OBJECTIVE The clavulanic acid regulatory gene (claR) is in the clavulanic acid biosynthetic gene cluster that encodes ClaR. This protein is a putative regulator of the late steps of clavulanic acid biosynthesis. The aim of this research is the molecular cloning of claR, isolated from the Iranian strain of Streptomyces clavuligerus (S. clavuligerus). MATERIALS AND METHODS In this experimental ...

Esherichia coli adalah bakteri dari famili Enterobacteriacea, perjalanan terjadinya penyakit yang diakibatkan oleh Escherichia paling sering terjadi karena kurangnya sanitasi lingkungan, kebersihan pribadi buruk khususnya pada penyaji atau penjual, menyebabkan kontaminasi, kualitas mikrobiologi makanan jajanan dapat ditentukan berdasarkan nilai MPN dan TPC. Penelitian ini bertujuan untuk menget...

the aim of the present study was to isolate cyanobacteria from oil refinery waste water and detection of antagonistic activity of their extracts on four species of pathogenic bacteria. the cyanobacterium was isolated and purified on blue green algae medium number 11 (bg-11) medium. methanol and water extracts prepared from the cultured cyanobacterium after 45 days growth on bg-11 medium. the bi...

PURPOSE Azithromycin (AZI) is a new macrolide antibiotic with a better activity against intracellular gram negative bacteria in comparison with Erythromycin. The purpose of this research was to prepare AZI nanoparticles (NPs) using PLGA polymer and to compare the effectiveness of prepared nanoparticles with untreated AZI solution. METHODS AZI NPs were prepared by Modified Quasi-Emulsion Solve...

The aim of the present study was to isolate cyanobacteria from oil refinery waste water and detection of antagonistic activity of their extracts on four species of pathogenic bacteria. The cyanobacterium was isolated and purified on Blue green algae medium number 11 (BG-11) medium. Methanol and water extracts prepared from the cultured cyanobacterium after 45 days growth on BG-11 medium. The bi...

objective: due to the alarming increase the incidence and prevalence of infectious diseases and increasing bacterial resistance to antibiotics need to discover new strong antimicrobial compounds is feeling.methods: in this study, the antimicrobial properties of spider silk pholcus phalangioides produced in sterile conditions against two bacteria, listeria monocytogenes and esherichia coli with ...

Thyme (Thymus vulgaris) belongs to the Lamiaceae family, and has been used since antiquity in traditional medicine. It is recognized by its therapeutic virtues. The ancient-Iranians were familiar with many medicinal herbs and were aware of their usefulness in treatment of various diseases. In this study Thymus vulgaris L. to evaluate the antimicrobial activity, Disc Diffusion Test with KirbyBau...

This study evaluated that effect of prebiotic food containing oligosaccharide to enhance the growth and activity of probiotic strains. Barley grains probioticated using different strains of probiotics are Lactobacillus kefiranofaciens, Candida kefir,and saccharomyces boluradii. To select a suitable prebiotics like inulin for the development of Synbiotic barley and tested for antibacterial activ...

Background: The disk diffusion method for identification of yeasts species was performed based on different but distinct susceptibilities of yeasts spp. to chemicals: janus green, ethidium bromide, 2,3,5-triphenyltetrazolium chloride, brilliant green, cycloheximide and rhodamine 6G. Methods: Atotal of 568 Iranian soldiers went under study for isolation and identification of Yeast species from t...