Background and objectives: Bacterial antibiotic resistance is a major issue in the process of infectious disease treatments. The aim of this study was an evaluation of the antibacterial activity of Punica granatum flower extract against several gram-negative and positive clinical bacterial isolates.   Methods: An adequate dried flower of an endemic mature Punica granatum plant was used for ex...

The essential oil of Verbena officinalis growing in Iran was extracted using hydro-distillationmethod and the antibacterial and antioxidant activities were evaluated. The antibacterial activity of the essentialoil against a Gram-positive (S. aureus ATCC25923) and Gram negative (E. coli ATCC 25922) were examined.The results obtained revealed that the essential oil exhibited variable levels of an...

The red sword bean (Canavalia gladiata) is an underutilized edible bean cultivated in China. It was previously found to have the highest content of antioxidant polyphenols among 42 edible beans, mainly gallic acid, and gallotannins in its red bean coat, an apparently unique characteristic among edible beans. In this study, the main phenolic compounds in red sword bean coats were further separat...

*Corresponding author’s e-mail: [email protected]. 1College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028000, China. 2Key Laboratory of Zoonosis Res., Ministry of Education, Institute of Zoonosis, Jilin University,Changchun 130062, China. 3College of Food Science and Engineering, Jilin Agricultural University, Changchun,130118, Jilin...

In this study, we report a new multifunctional nanoparticle with antioxidative and antibacterial activities in vitro. ZnO@GA nanoparticles were fabricated by coordinated covalent bonding of the antioxidant gallic acid (GA) on the surface of ZnO nanoparticles. This addition imparts both antioxidant activity and high affinity for the bacterial cell membrane. Antioxidative activities at various co...

The phycobilin pigments are intensively fluorescence and water soluble. They are categorized into three types: pigments containing high energies (phycoerythrins), intermediate energies (phycocyanins), and low energies (allophycocyanins). Among them, crude-phycocyanin (c-pc) has been considered to be the most preferred one. The present study was undertaken to evaluate the antibacterial activity ...

The crude methanolic extract of the roots of Cerbera odollam Gaertn. was evaluated for its possible antinociceptive, antibacterial and diuretic activities in animal models. At the dose of 250 and 500 mg/kg body weight, the extract showed a significant antinociceptive effect in acetic acid induced writhing in mice comparable to that produced by aspirin, used as standard drug (P<0.001).The extrac...

Several plants have been evaluated not only for alone antimicrobial activity, but as resistance-modifying agent. This work is the first on the modulation of antibiotic activity by Lantana camara L. extracts against multiresistant strains of Escherichia coli and Staphylococcus aureus. The antibacterial activities of leaf and root ethanol extracts alone or in association with aminoglycosides were...

Six new products of Streptomyces murayamaensis sp. nov. Hata et Ohtani, the producer of the kinamycins, were isolated by silica gel column chromatography. The antibacterial activities of the new products, as well as that of dehydrorabelomycin and murayaquinone, previously isolated products of the same organism, were compared to the kinamycins. Three of the products had antibacterial activities ...

Abstract: A series of N-[2-(8-metoxy-2H-chromen-2-one)ethyl] piperazinyl quinolones containing a carbonyl related functional groups (oxo or oxyimino) on the ethyl spacer of coumarin and piperazin rings was synthesized and studied for their antibacterial and antifungal activities . The synthesis of compounds (6a-6l) was achieved through the versatile and efficient synthetic route that involved r...