نتایج جستجو برای: facal coliform
تعداد نتایج: 3811 فیلتر نتایج به سال:
a new medium, termed ecol was developed for the detection and enumeration of e. coli. the selective properties of ecol medium for the detection of e.coli from mixed culture in wastewater was tested and compared with conventional coliform media at 37°c and 44°c. results clearly showed that ecol medium was enable to direct confirmation of e.coli to be carried out by the indole reaction. the resul...
The term "coliform" ..................................................... 2 Separation of Friedliander group from other coliform bacteria............. 2 Development of the classification and characterization of coliform bacteria.. 4 The tribe Eschericheae and related forms according to Bergey............ 12 Occurrence and significance of coliform bacteria, including pathology...... 13 Atypical ...
background: raw vegetables are particularly susceptible to microbial growth and, therefore, use of an effective sanitizer on these food items is of great importance. the objective of this study was to evaluate the efficacy of the vegetable disinfection protocol set forth by iranian ministry of health in reducing populations of total coliform, fecal coliform, and parasites present on lettuce. me...
The study was conducted to determine the coliform content of shellfish Anadara antiquata from three selected areas of Davao Gulf. One shot sampling was employed in the study and it was conducted within the month of February, 2010. Test for coliform and fecal coliform was done using the multiple-tube fermentation technique through the presumptive, confirmed and fecal coliform test. Total Colony ...
Four brands of membrane filters were examined for total and fecal coliform recovery performance by two experimental approaches. Using diluted EC broth cultures of water samples, Johns-Manville filters were superior to Sartorius filters for fecal coliform but equivalent for total coliform recovery. Using river water samples, Johns-Manville filters were superior to Sartorius filters for total col...
Investigations concerning the role of distribution system biofilms on water quality were conducted at a drinking water utility in New Jersey. The utility experienced long-term bacteriological problems in the distribution system, while treatment plant effluents were uniformly negative for coliform bacteria. Results of a monitoring program showed increased coliform levels as the water moved from ...
Coliform mastitis is tremendously important to the dairy industry for several reasons. First, it has become the predominant form of clinical mastitis and current management practices favor an increase in incidence. Second, coliform organisms cause some of the most severe cases of clinical mastitis. Third, as present trends in the dairy industry of increasing milk quality continue, environmental...
background: the objective of this study was to evaluate the efficacy of sanitization of lettuce according to the protocols set forth by iranian ministry of health and medical education for reducing populations of total coliform, fecal coliform, and helminth eggs present on lettuce. methods: in the present study, we determined the load of total coliform, fecal coliform, and parasites of lettuce....
That some strains of the coliform group of bacteria exert inhibitory effects on other microorganisms, when grown in association in liquid media, was reported first by Nissle in 1916. Because of the multiplicity of factors involved when organisms are growing in heterogeneous mixtures in liquid media, the nature of the inhibiting agent is difficult to ascertain. Gratia of Belgium (1925) observed ...
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