A rapid method for determining the tuberculocidal activity of liquid chemical germicides

Autor: Carl E. Cerniglia, Bruce D. Erickson, Warren L. Campbell
Rok vydání: 2000
Předmět:
Zdroj: Current microbiology. 43(2)
ISSN: 0343-8651
Popis: A rapid, quantitative method has been developed for determining the tuberculocidal activity of liquid chemical germicides. In this method, a test strain of Mycobacterium bovis that carries the firefly luciferase gene is exposed to a germicide, and the surviving bacteria are detected by bioluminescence. The tuberculocidal activities of five commercially available glutaraldehyde-based disinfectants were tested, and all reduced the number of surviving mycobacteria by greater than five orders of magnitude. In contrast, a phenol-based disinfectant with tuberculocidal claims gave less than one order of magnitude reduction of the test organism. With this method for determining tuberculocidal activity, results can be obtained in less than one day, compared with weeks or months for the standard tuberculocidal assays.
Databáze: OpenAIRE