Experiment on Banana Vacuum Drying and Moisture Absorption

Abstract

In order to research the drying and adsorption characteristics of banana. Experiment on banana slice drying and absorption were analyzed in the article. The vacuum drying was used in the banana slice drying experiment. In drying experiment, moisture of banana slices decreased at 75°C in 151 minute. G1 weight decreased from 33.95g to 28.99g and G2 weight decreased from 33.51g to 28.8g. In absorption experiment, the weight of banana slice increased from 28.99g to 30.75g.When the humidity reached balance between the banana slice and the atmosphere, banana slice weigh had no changes. Banana slice surface has a huge difference in character before and after drying. The sorption process in some materials was irreversible because the entropy changed during the adsorption and desorption process.