Enzyme blend containing cellulase to control industrial slime

Details Enzyme blend containing cellulase to control industrial slime Enzyme blend containing cellulase to control industrial slime

1989-12-21

1991-02-19

Rosen, Sam

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Destruction of hazardous or toxic waste

435264, C12N 1118

Patent

active

049943901

ABSTRACT:
A method of attacking and removing microbial slime in slime covered surfaces and maintaining a slime-free surface as in exposed cooling tower surfaces and in waste water treatment and paper making. This method comprises utilizing an enzyme blend in 2 to 100 parts per million (ppm) of cellulase, alpha-amylase and protease. Such enzyme blends have been found specifically to digest microbial slime and reduce microbial attachment and biofilm. A specific combination of polysaccharide degrading enzymes is a ratio of 2 parts cellulase to 1 alpha-amylase to 1 protease utilized in 2-100 parts per million. Broadly, the alpha-amylase must be at least 1 and the protease may vary from 0.5 to 1 part.

REFERENCES:
Hoshino et al., Chem. Abst., vol. 104 (1986), p. 188,768z.
Hitachi Plant Eng. Const.-Derwent Abst. of Japanese Patent J6-3190-690-A (1988).
Unitika-Abst. Japanese Patent J5-0020-559 (1973).

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