then fitted to six thin-layer drying models (Table 1). Non-linear
regression analysis was used to estimate the parameters of those
six models. The statistical results from models are summarized
in Tables 2 and 3. The best model describing the thin-layer drying
characteristics of persimmon slices was chosen as the one with the
highest R2 values and the lowest v2 and RMSE values. The R2 values
of Lewis, Henderson and Pabis, Logarithmic, Page, Midilli et al., and
Weibull models were all above 0.98. The statistical parameter estimations
showed that R2, v2 and RMSE values were ranged from
0.9823 to 0.9998, 0.00001 to 0.00158 and 0.01004 to 0.14242,
respectively. Of all the models tested, the Midilli et al., Page and
Weibull models give the highest values of R2 and the lowest values
of v2 and RMSE. Generally R2, v2 and RMSE values of the selected
models in all experiments were varied between 0.9983–0.9998,