An application by K. D. Murrell of the USDA-ARS Beltsville Agricultural Center, Maryland, USA, to patent a vaccine against Trichinella spiralis in pigs is reported. The vaccine is derived from killed larvae, and has been shown to induce up to 88% immunity.

In this process cheese milk is inoculated with protoplasts from lactic acid bacteria at concn. of 10⁸-10¹³/litre before addition of rennet. Preparation of the protoplast suspension is disclosed.

The described furanones are applied to food products by dipping, immersing or spraying. The furanones are possibly effective as growth inhibitors against Gram-positive bacteria such as Staphylococcus aureus, Bacillus cereus, Clostridium spp. and Micrococcus spp., and some Gram-negative bacteria...

Antibodies against bacteriophages are obtained by immunization of animals with antigens from bacteriophages active against lactic starter organisms. The antibodies are partially purified and then used in starters, milk or whey to neutralize the specific bacteriophage. The antibodies may be produced ...

Mastitis is treated by administration of Lactobacillus or Streptococcus spp., particularly L. acidophilus + L. casei. The lactobacilli are preferably given intramammarily emulsified in an oil such as maize oil, with 5% each of 2 emulsifiers as well as propylene glycol and an antioxidant. Sufficient ...

Cell wall removal (protoplasting) is avoided in the genetic transformation of lactic acid bacteria by incubating DNA and the lactic acid bacteria in a liquid medium including at least 5% (preferably 20-35%) of a water-soluble lower polyalkylene glycol such as polypropylene glycol to promote the...

A method is described for stabilizing or preserving acid-producing bacteria such as Lactobacillus spp. in a buffered solution, the preferred buffering agents being diammonium hydrogen phosphate, disodium hydrogen phosphate or ammonium bicarbonate. A carrier may be added that is not a specific...

A bacterial preparation for the prophylaxis of intestinal disturbances, especially salmonella infections, in poultry, is made by anaerobically cultivating either separately or together bacterial strains normally found in the alimentary tract, optionally in the presence of epithelial cells from the...

A nisin-producing recombinant Streptococcus lactis subsp. diacetylactis is claimed that contains foreign DNA encoding nisin production from a donor bacterium; the latter being a naturally occurring Streptococcus lactis containing plasmid DNA from a 29 Mdalton plasmid encoding sucrose utilization,...

Specific ketohexanoic acids are shown to inhibit growth of food poisoning and spoilage organism, e.g. 0.1% 4-ketohexanoic acid on Salmonella infantis and Aspergillus. Food products which would benefit from such treatment are those which have high water activity and are subjected to temp. abuse,...