Predictive models for the exponential growth rate (EGR) and germination, outgrowth, and lag times (GOL) of Bacillus stearothermophilus previously developed in our laboratory were expanded to include higher salt (1.5%) formulations. The expanded models were validated in 7 military meals-ready-to-eat incubated at temperatures from 45°C to 60°C, and tryptic soy broth incubated from 37.5°C to 70°C. The 95% prediction intervals for EGR were fail-safe in all the military rations tested. The 95% prediction intervals for GOL were fail-safe in 5 of the 7 rations. The TSB results illustrate the dangers of using empirical models to predict microbial behavior outside the range of conditions under which the models were developed.
|Original language||English (US)|
|Number of pages||7|
|Journal||Journal of Food Science|
|State||Published - Jan 1 2002|
All Science Journal Classification (ASJC) codes
- Food Science
- Bacillus stearothermophilus