The data of L*
, a*
, b*
and 'E were fitted to various kinetic models. It was found that the modified kinetic
model (second order polynomial equation) provided the best fit of the data of L*
and b*
. The zero-order kinetic model
was found to be the most suitable for describing the a*
data and this model was found to be effective for representing the
changes in 'E values. Both models could predict the color change during drying relatively well. The simulated results
showed that the drying air temperature and drying time affected the color change during the drying processes. The value
of L*
decreased when the drying time and temperature increased. The values of a*
, b*
and 'E increased in the first period
of drying afterwards these values decreased with drying time and drying air temperature.