7Chibala I. Immobilized Enzymes [M]. New York, London, sydney, Toronto :Johy Wily and Sons, 1978.
8Wang S L Chio S H. Reversible immobilization of ehitinase via coupling to reversibly soluble polymer [J]. Enzyme Microb Technol, 1998, 22(7): 634-640.
9Trani M et al. Biotechnologv Letters. 1995, 17(10):1095 - 1098.
10Goto Met al. Biotechnology Letters. 1996. 18(7): 839 - 84.
