Table 7.
Coefficient values in the models describing the freeze drying of celery stems.
| Temperature | Equation | Coefficient | |||
|---|---|---|---|---|---|
| a | k | n | b | ||
| 40 °C | Newton | 0.005453 | |||
| Page | 0.000866 | 1.341947 | |||
| Henderson and Pabis | 1.079352 | 0.005863 | |||
| Logarithmic | 1.199114 | 0.004105 | −0.167331 | ||
| Wang and Singh | −0.003990 | 0.000004 | |||
| Logistic | 1.341249 | 0.010007 | 0.376062 | ||
| 60 °C | Newton | 0.008639 | |||
| Page | 0.002459 | 1.254195 | |||
| Henderson and Pabis | 1.061544 | 0.009134 | |||
| Logarithmic | 1.100403 | 0.007774 | −0.062254 | ||
| Wang and Singh | −0.006145 | 0.000009 | |||
| Logistic | 1.659136 | 0.013630 | 0.668080 | ||
| 80 °C | Newton | 0.010162 | |||
| Page | 0.003586 | 1.216927 | |||
| Henderson and Pabis | 1.042217 | 0.010559 | |||
| Logarithmic | 1.089738 | 0.008764 | −0.072520 | ||
| Wang and Singh | −0.007188 | 0.000013 | |||
| Logistic | 1.649052 | 0.015640 | 0.684655 | ||