Background and Objective: This study was carried out to isolate lytic bacteriophages against Pseudomonas aeruginosa and analyze their biological characteristics and antibacterial effects on other clinical isolates of bacteria. Methods: Isolating two lytic bacteriophages against two strains of P. aeruginosa was carried out using the double-layer agar method. After investigating the antibacteria...

there has been special interest in the chemistry of quinolone and pyrimidine derivatives due to their diverse biological activities such as anticonvulsant, anti-malarial agents, antibacterial, antiviral, cytostatic, antithelemintic, antigenotoxic, anti-cancer agents. these compounds are also used as targeting delayed-type hypersensivity and anti-convulsant agents. as a part of our research work...

Background: Bacteriocins are small peptides which are ribosomally synthesized and have been shown to have wide range of antimicrobial activity. The aim of this study was to optimize the production of L. paracasei MG847589 bacteriocin. Furthermore, the potential antibacterial properties of the novel bacteriocins were characterized and evaluated against Staphylococcus aureus. Methods: The presen...

conclusions the current study results showed that silver nanoparticles produced by plantago ovata seed extract had an antibacterial effect on staphylococcus aureus which was resistant against cefixime, trimethoprim-sulfamethoxazole and penicillin. results the silver nanoparticles revealed gaussian distributions with the average diameter of 13 nm with some deviations, and results showed that the...

conclusions due to phenolic content, methanolic extract of m. piperita has moderate antibacterial and antifungal properties against the aforementioned gram positive and gram negative bacteria and fungi strains. materials and methods the methanolic extract was prepared by standard procedure, and total phenol, total flavonoid, and total anthocyanin content were determined using a spectrophotomete...

background: bovine mastitis is the most costly disease in dairy cows and causes significant decrease in milk production. this disease is one of the main reasons of antibiotic therapy in dairy cows. objectives: staphylococcus aureus is counted as a major pathogen associated with the outbreaks of mastitis in dairy herds. therefore, the purpose of the present study is to examine the antibacterial ...

Background: Plant extracts and essential oils are commonly used in traditional and industrial doogh products to inhibit bacterial activities. Objective: In this study, the antibacterial effects of the essential oils of Olivera decumbens and Nepeta binaludensis against Staphylococcus aureus and Escherichia coli in doogh were investigated. Methods: Essential oils of Olivera decumbens and Nepeta...