The kinetic parameters for the hydrolysis of maltodextrin by free and immobilized glucoamylase were also determined. The Km values for free and immobilized enzyme were 7.5 and 10.1 g maltodextrin/l, respectively. The Vmax values for free and immobilized enzyme were estimated as 20 and 16 μmol glucose/(min μl enzyme), respectively. The newly developed method is simple yet effective and could be used for the immobilization of some other enzymes.