in this study, total phenolics and flavonoids content, antiradical and antimicrobial activity of methanolic extract of two iranian acorn varieties, namely quercus.castaneifolia var castaneifolia and quercus.branti var persica were evaluated. total phenolic and flavonoid content and extraction yield of methanolic extract of castaneifolia variety (mc) were significantly higher than that of the ex...

biodegradable polysacharyd-based film was developed by incorporating pimpinella affinis essential oil (pao) into methyle cellulose (mc) at level of 0.5%, 1% and 1.5% v/v. then, its antimicrobial activity tested against 7 bacteria include staphylococcus aureus (ptcc 1431), pseudomonas aeruginosa (ptcc 1151), pseudomonas putida(ptcc 1691),esherichia coli (ptcc 3315), listeria monocytogenes (ptcc ...

objective: punica granatum, commonly known as pomegranate, has emerged as a medicinal plant with potential antimicrobial activity. the present study was planned to evaluate this activity against both gram positive staphylococcus aureus (s. aureus) and negative pseudomonas aeruginosa (p. aeruginosa) bacteria as well as against pathogenic yeast, candida albicans (c. albicans). material and method...

Actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. A total of 44 strains of actinomycetes were isolated from Caspian Sea sediments at a depth of 5-10 m. Preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. The most potent strains MN2, MN3, MN38, MN39, MN...

Six unsymmetrical diorganyltellurium(IV) dichlorides RR'TeCl2 (where R= phenacyl-, 1-naphthacyl-, and styrylacyl- and R' = p-methoxyphenyl, p-hydroxyphenyl-, and 3-methyl-4-hydoxyphenyl-) were tested for their antibacterial activity against gram-positive (Bacillus subtilis ATCC 6633 and Staphylococcus aureus ATCC 25923) and gram-negative (Escherichia coli ATCC 25922. Pseudomonas aeruginosa ATCC...

The chemical composition of essential oils isolated from the leaves of Cosmos bipinnatus and its antibacterial activity were analyzed by GC-MS and microbroth dilution assay respectively. The essential oil extracted from this plant was predominantly composed of monoterpenes (69.62%) and sesquiterpenes (22.73%). The antibacterial assay showed that the oil had significant inhibitory effects agains...

Background & Aim: Nowadays, the application of traditional medicine and herbal medicinal plants instead of chemical and synthetic drugs has captured the attention of the researchers. The purpose of this study was to investigate the antimicrobial effects of the aquatic, ethanolic and methanolic (80%) extracts of the aerial and root parts of Stachys lavandulifolia Vahl which were taken f...

Background & Aim: Nowadays, the application of traditional medicine and herbal medicinal plants instead of chemical and synthetic drugs has captured the attention of the researchers. The purpose of this study was to investigate the antimicrobial effects of the aquatic, ethanolic and methanolic (80%) extracts of the aerial and root parts of Stachys lavandulifolia Vahl which were taken f...

Background: Despite the discovery of numerous antibiotics, drug resistance still remains as a major problem. Therefore, it is important to introduce and replace new sources of drug such as medicinal plants with antimicrobial properties. Objective: The genus Clematis (Ranunculaceae family) has six species in Iran. Aerial parts of Clematis have been used to cure fever and chronic diseases such a...

objective(s)                                                                                                                                                                               aim of the present study was to screen the antibacterial activities of some medicinal plants extracts traditionally used in azarbaijan area (iran). materials and methods thirty-six extracts obtained from differ...