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Improved detection methods and physiological studies of staphylococcal enterotoxin

Creator:: Kimble, Charles E.
Abstract:: The purpose of this study was to develop means to facilitate the detection of staphylococcal enterotoxin and to elucidate factors that influence enterotoxin formation. It was found that semipurification flat-gel electrophoresis in a water-cooled apparatus was more efficient than CM-cellulose and Sephadex column chromatography currently used to separate toxin from...
Resource Type:: Dissertation
Full Text:: from food slurries to which it had beep -,dcled in known quantities by use of carboxy- methyftellulose

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:: : METHODS OF IDENTIFYING FOOD POISONING STAPHYLO- COCCI Abstract approved: Redacted for Privacy Arth'ar W

Significance of pigments in radiation resistance of Micrococcus radiodurans

Creator:: Krabbenhoft, Kenneth Louis
Abstract:: An ecological study of a microorganism similar to that isolated in 1956 and designated as Micrococcus radiodurans indicated that the organism could be isolated from several different environments. By taking advantage of its radio-resistivity, high levels of gamma radiation were used in the isolation procedures to inactivate most of the...
Resource Type:: Dissertation
Full Text:: 1 REVIEW OF LITERATURE 4 Radiation - Use in Food Microbiology 4 Ionizing Radiation 5

A comparison of radiation induced lipid changes in Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa

Creator:: Ley, Ronald Douglas
Abstract:: Quantity variations in pigments and lipid classes were determined following γ-irradiation of Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa. Pigmentation was determined by extraction with organic solvents and measured as optical density at 475 mμ for M. radiodurans and S. lutea, and 410 mμ for Ps. E aetuginosa. Pigments of...
Resource Type:: Masters Thesis
Full Text:: . Radiosensitization of Streptococcus faecalis and Escherrchia coli. Journal of Food Science 29: 80 -86. 1964. 26

Control of furunculosis in Pacific salmon by immunization

Creator:: Overholser, Donald Lee
Abstract:: The purpose of this project was to study the possibility of controlling furunculosis in salmonid fish using immunological procedures. Antiserum with an agglutinating antibody titer of 1:20,480 against Aeromonas salmonicida was produced in a horse. This hyperimmune serum was used to passively immunize coho salmon, Oncorhynchus kitsutch, (jacks). However, this...
Resource Type:: Masters Thesis
Full Text:: ). Since a method of challenging the passive protection given adult coho jacks (Oncorhynchus kitsutch

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

Creator:: Neal, John Lloyd
Resource Type:: Masters Thesis
Full Text:: Influence of slash burning on microbial population and

Oral immunization for possible control of furunculosis in fish

Creator:: Frost, Gary Douglas
Abstract:: This project was initiated in an attempt to control furunculosis (Aeromonas salmonicida) in a production hatchery rearing coho salmon. An oral vaccine was prepared and administered to 520,000 juvenile coho salmon (Oncorhynchus kisutch) at the Siletz River Salmon Hatchery prior to the onset of a predictable naturally occurring epizootic of...
Resource Type:: Masters Thesis
Full Text:: . Immunization with vaccine -containing food was begun on March 26, 1967 with 14 consecutive days of initial

Host range and chemical composition of lactic streptococcal bacteriophages

Creator:: Henning, David Ralph
Abstract:: Comparisons were made of the abilities of Streptococcus lactis, Streptococcus cremoris and Streptococcus diacetilactis bacteriophages to endure various laboratory isolation and storage treatments. Neutralization of Cottage cheese whey containing phages offered no survival advantage over unneutralized samples, refrigeration of neutral and acid whey samples increased the survival of only the...
Resource Type:: Dissertation
Full Text:: a Dairy Products Laboratory, Department of Food Technology, Oregon State University. b Alpenrose

Distribution of Clostridium botulinum type E in fish, shellfish and the marine environment of the Pacific Northwest, and protein patterns of the toxigenic and non-toxigenic stains

Creator:: Craig, James Morrison
Abstract:: Interest in the distribution of Clostridium botulinum type E was heightened by the sudden outbreak of human botulism from smoked whitefish chubs and canned tuna fish in 1963. The question arose as to how widely the organism is distributed among fish and shellfish in the Northwest and what potential hazard...
Resource Type:: Dissertation
Full Text:: of the Pacific Northwest and the food products derived therefrom. All species of fish were examined

The role of methionine in the metabolism of Micrococcus radiodurans

Creator:: Deeney, Anne O'Connell
Resource Type:: Dissertation
Full Text:: compound, and would it be of any value in the protection of other biological systems against the

ScholarsArchive@OSU

Improved detection methods and physiological studies of staphylococcal enterotoxin

Methods of identifying food poisoning staphylococci

Significance of pigments in radiation resistance of Micrococcus radiodurans

A comparison of radiation induced lipid changes in Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa

Control of furunculosis in Pacific salmon by immunization

Influence of slash burning on microbial population and activities in a Douglas-fir forest soil

Oral immunization for possible control of furunculosis in fish

Host range and chemical composition of lactic streptococcal bacteriophages

Distribution of Clostridium botulinum type E in fish, shellfish and the marine environment of the Pacific Northwest, and protein patterns of the toxigenic and non-toxigenic stains

The role of methionine in the metabolism of Micrococcus radiodurans

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