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US 6,662,813 B1Granted
Cleaning methods and compositions for produce
AssigneeThe Procter & Gamble Company
InventorsBruce Prentiss Murch, Brian Joseph Roselle, Kyle David Jones
Life of this patent
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Abstract
Acidic and basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Clear liquid formulations comprising oleate, alcohol ethoxylates and buffers are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits.
Claims1
A method of cleaning produce using an article comprising a spray container which comprises a manually-activated, trigger-type spray means, suitable for use by an individual to clean produce, containing a cleaning solution which consists essentially of:
- (a) from about 0.1% to about 5% by weight of sodium oleate;
- (b) optionally, from about 0.1% to about 4% by weight of a nonionic surfactant;
- (c) optionally, from about 0.2% to about 4% by weight of organic polycarboxylate detergency builder;
- (d) optionally, a toxicologically-acceptable basic buffer;
- and
- (e) the balance being water or water-ethanol fluid, which has a pH of at least about 9.5 to about 12.5, comprising the steps of:
- spraying said cleaning solution onto the food product to be cleaned;
- rubbing;
- and either rinsing, wiping off with a suitable material, or rinsing and wiping off with a suitable material.
6 more elements
Dependencies are inferred from the claim text.