Method of cleaning dairy pipelines using enzyme pretreatment
AssigneeWest Agro, Inc.
InventorAlan R. Monken
Life of this patent
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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.
Claims52
A method of removing soils from a surface comprising the steps of:
- initially contacting said surface with a first aqueous use dispersion including 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 from a surface comprising the steps of:
- initially contacting said surface with a first aqueous use dispersion including 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 from a surface, said system comprising:
- a first aqueous use dispersion including a protease enzyme;
- and
- a second aqueous use dispersion including an acid and a surfactant.
A system for removing soils from a surface, said system comprising:
- a first aqueous use dispersion including 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 from a surface, said system comprising:
- a first aqueous dilutable concentrate dispersion including a protease enzyme;
- and
- a second aqueous dilutable concentrate dispersion including an acid and a surfactant.
A system for removing soils from a surface, said system comprising:
- a first aqueous dilutable concentrate dispersion including a protease enzyme;
- and
- a second aqueous dilutable concentrate dispersion including an acid selected from the group consisting of phosphoric, sulfuric, hydrochloric, citric, hydroxy-acetic, sulfamic, decanoic, propionic, nonanoic acids and mixtures thereof.
Dependencies are inferred from the claim text.