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Filtering by: Subject Disinfection and disinfectants -- Oregon Degree Field Microbiology

Factors related to resisitance of bacteria to quaternary ammonium germicides

Creator:

Wang, Wei-sheng

Abstract:

This study was carried out to compare the effects of a quaternary ammonium compound (QAC) upon strains of Pseudomonas aeruginosa which were either sensitive or resistant to the germicide. The cationic QAC used was alkyldimethylbenzylammonium chloride. The resistant types were isolated from the sensitive population by selection of mutants which...

Resource Type:

Masters Thesis

Full Text:

methods. The Weber and Black method was used to determine the germicidal effect of QAC at a low
Factors affecting the germicidal activity of iodophor germicides

Creator:

Mosley, Elder Bishop

Resource Type:

Masters Thesis

Full Text:

human disease was not known and the importance of disinfection was not widely recognized. Lister, in
Some aspects of the mechanism of action of iodophor and other germicides on microorganisms

Creator:

Shikashio, Tommy Kiyoshi

Abstract:

The concentrations of iodophor necessary to reduce the activity of several metabolic enzyme systems 50 percent was used as the basic approach in attempts to elucidate the mechanism of germicidal action of iodine. For comparisons, a chlorine-releasing germicide (Trichlorocide) and a quaternary ammonium compound were also tested. It was found...

Resource Type:

Dissertation

Full Text:

below that normally used for disinfection and sanitation pur- poses, providing further evidence on the
Antimicrobial properties of a wine based disinfectant

Creator:

Waite, Joy G.

Abstract:

Wine has recently been shown to be a possible protective agent against microbial foodbome illness. The chemical environment of wine makes it difficult, if not impossible, for microorganisms to survive. The low pH, high concentration of organic acids, relatively high ethanol concentrations, and the potential for high levels of sulfur...

Resource Type:

Masters Thesis