July 2009
Enhancement of bioactive compound production, antimicrobial activity and evaluation in animal models
July 2009
Antibacterial activity of crude extracts of Euphorbia hirta against some bacteria associated with enteric infections
Euphorbia hirta powdered plant material was extracted using 3 solvents methanol, hexane and distilled water. The water extracts provided the higher yield and also more antibacterial effectiveness than when organic solvents were used. Phytochemical screening of the crude extracts revealed the presence of tannins, saponins, phenolics, flavonoids, cardiac glycosides, anthroquinones and alkaloids. This presence of...
July 2009
Compounds of Purslane extracts and effects of anti-kinetic fatigue
Purslane, a famous Chinese medicinal herb, has a long history of use as a traditional remedy for many diseases. In this study, compounds of Purslaneextracts (PE) are analyzed according to thin layer chromatography (TLC) and anti-kinetic fatigue effects was evaluated by forced swimming exercise of male mice. The results suggest that the main compounds Purslane extracts included organic acid,...
July 2009
Antimicrobial activity and cytotoxicity of Chromolaena odorata (L. f.) King and Robinson and Uncaria perrottetii (A. Rich) Merr. extracts
Ethanol extracts of leaves of Chromolaena odorata and ethyl acetate extracts of stem bark of Uncaria perrottetii were examined for their antimicrobial and cytotoxic properties. To determine these activities, C. odorata and U. perrottetiiwere tested against bacteria and fungus through disc diffusion and minimum inhibitory concentration (MIC) assays; protozoa through growth curve...
July 2009
The quantitative effects of temperature and light intensity on hyperforin and hypericins accumulation in Hypericum perforatum L
The quantitative effects of temperature and light intensity on accumulations of hyperforin, hypericin and pseudohypericin were examined in greenhouse-grownHypericum perforatum L. plants. Polyethylene cover of 50% transparency was used for shading. Temperature values and light intensities were measured daily in both shaded and un-shaded parts during experiment. Plants were harvested weekly and assayed for the...
July 2009
Toxicological assessment of the oleo-gum resins of Commiphora molmol and Boswellia papyrifera in rats
The toxicological effects of aqueous suspensions of the resins of Commiphora molmol Engl. ex Tschirch and Boswellia papyrifera Hochst on Wister albino rats were studied using 14 days acute, 28 days sub-chronic and single dose treatment. The mean body weights, hematological and biochemical analysis were evaluated. The acute treatment with either C. molmol or B....
July 2009
Evaluation of analgesic and anti-inflammatory activities of Oscillatoria willei in experimental animal models
The methanol extract of oscillatoria willei (MECO) was investigated by hot plate and acetic acid induced writhing method to assess its analgesic activity. The extract was evaluated using carrageenan induced paw oedema method and cotton pellet induced granuloma method for its effect on acute and chronic phase inflammation models in rat as well as analgesic activity in mice. It was found that extract caused an...
July 2009
Anti-bacterial activity of Acorus calamus and some of its derivates against fish pathogen Aeromonas hydrophila
Eighteen compounds isolated from the residue of Acorus calamus were subjected to micro titer assay to find out their inhibitory concentrations (IC) against Aeromonas hydrophila. The antimicrobial potency of the substances was ranked through bioautographic assay. The second compound (F2) obtained in the third fraction, on serial dilution, exhibited the maximum antimicrobial property with...
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