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Filtering by: Subject Staphylococcus Remove constraint Subject: Staphylococcus Academic Affiliation Microbiology Remove constraint Academic Affiliation: Microbiology

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  • Rapid, sensitive methods for enumeration and enterotoxin assay for Staphylococcus aureus

    Creator:
    Chugg, Lee Russon
    Abstract:
    A selective, differential plating medium for the enumeration of coagulase-positive staphylococci was developed. The ingredients of this medium were analysed for their effect on normal, heat treated and frozen staphylococcal cells. The nutrient base consisted of 10 gm Tryptone, 5 gm Beef Extract, 1 gm Yeast Extract and 17 gm...
    Resource Type:
    Dissertation
    Full Text:
    assay for Staphylococcus aureus AN ABSTRACT OF THE THESIS OF LEE RUSSON CHUGG for the DOCTOR OF

  • Serological detection of staphylococcal enterotoxin A in culture supernatants

    Creator:
    Nkanga, Enefiok James
    Abstract:
    A method has been presented for the observation of a large number of enterotoxin A producers. Production of a relatively concentrated toxin is achieved by the sac culture method. Further concentration, if needed, is carried out by PM-10 membrane ultrafiltration after centrifugation. The work is further improved by trypsinization of...
    Resource Type:
    Masters Thesis
    Full Text:
    human hands, nose, face, respiratory and gastrointestinal tract. Staphylococcus epidermidis is the

  • Methods of identifying food poisoning staphylococci

    Creator:
    Orth, Donald Simms
    Abstract:
    Several biochemical tests were studied to determine their correlation with coagulase activity. The lysozyme test was in perfect agreement with the coagulase test for the strains studied. Mannitol fermentation and egg yolk lipase tests were in agreement with the coagulase test for 96% of the coagulase positive strains. Sheep red...
    Resource Type:
    Masters Thesis
    Full Text:
    experimental animals. All but one of the known entero- toxigenic Staphylococcus cultures produced food

  • The inhibitory effect of Streptococcus diacetilactis on the growth of Staphylococcus aureus in milk and vanilla cream filling

    Creator:
    Radich, Ruth Elaine
    Abstract:
    Trypticase-Soy Broth (TSB) was inoculated with Streptococcus diacetilactis, incubated at 21C for 24 hours and centrifuged to remove the cells. When the spent TSB was inoculated with Staphylococcus aureus, it allowed 99.8% less growth than fresh TSB. If the spent TSB were supplemented with 0.08 μg/ml of niacinamide, this inhibition...
    Resource Type:
    Masters Thesis
    Full Text:
    INHIBITORY EFFECT OF STREPTOCOCCUS DIACETILACTIS ON THE GROWTH OF STAPHYLOCOCCUS AUREUS IN MILK AND VANILLA