نتایج جستجو برای: coliform

تعداد نتایج: 3799  

Journal: :Bacteriological reviews 1939
L W Parr

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 ...

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...

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 ...

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: :Applied and environmental microbiology 1987
M W LeChevallier T M Babcock R G Lee

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 ...

2004
George Barrington

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...

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....

Journal: :Journal of bacteriology 1954
M LEVINE R H TANIMOTO

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 ...

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: :Journal of bacteriology 1944
J R Sanborn

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