Metselaar_iso {bioinactivation}

Isothermal Metselaar model

Description

Returns the predicted logarithmic reduction in microbial count according to Metselaars's model for the time, temperature and model parameters given.

Usage

Metselaar_iso(time, temp, D_R, z, p, Delta, temp_ref)

Arguments

time

numeric indicating the time at which the prediction is taken.

temp

numeric indicating the temperature of the treatment.

D_R

numeric defining the delta-value at the reference temperature.

z

numeric defining the z-value.

p

numeric defining shape factor of the Weibull distribution.

Delta

numeric reparametrization factor

temp_ref

numeric indicating the reference temperature.

Value

A numeric with the predicted logarithmic reduction (log10(N/N0)).