Delivery Of Preservatives By Food Packaging

Abstract

A composition comprising a polymeric material and a preservative combination of 1) a preservative component selected from the salts of N α —(C 1 -C 18 ) acyl di-basic amino acid (C 1 -C 18 ) alkyl ester; 2) a second component selected from a food-safe solvent, food-safe nonionic surfactant or mixtures thereof; and optionally; 3) a third component consisting of an acyl mono-glyceride, wherein the preservative is diffusible from the polymeric material.

1 . A composition comprising a polymeric material and a preservative combination comprising 1) a preservative component selected from salts of N α —(C 8-18 ) acyl di-basic amino acid (C 1 -C 8 ) alkyl ester, and 2) a second component selected from a food-safe solvent with Hildebrand Solubility Parameter of at least 11, a food-safe surfactant with an HLB between 4.0 and 25, and mixtures thereof, wherein said preservative is diffusible from said polymeric material. 
     
     
         2 . The composition of  claim 1 , wherein said preservative combination further includes a third component consisting of an acyl mono-glyceride. 
     
     
         3 . The composition of  claim 2 , wherein said acyl mono-glyceride has an acyl chain length of between 8 and 16. 
     
     
         4 . The composition of  claim 3 , wherein said acyl mono-glyceride is glycerol monolaurate. 
     
     
         5 . The composition of  claim 1 , wherein said N α —(C 8-18 ) acyl di-basic amino acid (C 1 -C 8 ) alkyl ester is selected from N α —(C 8 -C 18 ) acyl lysine (C 1 -C 8 ) alkyl ester, N α —(C 8 -C 18 ) acyl arginine (C 1 -C 8 ) alkyl ester, N α —(C 1 -C 18 ) acyl ornithine (C 8 -C 18 ) alkyl ester, N α —(C 1 -C 8 ), acyl histidine (C 1 -C 8 ) alkyl ester and N α —(C 8 -C 18 ) acyl tryptophan (C 1 -C 8 ) alkyl ester. 
     
     
         6 . The composition of  claim 5 , wherein said N α —(C 8 -C 18 ) acyl di-basic amino acid (C 1 -C 8 ) alkyl ester is selected from salts of N α -lauroyl arginine ethyl ester and N α -cocoyl arginine ethyl ester. 
     
     
         7 . The composition of  claim 1 , wherein said salts of said preservative component include an inorganic anion selected from chloride, bromide and iodide. 
     
     
         8 . The composition of  claim 1 , wherein said salts of said preservative component include an organic anion selected from the group consisting of acetate, glycolate, lactate, propionate, gluconate, octonoate, decanoate, and ascorbate and its derivatives. 
     
     
         9 . The composition of  claim 1 , wherein said solvent of said second component is selected from the group consisting of glycerol, 1,2-propanediol, 1,3-propanediol and mixtures thereof. 
     
     
         10 . The composition of  claim 1 , wherein said surfactant is selected from the group consisting of sorbitan mono-caprate, sorbitan mono-caprylate, sorbitan mono-laurate, sorbitan mono-myristate, sorbitan mono-palmitate, sorbitan monostearate, sorbitan mono-oleate, ethoxylated sorbitan mono-caprate, ethoxylated sorbitan mono-caprylate, ethoxylated sorbitan monolaurate, ethoxylated sorbitan mono-myristate, ethoxylated sorbitan mono-palmitate, ethoxylated sorbitan monostearate, ethoxylated sorbitan mono-oleate and mixtures thereof. 
     
     
         11 . The composition of  claim 1 , wherein said preservative component is present in an amount of about 0.1% to about 80 wt. % of said preservative combination. 
     
     
         12 . The composition of  claim 1 , wherein said second component is present in an amount of about 0.1% to about 80 wt. % of said preservative combination. 
     
     
         13 . The composition of  claim 2 , wherein said third component is present in an amount of about 0.1 to about 50 wt. % of said preservative combination. 
     
     
         14 . The composition of  claim 1 , wherein said plastic polymer is selected from:
 linear or branched very low density, low density, medium density and high density polyethylene, polypropylene, polystyrene, ethylene vinyl acetate, polyethylene terephthalate (PET, PETE), polycarbonate, polyolefins, polycarbonate, metallocene-type polyethylene, polylactic acid, bioplastics based on starch, cellulose and polyester, polyvinylidene chloride, ionomers, polyamides, polyvinyl alcohols, cellulose and modified cellulose including chitosan, polypropylene copolymers, poly(ethylene-vinyl acetate) copolymers, polystyrene copolymers, polyvinyl chloride copolymers, polyvinylidene chloride copolymers, polyethylene terephthalate copolymers, polyvinyl acetate copolymers, polycarbonate copolymers, polyamides copolymers, polyvinyl alcohol copolymers, cellulose and modified cellulose copolymers including chitosan, and mixtures thereof.   
     
     
         15 . The composition of  claim 1 , wherein said polymeric material is in the form of a packaging film. 
     
     
         16 . A food packaging product comprising a polymeric material and a preservative combination comprising 1) a preservative component selected from salts of a N α —(C 8 -C 18 ) acyl di-basic amino acid (C 1 -C 8 ) alkyl ester; 2) a second component selected from a food-safe solvent with Hildebrand Solubility Parameter of at least 11, a food-safe nonionic surfactant with an HLB between 4.0 and 25 and mixtures thereof; and optionally 3) a third preservative component consisting of an acyl mono-glyceride. 
     
     
         17 . The food packaging product of  claim 16 , wherein said plastic polymer is selected from: linear or branched very low density, low density, medium density and high density polyethylene, polypropylene, polystyrene, ethylene vinyl acetate, polyethylene terephthalate (PET, PETE), polycarbonate, polyolefins, polycarbonate, metallocene-type polyethylene, polylactic acid, bioplastics based on starch, cellulose and polyester, polyvinylidene chloride, ionomers, polyamides, polyvinyl alcohols, cellulose and modified cellulose including chitosan, polypropylene copolymers, poly(ethylene-vinyl acetate) copolymers, polystyrene copolymers, polyvinyl chloride copolymers, polyvinylidene chloride copolymers, polyethylene terephthalate copolymers, polyvinyl acetate copolymers, polycarbonate copolymers, polyamides copolymers, polyvinyl alcohol copolymers, cellulose and modified cellulose copolymers including chitosan, and mixtures thereof. 
     
     
         18 . The food packaging product of  claim 16 , wherein said package is mono-layered or multi-layered. 
     
     
         19 . The food packaging product of  claim 16 , wherein said plastic polymer is present in an amount of about 90 to 99 wt. % of said packaging product, said preservative component is present in an amount of about 0. 01 to about 8 wt. % of said packaging product, said second component is present in an amount of about 0.01% to about 10 wt. % of said packaging product, and said third component is present in an amount of 0. 01% to about 5.0 wt. % of said packaging product. 
     
     
         20 . The food packaging product of  claim 16 , wherein said first component is selected from salts of N α -lauroyl arginine ethyl ester and N α -cocoyl arginine ethyl ester; said second component is a solvent selected from the group consisting of glycerol, 1,2-propanediol, 1,3-propanediol; a surfactant selected from sorbitan mono-caprate, sorbitan mono-caprylate, sorbitan mono-laurate, sorbitan mono-myristate, sorbitan mono-palmitate, sorbitan monostearate and sorbitan mono-oleate, ethoxylated sorbitan mono-caprate, ethoxylated sorbitan mono-caprylate, ethoxylated sorbitan mono-myristate, ethoxylated mono-palmitate, ethoxylated sorbitan monostearate, ethoxylated sorbitan mono-oleate and mixtures thereof, or a mixture of said solvent and said surfactant; and said third component is glycerol monolaurate.