Pet food preservation
AssigneeGeneral Foods Corporation
InventorsGerhard Julius Haas, Edwin Bernard Herman
Life of this patent
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Abstract
Disclosed is a process for preparing a protein-containing food wherein the use of a carbon dioxide packaging atmosphere is found to unexpectedly increase the effectiveness of edible aliphatic acids and their edible soluble salts, especially sorbate salts, employed for antimicrobial purposes. In the preferred embodiment, an intermediate moisture pet food containing cooked meat and employing a sorbate salt at a level less than that otherwise effective against mold or bacterial growth, is packaged in an atmosphere of carbon dioxide to provide a pet food stable against mold and bacterial growth.
Claims10
In a method for preparing an intermediate-moisture food comprising pasteurized meat and containing an antimicrobial agent selected from the group of linear aliphatic acids, their edible salts, and combinations thereof, the improvement comprising:
- packaging said food in a substantially gas impervious packaging material, and filling the free space in the package with carbon dioxide,
- said food containing a level of said antimicrobial agent which is ineffective in the absence of the carbon dioxide to prevent microbial growth, but effective to prevent microbial growth when the food is packaged in carbon dioxide.
In a method for preparing an intermediate-moisture proteinaceous food containing non-meat proteinaceous materials as the sole protein source and containing an antimicrobial agent selected from the group of linear aliphatic acids, their edible salts, and combinations thereof, the improvement comprising:
- packaging said food in a substantially gas impervious packaging material, and filling the free space in the package with carbon dioxide,
- said food containing a level of said antimicrobial agent which is ineffective in the absence of the carbon dioxide to prevent microbial growth, but effective to prevent microbial growth when the food is packaged in carbon dioxide.
Dependencies are inferred from the claim text.