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Inactivation Rate of Enterococci and Total Coliforms in Fresh Water and Sea Water  

Kim, Jongmin (Environmental Microbiology Division, National Institute of Environmental Research)
Jheong, Weonhwa (Environmental Microbiology Division, National Institute of Environmental Research)
Choi, Heejin (Environmental Microbiology Division, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.25, no.1, 2009 , pp. 136-141 More about this Journal
Abstract
Inactivation rates between enterococci and total coliforms were compared in order to find the suitability of enterococci as an indicator microorganism under various experiment conditions - freshwater and/or seawater, indoor and/or outdoor conditions. In case of indoor laboratory experiments, inactivation rates of enterococci ($k_D$: 0.050~0.082) were faster than those of total coliforms ($k_D$: 0.034~0.045) in freshwater matrix. In seawater matrix, however, survival rate of enterococci was longer than that of total coliforms at two out of three experiments in indoor condition. When incubated in outdoor conditions, enterococci were inactivated significantly more rapidly than total coliforms both in freshwater and seawater matrices. With these results, enterococci appear to be less suitable than total coliforms in terms of inactivation rates.
Keywords
Enterococci; Enterococcus faecalis; E.coli; Inactivation rate; Indicator microorganism;
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Times Cited By KSCI : 1  (Citation Analysis)
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