New modified Square Root and Schoolfield models for predicting bacterial growth rate as a function of temperature

Susan A. Alber, Donald W. Schaffner

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A new modified Square Root model and two new modified Schoolfield models were evaluated for their ability to predict the growth rate of Yersinia enterocolitica as a function of temperature. The new Square Root model fits the data better than both the original Square Root model and the Zwietering Square Root model. Both new Schoolfield models, a six-and a four-parameter equation, fit the data better than the original Schoolfield model. The new four-parameter Schoolfield model was developed by removing the term describing low temperature inactivation from the new six-parameter Schoolfield model. Inclusion of the two extra parameters in the new six-parameter Schoolfield model (F=318) did not significantly improve the fit compared to the new fourparameter Schoolfield model (F=488).

Original languageEnglish (US)
Pages (from-to)206-210
Number of pages5
JournalJournal of Industrial Microbiology
Volume12
Issue number3-5
DOIs
StatePublished - Sep 1993

All Science Journal Classification (ASJC) codes

  • Applied Microbiology and Biotechnology

Keywords

  • Predictive microbiology
  • Schoolfield model
  • Square Root model

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