Compositions and methods for reducing the pathogen content of meat or meat products
Compositions and methods useful for reducing or eliminating the presence of pathogens in meat or meat products are disclosed. Administration of one or more lactic acid producing microorganisms to a live animal, to a carcass, to meat, to meat products, or in animal feed results in significant reductions in the amount of pathogens potentially harmful to humans when ingested. Synergistic effects can be achieved with the administration of multiple strains of microorganisms.
1. A composition comprising at least one lactic acid producing microorganism and meat or a meat product, said lactic acid producing microorganism being at least one strain selected from the group consisting of M35, LA45, LA51, L411, and D3, wherein said at least one lactic acid producing microorganism is present in said composition at a concentration of from about 10 4 colony forming unit (cfu) per gram of meat or meat product to about 10 10 cfu per gram of meat or meat product.
2. The composition of claim 1 , wherein the meat or meat product is unprocessed meat, fish, shellfish, or a processed meat material.
3. The composition of claim 2 , wherein the unprocessed meat is beef meat, pig meat, chicken meat, turkey meat, lamb meat, deer meat, buffalo meat, alligator meat, or snake meat.
4. The composition of claim 2 , wherein the fish is salmon, catfish, trout, flounder, haddock, cod, mackerel, tuna, swordfish, shark, or squid.
5. The composition of claim 2 , wherein the shellfish is clam, scallop, mussel, oyster, abalone, lobster, shrimp, crab, or crayfish.
6. The composition of claim 2 , wherein the processed meat material is ground beef, ground turkey, ground chicken, beef sausage, pork sausage, chicken sausage, hot dogs, or bologna.
7. The composition of claim 1 , wherein the composition is prepared by adding the lactic acid producing microorganism to the meat or meat product.
8. The composition of claim 1 , wherein the composition comprises two or more strains of lactic acid producing microorganisms.
9. The composition of claim 1 , wherein the lactic acid producing microorganism comprises a strain of Lactobacillus acidophilus.
10. The composition of claim 1 , wherein the lactic acid producing microorganism comprises the LA51 strain.
11. The composition of claim 1 , wherein the meat or meat product is derived from an animal carcass and the pathogen content of the meat or meat product is less than the pathogen content of the animal carcass.
12. The composition of claim 11 , wherein the animal carcass is a cattle carcass, a pig carcass, a chicken carcass, a turkey carcass, a lamb carcass, a deer carcass, a buffalo carcass, an alligator carcass, or a snake carcass.
13. The composition of claim 1 , wherein the pathogen content of the meat or meat product in said composition is less than the pathogen content of the same meat or meat product without the presence of the lactic acid producing microorganism.
14. The composition of claim 13 , wherein the pathogen is an E. coli pathogen, a Staphylococcus pathogen, or a Salmonella pathogen.
15. The composition of claim 13 , wherein the pathogen is Salmonella typhirium, Staphylococcus aureus , or E. coli O157:H7.