Toyo Jozo Company, Ltd.

Biomaterials Universe, Inc.

Koji Murata

Suong-Hyu Hyon

Yoshito Ikada

Fumihiro Ishimura

A porous gel containing an immobilized enzyme is prepared by mixing an aqueous solution of polyvinyl alcohol having a saponification degree of not lower than 95 mol% and an average polymerization degree of not lower than 1,000, with an enzyme or enzyme-producing cell, and activated carbon powder, pouring the mixture into a container of any desired form, gelating and molding the mixture by dehydrating it up to a dehydration ratio of not lower than 50%, immersing the resulting molding in water, and drying the immersed molding. Preferably, dehydrating is by leaving the mixture to stand at room temperature or a temperature of from 30.degree. C. to 40.degree. C. The enzyme or enzyme-producing cell may be mixed with or adsorbed on an inorganic or organic carrier. The dried molding may be granulated.

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Shizuoka, Japan

Koji Murata