Foaming composition of competitive exclusion microbes and methods of using same
The present invention relates to a composition including a microbial component and a foaming component, wherein the composition can be used to prevent the proliferation, or otherwise competitively exclude the continued growth of, undesirable microbes. The present invention also includes a method of using this composition.
1. A foamed composition comprising:
about 0.01 to about 10 wt-% of foaming surfactant comprising nonionic surfactant, anionic surfactant, and amphoteric surfactant, the amphoteric surfactant selected from the group consisting of acyl amino acid, N-alkyl amino acid, salt or ester thereof, and mixtures thereof;
about 0.05 to about 5 wt-% of a suspension comprising at least about 10 3 colony forming units (CFU)/ml of bacteria from the genus Enterococcus, Lactococcus, Hafnia , or mixture thereof;
and about 0.01-0.2 wt % of an ingredient selected from the group consisting of a sequestrant, builder, chelator, and mixtures thereof;
wherein the composition comprises foam;
the foamed composition being effective for reducing the population of an undesired microbe on a food processing surface.
2. The composition of claim 1 , wherein the bacteria comprises Enterococcus durans, Lactococcus lactis, Hafnia alvei , or mixture thereof.
3. The composition of claim 1 , wherein the nonionic surfactant comprises amine oxide, nonylphenol ethoxylate, or mixture thereof.
4. The composition of claim 1 , wherein the anionic surfactant comprises fatty alcohol ether sulfate, sodium dioctyl sulfosuccinate, sodium xylene sulfonate, or mixture thereof.
5. The composition of claim 1 , wherein the surfactant comprises alkanolamide.
6. The composition of claim 1 , wherein the surfactant is selected to maintain at least 2% of the bacteria viable 24 hours after foaming.
7. The composition of claim 1 , wherein the composition is of pH about 3 to about 10.
8. The composition of claim 2 , wherein the bacterial component comprises bacteria from the genus Hafnia , which comprise Hafnia alvei ; and the bacterial component further comprises Lactobacillus delbrueckii.
9. The composition of claim 1 , wherein the foamed composition is effective for reducing the population of an undesired microbe on a drain surface.