نتایج جستجو برای: n and microbial population total and cellulolytic bacteria

تعداد نتایج: 17105928  

Journal: Pollution 2019

The ever increasing pile-up of electronic waste in dumping sites, especially in developing countries such as China, Pakistan, India and several African countries, might have caused a significant alteration in the microbial community of the contaminated sites. This change in the microbial population may have significant impact to the soil ecology function. The major pollutants of electronic wast...

Journal: :journal of medical microbiology and infectious diseases 0
anousheh sharifan department of food science and technology, islamic azad university, science and research branch, tehran, iran (corresponding author: tel.: +98 2144867154; fax: +98 2166460700, e-mail address: [email protected]) leila beikmohammadi ph.d. student, department of molecular medicine, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran

introduction: in this study, the chemical composition and antimicrobial activity of essential oil of ziziphora clinopodiodes and its potential application as a natural preservative in reducing the indigenous microbial population of hamburger were investigated. method: essential oil of ziziphora clinopodiodes cultivated in iran was obtained by hydro-distillation method (hdm). chemical compositio...

Journal: :Animal : an international journal of animal bioscience 2012
Y W Zhou C S McSweeney J K Wang J X Liu

This study was conducted to investigate effects of disodium fumarate (DF) on fermentation characteristics and microbial populations in the rumen of Hu sheep fed on high-forage diets. Two complementary feeding trials were conducted. In Trial 1, six Hu sheep fitted with ruminal cannulae were randomly allocated to a 2 × 2 cross-over design involving dietary treatments of either 0 or 20 g DF daily....

Journal: :iranian journal of public health 0
marzieh farhadkhani 1. dept. of environmental health engineering, school of health, isfahan university of medical sciences , isfahan, iran. mahnaz nikaeen 1. dept. of environmental health engineering, school of health, isfahan university of medical sciences , isfahan, iran. behrouz akbari adergani 2. water safety research center, food and drug organization, ministry of health and medical education , tehran, iran. maryam hatamzadeh 1. dept. of environmental health engineering, school of health, isfahan university of medical sciences , isfahan, iran. bibi fatemeh nabavi 1. dept. of environmental health engineering, school of health, isfahan university of medical sciences , isfahan, iran. akbar hassanzadeh 3. dept. of statistics and epidemiology, school of health, isfahan university of medical sciences , isfahan, iran.

drinking water quality can be deteriorated by microbial and toxic chemicals during transport, storage and handling before using by the consumer. this study was conducted to evaluate the microbial and physicochemical quality of drinking water from bottled water coolers.a total of 64 water samples, over a 5-month period in 2012-2013, were collected from free standing bottled water coolers and wat...

The ever increasing pile-up of electronic waste in dumping sites, especially in developing countries such as China, Pakistan, India and several African countries, might have caused a significant alteration in the microbial community of the contaminated sites. This change in the microbial population may have significant impact to the soil ecology function. The major pollutants of electronic wast...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: Food-borne diseases are among the most important public health problems. Among them, Salmonella is one of the most important food pathogens. Different Salmonella serotypes enter body through food and causes food infections in consumers. One of the most important evaluation criteria for health is to determine the microbial load of food. Materials and Methods: In this s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

2013
A. M. Palese R. Magno T. Casacchia M. Curci S. Baronti F. Miglietta C. Crecchio C. Xiloyannis A. Sofo

The abandonment of olive orchards is a phenomenon of great importance triggered mainly by economic and social causes. The aim of this study was to investigate some chemical, biochemical, and microbiological properties in a soil of a southern olive grove abandoned for 25 years. In order to define the effect of the long-term land abandonment on soil properties, an adjacent olive grove managed acc...

2013
Vitali A Svetlitchnyi Oliver Kensch Doris A Falkenhan Svenja G Korseska Nadine Lippert Melanie Prinz Jamaleddine Sassi Anke Schickor Simon Curvers

BACKGROUND Consolidated bioprocessing (CBP) of lignocellulosic biomass to ethanol using thermophilic bacteria provides a promising solution for efficient lignocellulose conversion without the need for additional cellulolytic enzymes. Most studies on the thermophilic CBP concentrate on co-cultivation of the thermophilic cellulolytic bacterium Clostridium thermocellum with non-cellulolytic thermo...

Journal: :تحقیقات دامپزشکی 0
دلاور شهباز زاده گروه تحقیقات و توسعه مشترک نانونصب پارس، عضو دفتر علم و فناوری دانشگاه تهران دلاور شهباززاده انستیتو پاستور ایران، بخش بیوتکنولوژی علی میثاقی گروه بهداشت مواد غذایی دانشکده دامپزشکی دانشگاه تهران محمدرضا پورشفیع بخش میکروب شناسی انستیتو پاستور ایران

staphylococcus spp., is a common bacteria in cattle mastitis. detection of the low number of bacteria requires a sensitive method. we used multiplex polymerase chain reaction (m-pcr) assay to detect the genes encoding sea, seb, sec toxins, that are specific in s. aureus bacteria. the gene of 23s rrna that is conserved in all staphylococcus spp., also was used. due to the stiffness and low effec...

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