Method for producing an edible prolamine coating from an aqueous latex
AssigneeOpta Food Ingredients, Inc.
InventorsStephen G. Haralampu, Stephen Sands, Akiva Gross
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Abstract
A continuous edible coating or barrier is formed on a substrate by applying to the substrate a water-based prolamine latex which is substantially free of organic solvent. Additives to the latex may be used to modify the properties of the coating or barrier.
Claims12
A method of providing a barrier to gases, water, water vapor or oil on a substrate by coating the surface of the substrate with an edible prolamine comprising applying to the substrate an aqueous prolamine latex consisting essentially of prolamine microparticles that have a median volume diameter of from about 0.10 microns to about 150 microns that are suspended in an aqueous medium to form an aqueous suspension which is substantially free of organic solvent, devoid of a dispersing agent and which has from about 5% by weight to about 40% by weight of prolamine microparticles that are insoluble in the aqueous medium, and drying the latex under conditions sufficient for the prolamine microparticles to fuse and form an edible continuous prolamine film on the surface of said substrate.
A method of providing a barrier to gases, water, water vapor or oil on a substrate by coating the surface of the substrate with an edible prolamine comprising:
- a) applying to the substrate an aqueous prolamine latex consisting essentially of an additive and prolamine microparticles that have a median volume diameter of from about 0.10 microns to about 150 microns that are suspended in an aqueous medium to form an aqueous suspension which is substantially free of organic solvent, devoid of a dispersing agent and which has from about 5% by weight to about 40% by weight of prolamine microparticles that are insoluble in the aqueous medium;
- wherein the additive is selected from the group consisting of waxes, oils, glycerides, proteins, flavors, colors, preservatives, anti-oxidants, hydrocolloids, glycerol and synthetic polymers;
- and
- b) drying the latex under conditions sufficient for the prolamine microparticles to fuse and form an edible continuous prolamine film on the surface of said substrate.
Dependencies are inferred from the claim text.