نتایج جستجو برای: thermophilic coliforms

تعداد نتایج: 8431  

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
saeid nazemi department of environmental health engineering, school of public health, shahroud university of medical sciences, shahroud, iran jaber veganeh urmia university of medical sciences - faculty of nursing & health shima mohammadkhani shahroud university of medical sciences, shahroud, iran

background; providing safe drinking water is a prime concerninany community. this analytical study was carried out to evaluate the microbial quality of drinking water in rural areas of northeastern iran. methods;the water microbial quality was determined in all villages (a population of 53047 people), in 3 rounds and based on 3 measurements, i.e. total coliform, fecal coliform, and heterotrophi...

Journal: :Journal of environmental monitoring : JEM 2012
Chris Ziemba Jordan Peccia

The inactivation of fecal coliforms in anaerobic batch reactors has been investigated at the thermophilic temperatures of 50, 55 and 60 °C. Throughout inactivation experiments at each temperature, individual colonies were isolated and identified by 16S rDNA gene sequencing to illustrate how the diversity of fecal coliforms is affected by thermophilic treatment. Results indicate that even though...

Journal: :Applied and environmental microbiology 1980
G Berg D Berman

In raw sludges and in mesophilically and thermophilically digested anaerobic sludges, large variations in numbers of viruses occurred over narrow ranges of numbers of fecal coliforms, total coliforms, and fecal streptococci, demonstrating that the bacteria were poor quantitative reflectors of the numbers of the viruses detected. Mesophilic and thermophilic digestion of anaerobic sludges destroy...

Journal: :Jornal de pediatria 2008
Franz R Novak Ana R Junqueira Manuela de S P C Dias João A G Almeida

OBJECTIVE To verify the existence of a relationship between presence of off-flavor and microorganism load in quality control rejected samples of expressed human milk from a donor milk bank. METHODS A total of 30 samples of expressed human milk with off-flavor were tested for the occurrence of the following microorganisms: aerobic mesophilic, psycrotrophic, proteolytic, psycrotrophic proteolyt...

Background and Objectives: Water contamination of baths causes gastrointestinal, skin and fungal diseases due to pathogens. Therefore, this study was conducted to determine the microbial contamination of natural swimming places water in Behshahr. Materials and Methods: The present descriptive study was performed in three natural swimming places. Nine-tube fermentation method was used to determ...

Drinkability of water is determined based on its physical, chemical, and microbial properties. Undesirable changes in these parameters could threaten the health of consumers. The present study aimed to assess the physical, chemical, and microbial parameters of the drinking water sources in Sanandaj, Iran and compare them with the national standard values. This descriptive, cross-sectional study...

Journal: :تحقیقات نظام سلامت 0
امیر حسین نافذ دانشجوی دکترای مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مهناز نیک آئین دانشیار گروه مهندسی بهداشت محیط ، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مریم حاتم زاده کارشناس میکروبیولوژی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران بی بی فاطمه نبوی کارشناسی ارشد مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست دانشگاه علوم پزشکی اصفهان، اصفهان، ایران اکبر حسن زاده مربی، گروه آمار و اپیدمیولوژی، دانشکده بهداشت و مرکز تحقیقات محیط زیست دانشگاه علوم پزشکی اصفهان، ایران

background: monitoring of indicator and pathogenic microorganisms is essential for proper composting. the aim of this study was to evaluate the change in population of coliform bacteria and salmonella spp. in composting process of municipal wastes and after its application on soil. methods: the samples were taken from each raw waste pile, initial pile, and active phase pile, cooling phase pile ...

R. Guzzon, S. Schiavon, T. Roman,

Background: Malga cheeses are made in artisanal and seasonal dairies located in the Alps. This study was carried out to determine microbial diversity and sensorial properties of Malga cheese from Trentino (Italy) after long-term ageing period. The effects of adding the Fermalga Bacterial Pools (FBP) on microbiota biodiversity of cheese were also evaluated. Methods: Populations of Lactic Acid B...

Journal: :Applied and environmental microbiology 2009
Karen St-Pierre Simon Lévesque Eric Frost Nathalie Carrier Robert D Arbeit Sophie Michaud

This study aimed to assess the importance of quantitatively detecting Campylobacter spp. in environmental surface water. The prevalence and the quantity of Campylobacter spp., thermotolerant coliforms, and Escherichia coli in 2,471 samples collected weekly, over a 2-year period, from 13 rivers and 12 streams in the Eastern Townships, Québec, Canada, were determined. Overall, 1,071 (43%), 1,481 ...

2010
A. Agabou N. Alloui

During 2008, a study has been conducted on the potential of Alphitobius diaperinus as a reservoir of many poultry pathogenic bacteria, in twenty broiler houses in the North-East of Algeria. Many groups of bacteria have been enumerated; Salmonella and thermophilic campylobacters contaminations have been searched. Both adults and larvae carried and harbored multiple species and numbers of poultry...

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