the residual sum of squares and the coefficient of determination. These models are discussed in the light of present day knowledge on survival.

KW - Artificial sea water

KW - Escherichia coli

KW - Monophasic and diphasic linear models

KW - Mortality

KW - Survival

M3 - Article

VL - 88

SP - 45

EP - 53

IS - 354

ER -