Preparation of porous polyvinyl alcohol gel containing an immobi

Details Preparation of porous polyvinyl alcohol gel containing an immobi Preparation of porous polyvinyl alcohol gel containing an immobi

1985-10-25

1988-02-23

Naff, David M.

Chemistry: molecular biology and microbiology

Carrier-bound or immobilized enzyme or microbial cell;...

Enzyme or microbial cell is immobilized on or in an organic...

435176, 435177, 435180, C12N 1104, C12N 1114, C12N 1102, C12N 1108

Patent

active

047270306

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.

REFERENCES:
patent: 4148689 (1979-04-01), Hino et al.
patent: 4272617 (1981-06-01), Kaetsu et al.
patent: 4604354 (1986-08-01), Katz et al.
patent: 4617271 (1986-10-01), Nlambu
patent: 4634672 (1987-01-01), Baumgarten et al.

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