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Comparison of thermotolerant coliforms and Escherichia coli densities in freshwater bodies BJM
Hachich,Elayse M.; Di Bari,Marisa; Christ,Ana Paula G.; Lamparelli,Cláudia C.; Ramos,Solange S.; Sato,Maria Inês Z..
Fecal bacterial indicator analyses have been widely used for monitoring the water quality. This study was designed to determine the ratio between the density of Escherichia coli and other Thermotolerant Coliforms (TtC) bacteria from freshwater samples collected for a two-year period of monitoring. TtC were enumerated by membrane filtration on mFC agar. E. coli enumeration was done by two methods: TtC colonies identified in mFC were inoculated in EC-MUG or water samples were filtered and inoculated in modified mTEC agar media, and both methods were compared for quantitative recovery of E. coli. The results pointed out a mean percentage of E. coli among other thermotolerant coliforms (E. coli/TtC ratio) of 84.3% in mFC media. Taking these results into...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermotolerant Coliforms (TtC); E. coli; Water quality; Microbiological standards.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200032
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