Thin-layer drying of tomato (Lycopersicum esculentum Mill. cv. Rio Grande) slices in a convective hot air dryer

Abstract

The effects of different drying temperatures on the drying kinetics of tomato slices were investigated using a cabinet-type dryer. The experimental drying data were fitted best to the to the Page and Modified Page models apart from other theoretical models to predict the drying kinetics. The effective moisture diffusivities varied from 1.015 x 10 -9 to 2.650 x 10 -9 m 2 s -1over the temperature range studied, and activation energy was 22.981 kJ mol -1. © Springer-Verlag 2011.