Author:
Evans T M,LeChevallier M W,Waarvick C E,Seidler R J
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.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference24 articles.
1. American Public Health Association. 1975. Standard methods for the examination of water and waste water 14th ed. American Public Health Association Inc. Washington D.C.
2. Bordner R. and J. Winter (ed.). 1978. Microbiological methods for monitoring the environment. U.S. Environmental Protection Agency Cincinnati.
3. Relationship of coliform bacteria to gas production in media containing lactose;Chambers C. W.;Public Health Rep.,1950
4. Pollution indicator bacteria associated with municipal raw and drinking water supplies;Clark J. A.;Can. J. Microbiol.,1977
5. Studies on media for coliform organisms;Darby C. W.;J. Am. Water Works Assoc.,1939
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