Prediction of the Growth of Salmonella Enteritidis in Raw Ground Beef at Various Combinations of the Initial Concentration of the Pathogen and Temperature
Biocontrol Science • 2015
Publication Information
Authors
HIROSHI FUJIKAWA, ISLAM I. SABIKE,
AND ABOBAKR M. EDRIS
Keywords
Salmonella / Ground beef / Growth prediction / Logistic model / Polynomial model.
Journal
Biocontrol Science
Publisher
J-STAGE
Volume
20
Issue
3
Pages
215-220
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
Recently we clarified the growth kinetics of Salmonella Enteritidis in raw ground beef at
various temperatures with our growth model. Based on those results, this study aimed to build
a new methodology to predict the growth of Salmonella in ground beef at given initial concentrations
of the pathogen and temperatures. Namely, the maximum cell population of Salmonella
at various combinations of its initial concentration and temperature was developed with a polynomial
equation. The rate constants of Salmonella growth at various temperatures were estimated
with the square root model studied in our recent study. A new system consisting of our
growth model, the polynomial equation, and the square root model successfully predicted the
growth of Salmonella inoculated at given concentrations in beef at constant and dynamic
temperatures. The growth of natural microflora in beef at those temperature patterns were also
successfully predicted with the growth model.
various temperatures with our growth model. Based on those results, this study aimed to build
a new methodology to predict the growth of Salmonella in ground beef at given initial concentrations
of the pathogen and temperatures. Namely, the maximum cell population of Salmonella
at various combinations of its initial concentration and temperature was developed with a polynomial
equation. The rate constants of Salmonella growth at various temperatures were estimated
with the square root model studied in our recent study. A new system consisting of our
growth model, the polynomial equation, and the square root model successfully predicted the
growth of Salmonella inoculated at given concentrations in beef at constant and dynamic
temperatures. The growth of natural microflora in beef at those temperature patterns were also
successfully predicted with the growth model.
Staff Members - Benha University