نتایج جستجو برای: microbial contamination
تعداد نتایج: 160621 فیلتر نتایج به سال:
INTRODUCTION Contamination of pharmaceutical preparations by micro-organisms continues to be a matter of concern to the pharmacists. From the beginning it has been an official requirement that parenteral preparations shall be sterile. More recently a number of serious infections in the eye in Britain and elsewhere have resulted in the further requirement that all preparations used in the eye sh...
The objective of this study was to compare the performance, egg quality, and microbial contamination of egg shells from hens maintained in different housing systems, such as conventional and enriched cages, litter, and aviaries. The housing system significantly (P < 0.001) influenced the performance characteristics. The highest egg production, lowest daily feed consumption, and feed conversion ...
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 biorea...
INTRODUCTION Patients and operators are exposed during dental practice to an infective risk, which derives especially from microorganisms suspended in aerosols. Environmental microbiological monitoring in dental settings represents a good instrument to detect critical situations. METHODS In order to investigate environmental microbial contamination level in a local reality, we analyzed water,...
Introdution: The statistics of infertility among couples is about 15%. 60% of infertility cases are related to male factors, and the share of infertility due to genital tract infection is 20%. In bacteriospermia, the presence of bacteria and leukocytes produce active forms of oxygen and damage to sperm cells. In the present study, determination of frequency and diversity of bacteria involved in...
During the Integrated Ocean Drilling Program (IODP) Expedition 331 at the Iheya North hydrothermal system in the Mid-Okinawa Trough by the D/V Chikyu, we conducted microbiological contamination tests of the drilling and coring operations. The contamination from the drilling mud fluids was assessed using both perfluorocarbon tracers (PFT) and fluorescent microsphere beads. PFT infiltration was d...
Artificial neural networks (ANN) are modelling tools that can be of great utility in studies of microbial water quality. The ability of ANNs to work with complex, inter-related multiparameter databases and provide superior predictive power in non-linear relationships suits their application to microbial water quality studies. To date ANNs have been successfully applied (a) for the prediction of...
Background: Flour is a primary product for the types of bread and other related food stuffs that has an especial role in most places of the world. It has a substantial role in food material in Iran, for providing human’s food resources. Therefore its hygienic conditions, is the most important factor for maintaining and as well as consumers health. Methods: This is a descriptive and cross–sect...
Background: Microbial and fungal contamination of agricultural produce has been a health challenge over the years. The present study surveyed microbial and aflatoxin contamination in groundnut, maize, and cowpea collected from Port Harcourt, Nigeria. Methods: Ninety samples of maize, groundnut, and cowpea were purchased from six major markets in Port Harcourt, Nigeria. The samples were first e...
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