dry

Prior to drying each fruit is selected on the basis of size and more than 90% maturity.

Experimental Procedure: Before drying all the varieties were pretreated separately with 2% solution of Potassium Meta bisulphate (PMBS) and 1% solution of Sodium benzoate (SB) were used for achieving high quality and less degradation.

Microwave energy is rapidly absorbed by water molecules which, consequently, results in rapid evaporation of water and thus higher drying rates, therefore microwave drying offers significant energy savings, with a potential reduction in drying times in addition to the inhibition of the surface temperature of the treated material [14].

Therefore, the present investigation was undertaken to study the specific energy consumption and physical quality for tomato slices during drying by hot air convection (HA), Infrared radiation (IR) and microwave drying (MW).

The drying trough and the built-in half-shell provision is always customized to comply with the customer's existing barrel technology.

The customer's requirement was to integrate drying into the existing duplex barrel line.

Key words: w timber drying, MC distribution, prong samples

The optimum drying process should be the main objective of industrial and scientific members and actually are focused on saving energy (e.g.

Pretreating fruits prior to drying is essential due to its benefits.

Effects of different pretreatments on drying characteristics of banana slices as conducted by Abano and Sam-Amoah (2011) revealed a minimum rehydration ratio of 1.215 for ascorbic acid treated slices and a maximum rehydration ratio of 1.716 for lemon juice treated samples.

This analysis showed that mixed mode drying with 1200W power electrical heater caused the grapes dry in a shorter time because the air temperature of drying chamber was higher and consequently evaporation rate and passive air flow rate increased.

The comparative evaluation shows that indirect solar drying with 600W electrical heater had a better color, flavor and taste.

The procedure was repeated for every 1 h interval till the end of drying. Their average moisture content was found to be 80.2% (wb).

Solar Drying. A solar drying unit was installed at the Green Energy Technology Innovation Park, Universiti Kebangsaan Malaysia, in 2010.