Coliform species recovered from untreated surface water and drinking water by the membrane filter, standard, and modified most-probable-number techniques.

Applied and Environmental Microbiology
T M EvansR J Seidler

Abstract

The species of total coliform bacteria isolated from drinking water and untreated surface water by the membrane filter (MF), the standard most-probable-number (S-MPN), and modified most-probable-number (M-MPN) techniques were compared. Each coliform detection technique selected for a different profile of coliform species from both types of water samples. The MF technique indicated that Citrobacter freundii was the most common coliform species in water samples. However, the fermentation tube techniques displayed selectivity towards the isolation of Escherichia coli and Klebsiella. The M-MPN technique selected for more C. freundii and Enterobacter spp. from untreated surface water samples and for more Enterobacter and Klebsiella spp. from drinking water samples than did the S-MPN technique. The lack of agreement between the number of coliforms detected in a water sample by the S-MPN, M-MPN, and MF techniques was a result of the selection for different coliform species by the various techniques.

References

Apr 1, 1977·Canadian Journal of Microbiology·J A Clark, J E Pagel
May 1, 1976·Canadian Journal of Microbiology·B J Dutkaand, S E Tobin
Apr 1, 1969·Journal of General Microbiology·M P Starr, M Mandel
Jan 1, 1981·Applied and Environmental Microbiology·T M EvansM W LeChevallier

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Citations

Mar 30, 2013·The Open Microbiology Journal·Kristopher J JanezicSteven L Daniel
Dec 1, 1982·Microbial Ecology·M W LechevallierS W Joseph
Dec 18, 2020·Journal of Medical Virology·Abdullah A BakiMustafizur Rahman
Oct 1, 1989·Applied and Environmental Microbiology·T C CovertR W Freyberg
Feb 1, 1989·Applied and Environmental Microbiology·S Edberg, D B Smith
Jul 1, 1981·Applied and Environmental Microbiology·M W LeChevallierR J Seidler
Jul 1, 1987·Applied and Environmental Microbiology·E W RiceA P Smith
Jun 1, 1982·Applied and Environmental Microbiology·P C Feng, P A Hartman

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