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A medium for the rapid enumeration of Escherichia coli in the presence of other faecal coliforms in tropical waters

Published online by Cambridge University Press:  25 March 2010

R. C. Wright
R. C. Wright
Affiliation:
Analytical Laboratory, Njala University College, P.M.B., Freetown, Sierra Leone
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Summary

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A selective membrane filtration medium is described for use in the rapid assessment of water quality in tropical countries where the incidence of faecal coliforms other than E. coli presents problems in the interpretation of results. The medium gives comparable results to MPN values obtained in the multiple tube dilution test using modified Gray's glutamate medium, and to membrane filtration counts obtained using M-FC broth and membrane-enriched Teepol broth, whilst differentiation of E. coli is enhanced.

Type
Research Article
Information
Journal of Hygiene , Volume 88 , Issue 2 , April 1982 , pp. 265 - 273
Copyright
Copyright © Cambridge University Press 1982

References

REFERENCES

A.P.H.A. (1981). Standard Methods for the Examination of Water and Wastewater, 15th ed.Washington: American Public Health Association, American Water Works Association and Water Pollution Control Federation.Google Scholar
Arnold, W. M. Jr. & Weaver, R. H. (1948). Quick microtechniques for the identification of cultures. I. Indole production. Journal of Laboratory and Clinical Medicine 33 (10) 1334–1337.Google ScholarPubMed
Barrell, R. A. E. & Rowland, M. G. M. (1979). The relationship between rainfall and well water pollution in a West African (Gambian) village. Journal of Hygiene 83, 143–150.CrossRefGoogle Scholar
Cowan, S. T. & Steel, K. J. (1965). Manual for the Identification of Medical Bacteria. Cambridge: University Press.Google Scholar
D.H.S.S. (1969). The Bacteriological Examination of Water Supplies. Report No. 71 of the Department of Health and Social Security, Welsh Office, Department of Environment, 4th ed.London: H.M.S.O.Google Scholar
Dutka, B. J. (1973). Coliforms are an inadequate index of water quality. Journal of Environmental Health 36 (1), 39–46.Google Scholar
Evison, L. M. & James, A. (1973). A comparison of the distribution of intestinal bacteria in British and East African water sources. Journal of Applied Bacteriology 36, 109–118.CrossRefGoogle Scholar
International Subcommittee on the Taxonomy of the Enterobacteriacbae (1963). Report of the Subcommittee. International Bulletin of Bacteriological Nomenclature and Taxonomy 13, 69–93.Google Scholar
Joint Committee of the Public Health Laboratory Service and the Standing Committee of Analysts (1980). Membrane filtration media for the enumeration of coliform organisms and Escherichia coli in water: comparison of Tergitol 7 and lauryl sulphate with Teepol 610. Journal of Hygiene 85, 181–191.CrossRefGoogle Scholar
Moussa, R. S. (1965). Type distribution of coliforms isolated from faecal and non-faecal habitats. Indian Journal of Medical Research 53 (7), 629–637.Google ScholarPubMed
W.H.O. (1971). International Standards for Drinking Water, 3rd ed.Geneva: World Health Organisation.Google Scholar
Wilson, G. S., Twigg, R. S., Wright, R. C., Hendry, C. B., Cowell, M. P. & Mair, I. (1935). The Bacteriological Grading of Milk, M.R.C. Special Report Series No. 206. London: H.M.S.O.Google Scholar