Method of cleaning dairy pipelines using enzyme pretreatment
AssigneeWest Agro, Inc.
InventorAlan R. Monken
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Abstract
Improved, non-chlorinated systems and methods for removing soils from hard surfaces are provided wherein such surfaces are initially contacted with a first aqueous use dispersion including a protease enzyme, followed by contact the surface with a second aqueous acidic use dispersion. The enzyme dispersion preferably includes a polyol such as propylene glycol and in use is heated to a temperature up to about 120° C. The acid dispersion may include a surfactant and is also used in a heated condition. The two-component systems of the invention can be used for CIP treatment of dairy or other equipment in lieu chlorinated cleaning agents.
Claims46
A method of removing soils including proteinaceous and fat contaminants from a surface comprising the steps of:
- initially contacting said surface with a first aqueous use dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- thereafter contacting said surface with a second aqueous use dispersion including an acid and a surfactant.
A method of removing soils including proteinaceous and fat contaminants from a surface comprising the steps of:
- initially contacting said surface with a first aqueous use dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- thereafter contacting said surface with a second aqueous use dispersion including an acid selected from the group consisting of phosphoric, sulfuric, lactic, octanoic, hydrochloric, citric, hydroxyacetic, sulfamic, decanoic, propionic, nonanoic acids and mixtures thereof.
A system for removing soils including proteinaceous and fat contaminants from a surface, said system comprising:
- a first aqueous use dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- a second aqueous use dispersion including an acid and a surfactant.
A system for removing soils including proteinaceous and fat contaminants from a surface, said system comprising:
- a first aqueous use dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- a second aqueous use dispersion including an acid selected from the group consisting of phosphoric, sulfuric, lactic, octanoic, hydrochloric, citric, hydroxyacetic, sulfamic, decanoic, propionic, nonanoic acids and mixtures thereof.
A system for removing soils including proteinaceous and fat contaminants from a surface, said system comprising:
- a first aqueous dilutable concentrate dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- a second aqueous dilutable concentrate dispersion including an acid and a surfactant.
A system for removing soils including proteinaceous and fat contamionants from a surface, said system comprising:
- a first aqueous dilutable concentrate dispersion including an enzyme fraction, said enzyme fraction consisting essentially of a protease enzyme;
- and
- a second aqueous dilutable concentrate dispersion including an acid selected from the group consisting of phosphoric, sulfuric, hydrochloric, citric, hydroxyacetic, sulfamic, decanoic, propionic, nonanoic acids and mixtures thereof.
Dependencies are inferred from the claim text.