The Study Of Water Absorption And Sorption 1sotierm (Desorption) Patterns Of Two Cultivars Of Pigeon Pea (Cajanus Cajan)

A BST R A CT Ihe research work was undertaken 10 study the moisture absorption and (leSo1'plion charactenstics of two cultivars of pigeon pea seeds at different tc iipe nil ii•es 3() °C.d() °C and 60°C) Dcsorption patterns at different relative humidities (RI-I of I 5-95%) were determined for the two cultivars. Results indicated that the dcsorptioii increased with increase in Relative humidity (RI-I). The two cuhlivars of pigeon pea seeds showed similarity in their equilibrium absorption lime which was af!cled by temperature. Rate Kinetic Value R of two cultivars was highest at 60C each having a value of 9.8 x 1 02. 'hlic two cuhti vars required 1 9-20h soak lug time for clehuhling treatment at 30°C but at 60°C the seed requires 15h as prc-soaking time for the attainment of equilibrium moisture content. To obtain the best flour, the sample should be preconditioned by soaking at 60°C for I 5h lOhIO\VC(I by subsequent drying.