Details

This is the fourth of five Demonstrations of functions used to model thermal processing of foods for the purpose of eliminating the presence of pathogenic and spoilage microorganisms. The five Demonstrations allow slider-control manipulation of the plots of:

1) an 8-parameter nonlinear "temperature profile", temperature (in degrees C) versus time (in minutes)

2) a 2-parameter nonlinear Weibullian rate, , as a function of temperature (in degrees C)

3) a 10-parameter nonlinear Weibullian rate, , as a function of time (in minutes)

4) an 11-parameter dynamic microbial log survival, , as a function of time (in minutes)

5) a 12-parameter equivalent isothermal time as a function of time (in minutes)

Please note that not all possible parameter combinations yield a realistic temperature profile and/or survival curve.

Snapshot 1: pasteurization

Snapshot 2: low temperature sterilization

Snapshot 3: insufficient heat process