Drying Parameters of Half-Cut and Ground Figs (Ficus carica L.)‎ var. Mission and the Effect on Their Functional Properties

Abstract EN

Drying of ground and half-cut figs (Ficus carica L., var.

Mission) was investigated at three temperatures (45, 55, and 65°C).

Their effective moisture diffusivity (Deff) was estimated by using the slope method.

Deff values for ground figs were 5.15 × 10−10, 9.96 × 10−10, 1.07 × 10−9 m2 s−1 and for half cut figs 5.88 × 10−10, 1.66 × 10−9, and 2.08 × 10−9 m2 s−1 at 45, 55, and 65°C, respectively.

Dehydrating fig samples showed a similar behavior: higher Deff values at higher temperatures and activation energy (Ea) values in the range of other foodstuffs.

Half-cut figs needed about twice more energy and time than ground figs to carry out the dehydration; Ea values were 56.86 and 28.21 kJ mol−1, respectively.

The drying process increased the total phenolic content and degraded the anthocyanin content of figs; however, it enhanced the dried figs antioxidant activity.

Dehydrating ground figs was faster and maintained its functional properties better than half-cut figs.