Patents by Inventor Marianne F. Leverone

Marianne F. Leverone has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preventing psychrotrophic bacterial spoilage in raw milk
    Patent number: 4912047
    Abstract: An improved method for inhibiting psychrotrophic bacteria in raw milk is described. The method uses a non-lactose fermenting strain of a lactobacillus to generate hydrogen peroxide which inhibits the psychrotrophic bacteria. A preferred strain is Lactobacillus casei subspecies alactosus NRRL-B-12344 which is a superior producer of hydrogen peroxide at 5.degree. to 8.degree. C.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: March 27, 1990
    Assignee: Microlife Technics, Inc.
    Inventors: Mark A. Matrozza, Marianne F. Leverone, Donald P. Boudreaux
  • Bacterial composition for inhibiting psychrotrophic bacteria in cream or milk based products
    Patent number: 4880743
    Abstract: A bacterial composition including in admixture a lactic acid producing bacterium which produces diacetyl, particularly Streptococcus lactis subspecies diacetylactis and a Pediococcus which generates an antimicrobial metabolite at refrigeration temperatures which is used to inhibit psychrotrophic bacteria in a milk or cream based product without fermentation or significant increase in cell count is described. The composition preferably uses a Pediococcus pentosaceus which generates hydrogen peroxide as the metabolite.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: November 14, 1989
    Assignee: Microlife Technics, Inc.
    Inventors: Mark A. Matrozza, Marianne F. Leverone, Donald P. Boudreaux
  • Method for inhibiting food-borne human pathogens and preventing microbial spoilage in refrigerated foods using a Lactobacillus
    Patent number: 4874704
    Abstract: A method for inhibiting food-borne pathogen and spoilage microorganisms in processed foods using a Lactobacillus sp. which produces an antimicrobial substance at refrigeration temperatures is described. The method is particularly effective in inhibiting gas producing heterofermentative spoilage microorganisms, mold, food-borne pathogenic microorganisms, (Listeria and Salmonella) and phychrotrophic microorganisms which can occur in processed foods.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: October 17, 1989
    Assignee: Microlife Technics, Inc.
    Inventors: Donald P. Boudreaux, Mark A. Matrozza, Marianne F. Leverone
  • Method for inhibiting psychrotrophic bacteria in cream or milk based products using a pediococcus
    Patent number: 4790994
    Abstract: A method for inhibiting psychrotrophic bacteria in milk products such as Cottage cheese, particularly cream dressed Cottage cheese, using a Pediococcus is disclosed. The inhibition is produced by antimicrobial metabolites generated in the food without fermentation by live Pediococcus.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: December 13, 1988
    Assignee: Microlife Technics, Inc.
    Inventors: Mark A. Matrozza, Marianne F. Leverone, Donald P. Boudreaux