Escherichia coli is an indicator in the quality control of pharmaceutical and other samples. Reduced graphene oxide (rGO) as a kind of carbon compositions was immobilized on glassy carbon electrode (GCE). Chronoamperometric and reduction methods were used for Au NPs decoration and it completed with polyclonal E. coli antibody and 0.5 W/V% Bovine Serum Albumin solution. Morphology and structure ...

BACKGROUND: Avian Colibacillosis can lead to important economic losses in the poultry industry. Escherichia coli the causative agent of this disease has acquired resistance to different antibiotics, including tetracycline. OBJECTIVES: This study was carried out to detect the distribution of tetracycline Group І efflux genes genes among E.coli isolates from from avian colibacillosis in Iran by P...

Background: Electron beam irradiation is one of the effective ways to control food-borne pathogens. We evaluated the effect of electron beam irradiation on survival of Escherichia coli O157:H7 and Salmonella enterica serovar Thyphimurium in minced camel meat during refrigerated storage. Methods: The meat samples were inoculated with E. coli O157:H7 and S. enterica serovar Thyphimurium and then...

Background and Aims: Q59L mutant of L-asparaginase enzyme from Escherichia coli (E. coli) has been introduced with lower side effects. This version of the enzyme might have potential applications in the treatment of leukemia patients. We utilized SHuffle T7 strain of E. coli, to produce the mutant enzyme in the presence of chaperone molecules. Materials and Methods: Q59LAsp gene was cloned in...

Background: Escherichia coli is one of the most important pathogens which could be transmitted by milk. The main aim of the present study was to assess risk factors related to the occurrence of E. coli in fluid milk marketed in Chittagong, Bangladesh. Methods: Totally, 169 milk samples were collected from different entry points in Chittagong, Bangladesh; and also, 17 samples were directly coll...

Background: Food borne pathogens are of the main concerns of food producers and consumers and Escherichia coli and Staphylococcus aureus create a lot of problems worldwide. The aim of this study was to evaluate antibacterial effects of monolaurin, sorbic acid and potassium sorbate on S. aureus and E. coli at different pH values and NaCl concentrations. Methods: Micro-well dilution assay was us...

recently, the effects of antimicrobial activity of silver nanoparticles was considered by researcher because of bacterial resistance to antimicrobial agents in chemical.the aim of this study was to evaluate the antimicrobial activity of the gold nanoparticles on escherichia coli. gold nanoparticles are chemically synthesized. standard strain of e. coli was cultured in a nutrient broth. minimum ...

the present study was carried out to determine the potential antibacterial effect of essential oil of origanumvulgare against antibiotic resistant e.coli. in this study, the essential oil of origanumvulgare obtained by hydrodistillation was analyzed by gas chromatography coupled to mass spectrometry (gc-ms) in order to determine their chemical composition. the minimum inhibitory concentrations ...