Journal article
H2S papers as presumptive tests for Salmonella contamination in tropical drinking water
Water Science & Technology, Vol.34(7-8), pp.187-194
1996
Abstract
Coliform bacteria may not be adequate as sole indicators of recent faecal contamination in tropical waters. Salmonella spp. in particular have been found in tropical waters in the absence of traditional indicator bacteria. Remote areas without access to a laboratory have no opportunity for salmonellae analysis as portable tests are currently not available. H2S papers indicate the presence of hydrogen sulphide producing bacteria, a characteristic shared by the majority of Salmonella spp.. The potential of H2S papers to act as a presumptive test for salmonellae in the absence of coliform bacteria was assessed.
Salmonella spp. grew in the H2S medium, with an optimum incubation temperature of 37oC and a recommended length of incubation for a negative result of 48 hours. The presence of high numbers of the type of noncoliform bacteria commonly found in drinking water did not affect the performance of the H2S strips. H2S papers are recommended for use in conjunction with a coliform test as a presumptive test for the presence of Salmonella spp. in drinking water.
Details
- Title
- H2S papers as presumptive tests for Salmonella contamination in tropical drinking water
- Authors/Creators
- T. Gawthorne (Author/Creator) - Murdoch UniversityR.A. Gibbs (Author/Creator) - Murdoch UniversityK. Mathew (Author/Creator) - Murdoch UniversityG. Ho (Author/Creator) - Murdoch University
- Publication Details
- Water Science & Technology, Vol.34(7-8), pp.187-194
- Publisher
- International Water Association Publishing
- Identifiers
- 991005540852307891
- Copyright
- © 1996 International Association on Water Quality
- Murdoch Affiliation
- School of Environmental Science
- Language
- English
- Resource Type
- Journal article
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