Numerical solution of a microbial growth model applied to dynamic environments.

Abstract:

:The Baranyi and Roberts model is one of the most frequently used microbial growth models. It has been successfully applied to numerous studies of various microorganisms in different food products. Under dynamic conditions, the model is implicitly formulated as a set of two coupled differential equations which could be numerically solved using the Runge-Kutta method. In this study, a simplified numerical solution of the coupled differential equations was derived and used to simulate microbial growth under dynamic conditions in Microsoft Excel. As expected, the results obtained were the same as those from solving the coupled differential equations using a MATLAB Solver. In addition, model parameters were accurately identified by fitting the numerical solution to simulated growth curves under dynamic (time-varying) temperature conditions using the Microsoft Excel Solver.

journal_name

J Microbiol Methods

authors

Zhu S,Chen G

doi

10.1016/j.mimet.2015.03.003

subject

Has Abstract

pub_date

2015-05-01 00:00:00

pages

76-82

eissn

0167-7012

issn

1872-8359

pii

S0167-7012(15)00082-2

journal_volume

112

pub_type

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