C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/1, 195/33.1
C02F 3/00 (2006.01) A01N 63/00 (2006.01) C02F 1/50 (2006.01) C02F 5/08 (2006.01) C02F 11/02 (2006.01) D21F 1/66 (2006.01)
Patent
CA 2001538
Case 4339 APPLICATION OF GLUCANASE TO CONTROL INDUSTRIAL SLIME Abstract of the Disclosure 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 beta-glucanase, alpha- amylase and protease. Glucanase has 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 beta-glucanase 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 .5 to 1 part.
Nalco Chemical Company
Smart & Biggar
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