Enzyme-containing granules coated with hydrolyzed polyvinyl alco

Details Enzyme-containing granules coated with hydrolyzed polyvinyl alco Enzyme-containing granules coated with hydrolyzed polyvinyl alco

1992-10-07

1994-06-28

Naff, David M.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Preparing granular- or free-flowing enzyme composition

25217412, 252DIG12, 435175, 435176, 435177, 435180, 435182, 435264, C12N 998, C12N 1108, C11D 1000, D06M 1600

Patent

active

053246497

ABSTRACT:
A granular enzyme composition is produced, having reduced tendencies to form dust and leave residue, and exhibiting improved stability and delayed release characteristics. The granular composition comprises a core, an enzyme layer and an outer coating layer. The enzyme layer, and optionally the core and outer coating layer, contain a vinyl polymer. The vinyl polymer is preferably a hydrolyzed polyvinyl alcohol or copolymer thereof. The hydrolyzed polyvinyl alcohol has varying degrees of hydrolysis in the core, enzyme layer and outer coating layer. Also disclosed are methods for making such enzyme-containing granules, the methods having greatly reduced processing time.

REFERENCES:
patent: 3798128 (1974-03-01), Munato et al.
patent: 4009076 (1977-02-01), Green et al.
patent: 4689297 (1987-08-01), Good et al.
patent: 4707287 (1987-11-01), Herdeman
patent: 4898781 (1990-02-01), Onouchi et al.

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