Preparation of porous polyvinyl alcohol gel containing an immobilized enzyme
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United States of America Patent
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Feb 23, 1988
Grant Date -
N/A
app pub date -
Oct 25, 1985
filing date -
Oct 26, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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