Treatment of animal carcasses
First Claim
1. A method of treating an beef, pork, veal, buffalo, or lamb carcass to reduce a microbial population in resulting cut meat, the method comprising:
- diluting a concentrated antimicrobial composition containing about 20% to about 50% acetic acid and about 2% to about 15% peracetic acid with water or an aqueous diluent; and
spraying said beef, pork, veal, buffalo or lamb carcass with the diluted antimicrobial composition for at least about 10 seconds, the diluted antimicrobial composition comprising;
(i) an effective antimicrobial amount comprising between about 10 parts per million (ppm) and about 500 ppm of peracetic acid; and
(ii) an effective antimicrobial amount comprising between about 20 ppm and about 1000 ppm of acetic acid,thereby reducing the microbial population by at least one log10 reduction.
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Abstract
Described is a method of sanitizing animal carcasses using aqueous streams having an antimicrobial composition added to the stream. Preferably, the antimicrobial composition includes a mixture of one or more carboxylic acids having up to 18 carbon atoms and one or more peroxycarboxylic acids having up to 12 carbon atoms, preferably a mixture of a C2-C4 peroxycarboxylic acid and a C8-C12 peroxycarboxylic acid. Also described is a novel antimicrobial composition adapted for sanitizing animal carcasses containing a mixture of one or more C2-C4 peroxycarboxylic acids and one or more C8-C12 peroxycarboxylic acids and an alpha-hydroxy mono- or dicarboxylic acid.
257 Citations
19 Claims
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1. A method of treating an beef, pork, veal, buffalo, or lamb carcass to reduce a microbial population in resulting cut meat, the method comprising:
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diluting a concentrated antimicrobial composition containing about 20% to about 50% acetic acid and about 2% to about 15% peracetic acid with water or an aqueous diluent; and spraying said beef, pork, veal, buffalo or lamb carcass with the diluted antimicrobial composition for at least about 10 seconds, the diluted antimicrobial composition comprising; (i) an effective antimicrobial amount comprising between about 10 parts per million (ppm) and about 500 ppm of peracetic acid; and (ii) an effective antimicrobial amount comprising between about 20 ppm and about 1000 ppm of acetic acid, thereby reducing the microbial population by at least one log10 reduction. - View Dependent Claims (2, 3, 4, 5, 15, 16, 17)
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6. A method of treating a beef, pork, veal, buffalo or lamb carcass to reduce a microbial population in resulting cut meat, the method comprising:
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diluting a concentrated antimicrobial composition containing about 20% to about 50% acetic acid and about 2% to about 15% peracetic acid with water or an aqueous diluent; spraying the diluted antimicrobial composition onto said carcass at a pressure of at least about 50 psi at a temperature of up to about 60°
C. resulting in a contact time of at least about 30 seconds, the diluted antimicrobial composition comprising an effective antimicrobial amount comprising between about 10 parts per million (ppm) and about 500 ppm of peracetic acid and between about 20 ppm and about 1000 ppm of acetic acid; andachieving at least a one log10 reduction in the microbial population. - View Dependent Claims (7, 8, 18)
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9. A method of treating a beef, pork, veal, buffalo or lamb carcass to reduce a microbial population in resulting cut meat, the method comprising:
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diluting a concentrated antimicrobial composition containing about 20% to about 50% acetic acid and about 2% to about 15% peracetic acid with water or an aqueous diluent, and treating said carcass with the diluted antimicrobial composition for at least about 10 seconds, the diluted antimicrobial composition comprising; (i) an effective antimicrobial amount comprising between about 10 parts per million (ppm) and about 500 ppm of peracetic acid; (ii) an effective antimicrobial amount comprising between about 20 ppm and about 1000 ppm of acetic acid; and (iii) a thickener or gel agent, whereby the treatment reduces the microbial population by at least one log10 reduction. - View Dependent Claims (10, 11, 12, 13, 14, 19)
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Specification