Water absorption capacity was determined by the method described by . This involved mixing 5g of each sample with 30ml of distilled water at temperatures of 25°C and 70°C. The mixture was stirred, allowed to stand for 30 minutes, and then centrifuged at 3000 rpm for 15 minutes. The supernatant was then decanted, and the increase in weight was noted. The water absorption capacity was then calculated as the grams of water bound per gram of sample.