نتایج جستجو برای: isolation of bacteria

تعداد نتایج: 21180737  

ژورنال: سلامت و محیط زیست 2016
خالدی, زینب, کفیل زاده, فرشید,

Background and Objectives: Bioaugmentation is a superior technique in bioremediation of contaminated soils with petroleum hydrocarbons. The aim of this study was to evaluate the effect of isolated bacteria from activated sludge of Asalouyeh special zone municipal wastewater treatment for bioaugmentation of kerosene-contaminated soils and to study the growth of isolated bacteria in the presence ...

Majid Baserisalehi Nima Bahador, S Aghaei

The genus Rhodococcus is gram positive bacterium which was classified into the family of Nocardiaceae.  The organism can be isolates from different sources, with capability to degrade diverse types of pollutant. Nowadays, scientists reported a few secondary metabolites which are produced by Rhodococci. Hence, the present study tried to isolate Rhodococci from different soil samples with the cap...

2015
N Eevers M Gielen A Sánchez-López S Jaspers J C White J Vangronsveld N Weyens

Many endophytes have beneficial effects on plants and can be exploited in biotechnological applications. Studies hypothesize that only 0.001-1% of all plant-associated bacteria are cultivable. Moreover, even after successful isolations, many endophytic bacteria often show reduced regrowth capacity. This research aimed to optimize isolation processes and culturing these bacteria afterwards. We c...

A. Abdollahi A. Tahmourespour I. Amini

Anthracene is a widespread environmental pollutant with carcinogenic and genotoxic properties. Biodegradation is a simple, cost-effective and safe technique to clean-up contaminated environments. The aims of this study are isolation and characterization of an oligotrophic bacterium with the ability to degrade anthracene and the assessment of in vitro biodegradation process. For this purpose pet...

ژورنال: Medical Laboratory Journal 2018
Ahadi , Ali Mohammad, Doudi , Monir , Kiani Abri , Maedeh ,

ABSTRACT           Background and Objectives: Keratinase is an enzyme commonly used in the production of detergents, cosmetics, drugs, leather, and other industries. Considering the high cost of traditional methods for decomposition of feather, hair, hooves, nails, and wool that contain high levels of keratin, their biodegradation with keratinase-...

Introduction: Probiotics are defined as live non-pathogenic microorganisms and if administered in adequate amounts, can have beneficial effects on their hosts. This study aimed to isolate Gram-positive bacteria from different sources and to evaluate their probiotic properties. Methods: We obtained five samples from various sources including yogurt, infant feces, cheese, and soil under aseptic m...

امیرمظفری, نور, احمدی, محمد حسین, صدیقی گیلانی, محمد علی, مسجدیان جزی, فرامرز , کاظمی, بهرام,

    Background & Aim: Infections caused by genital mycoplasmas may have harmful effects on the fertility of men and may lead to male infertility. This study was performed to detect the prevalence of these bacteria in infertile men referred to Royan Institute.Patients and Method: Semen samples were collected from 220 infertile men and were inoculated into PPLO broth transport media and sent to t...

Journal: :Khulna University studies 2022

Soil samples from two soil series, Mirpur and Sara were taken for isolation characterization of bacteria. It has been observed that series had more bacterial population than soil. Moreover, diversified types colony found in Most the bacteria both soils spore forming. Bacteria with capsule very rare all non acid fast. The ratio Gram- positive to negative was 1:1 soils. There no round shaped (coc...

صفری, رضا, یعقوب زاده, زهرا,

Background and purpose: Bioindicators are microorganisms directly associated with environmental changes which their numbers are affected by chemical pollutants. Materials and methods: Sampling was done from four stations in Shirood River in depth of 20 cm of water surface and transferred to laboratory in less than 24 hr. KF medium, SPS, ECC Chrome agar, Plate count agar were used for isolati...

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