نتایج جستجو برای: bacteriological quality
تعداد نتایج: 758896 فیلتر نتایج به سال:
This study investigated the impact of waterfowl on the bacteriological quality of village ponds in East Yorkshire, north-east England. Water and sediment samples were collected from ponds with and without resident ducks and geese; faecal indicator and potentially pathogenic bacteria were assayed by membrane filtration and by selective enrichment. Escherichia coli, faecal streptococci and, to a ...
The bacteriological quality of drinking-water supply of five major urban centres affected by the October 2005 earthquake in Pakistan were assessed in three phases: onset of emergency, during emergency response and post-emergency. A total of 1850 samples were randomly collected from the study area during each phase, and faecal coliforms were detected in 100%, 28% and 91% in Battagram, 81%, 22% a...
The bacteriological quality of unfrozen raw ground beef was evaluated after 0, 3, 6, 9, 12, 15, and 18 days of storage at 29 +/- 1 F (-1.7 +/- 0.6 C). At the time of fabrication, all of the ground beef samples contained 10(6) or fewer total aerobic and psychrotrophic bacteria/g; 81% contained 100 or fewer coliforms/g; 94% contained 100 or fewer Escherichia coli/g; and all of the samples contain...
Bacteriological water quality status in terms of total coliform and faecal coliform count was studied on both--east and west banks of river Yamuna in Delhi. Membrane filtration technique was adopted for enumeration of total coliform and faecal coliform count in the river water sample collected on monthly basis for 2 years--2002 and 2003. The study reveals the impact of diverse anthropogenic act...
The Limulus lysate assay was used to measure the endotoxin content in stream water and was found to reflect the degree of bacterial contamination as measured by coliform, enteric, gram-negative, and heterotrophic bacteria. The firm-clot method was found to be a less sensitive and reproducible technique for the detection of endotoxin than was the spectrophotometric modification of the Limulus ly...
In the present study, bacteriological quality of 187 different mineral water bottle brands marketed in Karachi was analyzed from September 2009 to June 2010. All the collected samples were analyzed for the presence of coliform bacteria, fecal coliform bacteria, E. coli, fecal entrococci, P. aeruginosa and total viable plate count (TVPC). Alarmingly, 67 (36%) of these samples did not comply with...
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