EFFECT OF SUGAR SYRUP CONCENTRATION AND TEMPERATURE ON THE RATE OF OSMOTIC DEHYDRATION OF APPLES

The effect of different concentrations of sugar solution viz. 60 to 75%, different temperatures i.e. 40 to 80-degrees-C for different durations (0.5 to 4.5 hr) on the rate of osmosis of apple slices (d = 20 mm & ht = 15 mm) is reported here. Based on these results, an emperical equation was derived which can predict rate of osmosis (F), percentage of dehydration of any given fruit slices of specific size, time (T), given concentration of sugar (%B) and temperature (t) in the above referred parameters.