Method of providing extended shelf life fresh meat products

• US 7,154,103 B2
• Filed: 07/22/2003
• Issued: 12/26/2006
• Est. Priority Date: 04/02/2001
• Status: Expired due to Fees

• Current Assignee: Mitec Incorporated
• Original Assignee: Mitec Incorporated
• Inventors: Koenck, Steven E., Kennedy, Von, Dalziel, Brian T.
• Primary Examiner(s): Wells, Nikita
• Assistant Examiner(s): Johnston, Phillip A.
• Application Number:
  US10/624,319
• Publication Number:
  US 20040126466A1
• Time in Patent Office: 1,253 Days
• Field of Search: 250/455.11
• US Class Current: 250/455.11
• CPC Class Codes: A23B 4/015 Preserving by irradiation or electric treatment without heating effect
• CPC Class Codes: A23B 4/16 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
• CPC Class Codes: A23B 4/20 Organic compounds; Microorganisms; Enzymes

Abstract

A method of providing extended shelf life fresh meat products involves irradiating the meat products in a first controlled atmosphere and packaging the irradiated meat products in a second controlled atmosphere. The packaged irradiated meat products are then distributed to a retail store. In an exemplary embodiment, the first controlled atmosphere excludes oxygen and the second controlled atmosphere is high in oxygen. In one particular embodiment of the present invention, an antioxidant is added to the meat products either prior to or following the step of irradiating the meat products in the first controlled atmosphere, to extend the color-life of the meat products.

Claims

1. A method of providing fresh meat products, comprising:

irradiating the meat products in a first controlled atmosphere;

packaging the irradiated meat products downstream from the irradiation area in a second controlled atmosphere having a modified oxygen concentration; and

distributing the packaged irradiated meat products to a retail store;

wherein the first controlled atmosphere excludes oxygen.

2. The method of claim 1, wherein the second controlled atmosphere is high in oxygen.

3. The method of claim 1, wherein the steps of irradiating the meat products in the first controlled atmosphere and packaging the irradiated meat products in the second controlled atmosphere are performed in the same meat packing facility.

4. The method of claim 1, further comprising:

adding an antioxidant to the meat products prior to the step of irradiating the meat products in the first controlled atmosphere.

5. The method of claim 4, wherein the antioxidant is a rosemary extract.

6. The method of claim 4, wherein the package irradiated meat products have a color-life of over three weeks.

7. The method of claim 6, wherein the retail store is a convenience store.

8. The method of claim 1, further comprising:

topically applying an antioxidant to the irradiated meat products prior to the step of packaging the irradiated meat products in the second controlled atmosphere.

9. The method of claim 8, wherein the antioxidant is a rosemary extract.

10. The method of claim 8, wherein the packaged irradiated meat products have a shelf-life and a color-life of over three weeks.

11. The method of claim 10, wherein the retail store is a convenience store.

12. The method of claim 1, wherein the retail store is a superstore that does not include an in-store meat processing department.

13. The method of claim 1, further comprising:

providing a clean curtain between a meat processing area where the step of irradiating meat products is performed and a meat packaging area where the step of packaging the irradiated meat products is performed.

14. The method of claim 1, wherein the step of irradiating meat products is performed in a sealed conduit having the first controlled atmosphere therein.

15. The method of claim 14, wherein the step of irradiating meat products comprises:

conveying the meat products to be irradiated through a processing area in the sealed conduit;

controlling the first controlled atmosphere in the sealed conduit to be different from an ambient atmosphere; and

applying radiation to the meat products in the processing area.

16. The method of claim 15, wherein the first controlled atmosphere in the sealed conduit excludes oxygen.

17. The method of claim 16, wherein controlling the first controlled atmosphere in the sealed conduit comprises filling the sealed conduit with a gas selected from the group consisting of nitrogen and carbon dioxide.