A fast method for the confirmation of fecal streptococci from M-Enterococcus medium
Article Abstract:
The fecal streptococci (FS) present in M-Enterococcus medium are accurately and rapidly confirmed by placing the filters used for membrane filtration in bile-esculin agar. The transferred filters are incubated at 35 degrees celsius for 4 hrs and then H2O2 is added. FS colonies turn black and give a negative catalase reaction. The identification of FS is more accurate in fresh water, natural or polluted water than in marine or treated waters. This method is better than the random colony selection method given in 'Standard Methods for the Examination of Water and Wastewater.'
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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Presumptive fecal streptococci in environmental samples characterized by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis
Article Abstract:
Presumptive streptococci were isolated from various environmental samples and were characterized by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis of total proteins and by fatty acid analysis. The results showed that the 271 isolates could be classified into seven groups based on protein profiles, with each environment having a characteristic composition of protein patterns. The results of the fatty acid analysis was in general agreement with protein profile results.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
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Discriminant analysis of antibiotic resistance patterns in fecal Streptococci, a method to differentiate human and animal sources of fecal pollution in natural waters
Article Abstract:
The discriminant analysis of antibiotic resistance patterns in fecal streptococci analyzes and differentiates between human and animal sources of fecal pollution in natural waters. The six possible sources of contamination are beef, chicken, dairy, human, turkey and wild. The antibiotic resistance patterns vary according to the given drug concentration and source. The method classifies each individual isolate into one of the sources. The method helps in evaluating the risk to public health.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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