Grewia tenax (Forssk.) Fiori (Malvaceae) grows in the Arabian Peninsula and is used for several medicinal purposes. To characterize dermatological bioactivities of G. tenaxin terms its antimelanoma, antityrosinase antioxidant activities. Cytotoxicity was assessed by cell proliferation mitochondrial viability assays. Ability to inhibit mushroom tyrosinase scavenge free radicals were evaluated an...

The emergence of resistant microorganisms towards standard antibiotics has stimulated an on-going exploration for new sources antimicrobials. microbial susceptibility extracts produced from leaf, bark, or rhizome parts nine different New Zealand bushes was investigated using liquid broth dilution and agar plating techniques. Minimum inhibitory (MIC) lethal concentrations (MLC) were expressed in...