نتایج جستجو برای: Fecal coliform

تعداد نتایج: 28598  

Journal: :تحقیقات نظام سلامت 0
مریم یاراحمدی کارشناس ارشد، گروه مهندسی بهداشت محیط، مرکز سلامت محیط و کار، وزارت بهداشت، درمان و آموزش پزشکی، تهران، ایران. مسعود یونسیان ، دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران ایرج موبدی ، استاد، گروه انگل شناسی، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران محمد رضا پورمند دانشیار، گروه پاتوبیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران عباس شاهسونی دانشجوی دکترا، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران. بیژن نعمان پور دانشچوی دکترا ، کمیته تحقیقات دانشجویی، گروه میکروبیولوژی، دانشکده پزشکی، دانشگاه علوم پزشکی تهران، تهران، ایران کاظم ندافی

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...

Journal: :iranian journal of public health 0
m yarahmadi m yunesian mr pourmand a shahsavani i mubedi b nomanpour

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....

2013

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 ...

2015
Nazak AMANIDAZ Ali ZAFARZADEH Amir Hossein MAHVI

BACKGROUND This study investigated the interaction between heterotrophic bacteria and coliform, fecal coliforms, fecal streptococci bacteria in water supply networks. METHODS This study was conducted during 2013 on water supply distribution network in Aq Qala City, Golestan Province, Northern Iran and standard methods were applied for microbiological analysis. The surface method was applied t...

Journal: :Applied microbiology 1975
M H Brodsky D A Schiemann

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...

Journal: :iranian journal of public health 0
nazak amanidaz ali zafarzadeh amir hossein mahvi

background: this study investigated the interaction between heterotrophic bacteria and coliform, fecal coliforms, fecal streptococci bacteria in water supply networks. methods: this study was conducted during 2013 on water supply distribution network in aq qala city, golestan province, northern iran and standard methods were applied for microbiological analysis. the surface method was applied t...

Journal: :Applied and environmental microbiology 1999
V J Harwood J Butler D Parrish V Wagner

Total and fecal coliform bacteria were isolated from the cloaca and feces of the estuarine diamondback terrapin. The majority of samples contained fecal coliforms. Escherichia coli was the predominant fecal coliform species isolated, and members of the genus Salmonella were isolated from 2 of 39 terrapins. Fecal coliform numbers are used to regulate shellfish harvests, and diamondback terrapins...

2008
Porché Spence Jasper Harris

Fecal coliform bacteria cause water quality problems for many urban areas across the United States. The objective of this study is to determine if the Irwin Creek and Sugar Creek wastewater treatment plants, located near Charlotte in Mecklenburg County, North Carolina, contribute significantly to the fecal coliform concentrations in the creeks. Fecal coliform densities in the wastewater effluen...

Journal: :Applied and environmental microbiology 1978
L G Naemura R J Seidler

In the genus Klebsiella, the growth respnse in nutient broth at 10 degrees C correlates inversely with the operational definition of a fecal coliform and not merely with the ability to grow at 44.5 degrees C. Of the fecal coliform-positive Klebsiella, 97% did not grow at 10 degrees C after 72 h of incubation. Conversely, 97% of the fecal coliform-negative isolates grew at 10 degrees C. The amou...

Journal: :Applied microbiology 1975
K J Sladek R V Suslavich B I Sohn F W Dawson

The purpose of this study was to determine the optimum membrane filter structure and characteristics for recovery of coliform organisms. Additionally, other factors such as sterilization method and membrane composition were examined. Fecal coliform growth tests with varied samples indicated that the most critical factor in recovery was surface pore morphology and not other factors previously su...

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