نتایج جستجو برای: microbial contamination

تعداد نتایج: 160621  

2016
Ali Sharifzadeh Mohammad Hajsharifi-Shahreza Payam Ghasemi-Dehkordi

OBJECTIVES High consumption of bakery products such as cream-filled pastries may cause serious health risks and food poisoning to humans. Therefore, investigation of the microbial and chemical qualities of bakery products containing cream is necessary. The purpose of the present study was to investigate the chemical qualities and microbial contaminations of cream-filled pastries collected from ...

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...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1381

چکیده ندارد.

Journal: :international journal of environmental research 0
a. markowicz department of microbiology, university of silesia, jagiellońska 28, 40-032 katowice, poland m. cycoń department of microbiology and virology, school of pharmacy with the division of laboratory medicine, medical university of silesia, jagiellońska 4, 41-200 sosnowiec, poland z. piotrowska-seget department of microbiology, university of silesia, jagiellońska 28, 40-032 katowice, poland

the influence of long-term mixed organic and inorganic contamination on soil microbial activity, community structure and genetic diversity was investigated in soil samples from a coke oven plant located in upper silesia, poland. the tested soils were heavily contaminated with polycyclic aromatic hydrocarbons (pahs) and heavy metals. the microbial communities were characterized using the phospho...

Journal: :iranian journal of toxicology 0
مجید حسین زاده majid hosseinzadeh graduate faculty of environment, university of tehran, tehran, iran. غلامرضا نبی بیدهندی gholamreza nabi bidhendi graduate faculty of environment, university of tehran, tehran, iran. علی ترابیان ali torabian graduate faculty of environment, university of tehran, tehran, iran. ناصر مهردادی naser mehrdadi graduate faculty of environment, university of tehran, tehran, iran.

background: considering the toxic effects of heavy metals and microbial pathogens in industrial wastewaters, it is necessary to treat metal and microbial contaminated wastewater prior to disposal in the environment. the purpose of this study is to assess the removal of heavy metals pollution and microbial contamination from a mixture of municipal and industrial wastewater using membrane bioreac...

2013
Ayman El-Shibiny Y. F. Metawea

Microorganisms contamination in hatcheries has serious impacts on the quality and growth performance of ostrich. This study was conducted to examine the bacterial contamination of an ostrich hatchery environment and hatching eggs. Additionally, the inhibitory effects of some commercial disinfectants on microbial contamination on hatchery floor were also investigated. Our results indicated that,...

2017
V. La Fauci G.B. Costa A. Facciolà A. Conti R. Riso R. Squeri

INTRODUCTION Nosocomial pneumonia accounts for the vast majority of healthcare-associated infections (HAI). Although numerous medical devices have been discussed as potential vehicles for microorganisms, very little is known about the role played by oxygen humidifiers as potential sources of nosocomial pathogens. The purpose of this research was to evaluate the safety of the reuse of humidifier...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2015
Juan Manuel Bello-López Jorge Noguerón-Silva Jorge Ismael Castañeda-Sánchez Julieta Rojo-Medina

Disposal of Umbilical Cord Blood Units due to microbial contamination is a major problem in Cord Blood Banks worldwide as it reduces the number of units available for transplantation. Additionally, economic losses are generated as result of resources and infrastructure used to obtain such units. Umbilical Cord Blood Units that showed initial microbial contamination were subject to strains isola...

Journal: :Applied and environmental microbiology 2004
Kevin P Feris Philip W Ramsey Chris Frazar Matthias Rillig Johnnie N Moore James E Gannon William E Holben

Heavy metals contaminate numerous freshwater streams and rivers worldwide. Previous work by this group demonstrated a relationship between the structure of hyporheic microbial communities and the fluvial deposition of heavy metals along a contamination gradient during the fall season. Seasonal variation has been documented in microbial communities in numerous terrestrial and aquatic environment...

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