Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks

• US 20050224419A1
• Filed: 01/18/2005
• Published: 10/13/2005
• Est. Priority Date: 04/13/2004
• Status: Abandoned Application

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Patton, David L., Bringley, Joseph F., Harrison, William J., Wien, Richard W., Lerat, Yannick J.F.
• Application Number:
  US11/037,319
• Publication Number:
  US 20050224419A1
• Time in Patent Office: Days
• US Class Current: 210/681
• CPC Class Codes: A23F 3/20 Removing unwanted substances A23F3/166 takes precedence; reducing or removing alkaloid content A23F3/38
• CPC Class Codes: A23L 2/70 Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
• CPC Class Codes: A23V 2002/00 Food compositions, function of food ingredients or processes for food or foodstuffs
• CPC Class Codes: A23V 2200/25 Nanoparticles, nanostructures
• CPC Class Codes: B01D 15/00 Separating processes involving the treatment of liquids with solid sorbents using liquid sorbents B01D11/00; ion exchange processes or materials, sorbent materials in general B01J, e.g. sorbents for chromatography B01J20/281; for investigating or analysing materials G01N30/00; Apparatus therefor
• CPC Class Codes: B01J 45/00 Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties ion-exchange chromatography processes B01D15/36
• CPC Class Codes: B01J 47/00 Ion-exchange processes in general; Apparatus therefor ion-exchange chromatography processes or apparatus B01D15/08
• CPC Class Codes: C02F 1/02 by heating methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D
• CPC Class Codes: C02F 1/42 by ion-exchange ion-exchange in general B01J
• CPC Class Codes: C02F 1/50 by addition or application of a germicide or by oligodynamic treatment C02F1/4606, C02F1/467, C02F1/76 take precedence
• CPC Class Codes: C02F 1/505 by oligodynamic treatment
• CPC Class Codes: C02F 1/683 by addition of complex-forming compounds
• CPC Class Codes: C02F 2101/20 Heavy metals or heavy metal compounds
• CPC Class Codes: C02F 2303/04 Disinfection
• CPC Class Codes: C12H 1/14 with non-precipitating compounds, e.g. sulfiting; Sequestration, e.g. with chelate-producing compounds

Abstract

A method of removing a selected two or more different metal-ion sequestering agents for removing one or more designated metal ions. The method includes subjecting a liquid to a first metal-ion sequestering agent for removing a first designated metal ion prior to placing the liquid in a container; providing the container for holding the liquid, the container having an internal surface having a second metal-ion sequestering agent provided on at least a portion of the internal surface for removing a second designated metal-ion from the liquid; filling the container with the liquid in an open environment; and closing the container with the liquid contained therein.

Claims

1. A method of removing a selected metal-ion from a solution, comprising the steps of:

a. subjecting a liquid to a first metal-ion sequestering agent for removing a first designated metal ion prior to placing said liquid in a container;

b. providing said container for holding said liquid, said container having an internal surface having a second metal-ion sequestering agent provided on at least a portion of said internal surface for removing a second designated metal-ion from said liquid;

c. filling said container with said liquid in an open environment; and

d. closing said container with said liquid contained therein.

2. The method according to claim 1 wherein after closing said container, said container is subjected to heating and cooling process less than normally required for sterilization of said liquid.

3. The method according to claim 1 wherein said first and second designated metal ions are the same, and wherein said subjecting said liquid to said first designated metal-ion sequestering agent reduces said first metal ion concentration in said liquid to a first level and second designated metal-ion sequestering agents reduces the concentration of said first metal ion in said liquid to a second lower level.

4. The method according to claim 1 wherein said first designated metal ion is different from said second designated metal ion.

5. The method according to claim 1 wherein said first designated metal ion is the same as said second designated metal ion.

6. The method according to claim 4 wherein said first designated metal ion comprises Mg.

7. The method according to claim 6 wherein said second designated metal ion comprises Fe.

8. The method according to claim 1 wherein said first designated metal ion comprises two or more metal ions.

9. The method according to claim 8 wherein said two or more metal ions comprise Fe and Mg.

10. The method according to claim 8 wherein said two or more metal ions are selected from the following group:

Fe, Mg, Zn, Ca, Cu and Mn.

11. The method according to claim 1 wherein said container comprises a bottle and cap assembly.

12. The method according to claim 11 wherein said bottle is made of a plastic material.

13. The method according to claim 11 wherein said second metal-ion sequestering agent is provided on the internal surface of said bottle.

14. The method according to claim 11 wherein said bottle is made of a material that includes said second metal-ion sequestering agent.

15. The method according to claim 11 wherein said second metal-ion sequestering agent is provided on the internal surface of said cap.

16. The method according to claim 1 wherein said liquid has a H equal to or greater than about 3.

17. A method according to claim 1 wherein said first and/or second metal ion sequestering agents include an antimicrobial agent.

18. The method according to claim 17 wherein said antimicrobial agent comprises an antimicrobial active material selected from benzoic acid, sorbic acid, nisin, thymol, allicin, peroxides, imazalil, triclosan, benomyl, metal-ion release agents, metal colloids, anhydrides, and organic quaternary ammonium salts, a metal ion exchange reagents such as silver sodium zirconium phosphate, silver zeolite, or silver ion exchange resin.

19. The method according to claim 1 wherein said second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III).

20. The method according to claim 1 wherein said second metal ion sequestering agent is immobilized on the surface(s) of said container and has a high-affinity for biologically important metal-ions such as Mn, Zn, Cu and Fe.

21. The method according to claim 1 wherein said first or second sequestering agent has a high-selectively for certain metal-ions but a low-affinity for at least one other ion.

22. The method according to claim 1 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III) and said antimicrobial agent comprises an antimicrobial active material selected from benzoic acid, sorbic acid, nisin, thymol, allicin, peroxides, imazalil, triclosan, benomyl, metal-ion release agents, metal colloids, anhydrides, and organic quaternary ammonium salts.

23. The method according to claim 1 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10²⁰ with iron (III).

24. The method according to claim 1 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III) and said antimicrobial agent comprises a metal ion selected from one of the following:

silver;

copper;

gold;

nickel;

tin;

zinc.

25. The method according to claim 1 wherein said first or second metal-ion sequestering agent comprises derivatized nanoparticles comprising inorganic nanoparticles having an attached metal-ion sequestrant, wherein said inorganic nanoparticles have an average particle size of less than 200 nm and the derivatized nanoparticles have a stability constant greater than 10¹⁰ with iron (III).

26. The method according to claim 1 wherein said subjecting said liquid to said first metal-ion sequestering agent occurs in an ion bed exchange device.

27. The method according to claim 1 wherein said subjecting said liquid to said first metal-ion sequestering agent occurs in a filter device.

28. A method of removing a selected two or more different metal-ions from a solution, comprising the steps of:

a. subjecting a liquid to a first metal-ion sequestering agent for removing a first designated metal ion prior to placing said liquid in a container;

b. providing said container for holding said liquid, said container having an internal surface having a second metal-ion sequestering agent provided on at least a portion of said internal surface for removing a second designated metal-ion from said liquid, said second designated metal ion being different from said first designated metal ion;

c. filling said container with said liquid in an open environment; and

d. closing said container with said liquid contained therein.

29. The method according to claim 28 wherein after closing said container, said container is subjected to heating and cooling process less than normally required for sterilization of said liquid.

30. The method according to claim 28 wherein said first metal-ion sequestering agent also removes said second designated metal ion, subjecting said liquid to said first designated metal-ion sequestering agent reducing said second metal ion concentration in said liquid to a first level and second designated metal-ion sequestering agents reduces the concentration of said second designated metal ion in said liquid to a second lower level.

31. The method according to claim 28 wherein said first designated metal ion comprises Mg.

32. The method according to claim 31 wherein said second designated metal ion comprises Fe.

33. The method according to claim 28 wherein said container comprises a bottle and cap assembly.

34. The method according to claim 33 wherein said bottle is made of a plastic material.

35. The method according to claim 33 wherein said second metal-ion sequestering agent is provided on the internal surface of said bottle.

36. The method according to claim 33 wherein said bottle is made of a material that includes said second metal-ion sequestering.

37. The method according to claim 33 wherein said second metal-ion sequestering agent is provided on the internal surface of said cap.

38. The method according to claim 28 wherein said liquid has a pH equal to or greater than about 3.

39. A method according to claim 28 wherein said first and/or second metal ion sequestering agents include an antimicrobial agent.

40. The method according to claim 39 wherein said antimicrobial agent comprises an antimicrobial active material selected from benzoic acid, sorbic acid, nisin, thymol, allicin, peroxides, imazalil, triclosan, benomyl, metal-ion release agents, metal colloids, anhydrides, and organic quaternary ammonium salts, a metal ion exchange reagents such as silver sodium zirconium phosphate, silver zeolite, or silver ion exchange resin.

41. The method according to claim 28 wherein said second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III).

42. The method according to claim 28 wherein said second metal ion sequestering agent is immobilized on the surface(s) of said container and has a high-affinity for biologically important metal-ions such as Mn, Zn, Cu and Fe.

43. The method according to claim 28 wherein said first or second sequestering agent has a high-selectively for certain metal-ions but a low-affinity for at least one other ion.

44. The method according to claim 28 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III) and said antimicrobial agent comprises an antimicrobial active material selected from benzoic acid, sorbic acid, nisin, thymol, allicin, peroxides, imazalil, triclosan, benomyl, metal-ion release agents, metal colloids, anhydrides, and organic quaternary ammonium salts.

45. The method according to claim 28 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10²⁰ with iron (III).

46. The method according to claim 28 wherein said first or second metal-ion sequestering agent is immobilized on the surface(s) of said container and has a stability constant greater than 10¹⁰ with iron (III) and said antimicrobial agent comprises a metal ion selected from one of the following:

silver;

copper;

gold;

nickel;

tin;

zinc.

47. The method according to claim 28 wherein said first or second metal-ion sequestering agent comprises derivatized nanoparticles comprising inorganic nanoparticles having an attached metal-ion sequestrant, wherein said inorganic nanoparticles have an average particle size of less than 200 nm and the derivatized nanoparticles have a stability constant greater than 10¹⁰ with iron (III).

48. The method according to claim 28 wherein said subjecting said liquid to said first metal-ion sequestering agent occurs in an ion bed exchange device.

49. The method according to claim 28 wherein said subjecting said liquid to said first metal-ion sequestering agent occurs in a filter device.