Explicit numerical solutions of a microbial survival model under nonisothermal conditions

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Abstract

Differential equations used to describe the original and modified Geeraerd models were, respectively, simplified into an explicit equation in which the integration of the specific inactivation rate with respect to time was numerically approximated using the Simpson's rule. The explicit numerical solutions were then used to simulate microbial survival curves and fit nonisothermal survival data for identifying model parameters in Microsoft Excel. The results showed that the explicit numerical solutions provided an easy way to accurately simulate microbial survival and estimate model parameters from nonisothermal survival data using the Geeraerd models.
Original languageEnglish
Pages (from-to)284-289
Number of pages6
JournalFood Science and Nutrition
Volume4
Issue number2
DOIs
StatePublished - Mar 1 2016

Keywords

  • Explicit
  • Geeraerd model
  • microbial survival
  • nonisothermal
  • numerical solutions
  • parameter identification

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