Evaluation of antimicrobial activity of the methanol extracts from 8 traditional medicinal plants.

The methanol extract of 12 medicinal plants were evaluated for its antibacterial activity against Gram-positive (5 strains) and Gram-negative bacteria (10 strains) by assay for minimum inhibitory concentration (MIC) and minimum bacterial concentration (MBC) . The antibacterial activity was determined by an agar dilution method (according to the guidelines of Clinical and Laboratory Standard Institute) . All the compounds (12 extracts) of the 8 medicinal plants (leaf or root) were active against both Gram-negative and Gram-positive bacteria.

Evaluation of Antioxidative Activity of Leaves on Non-lipid Oxidative Damage.

Present study was conducted to evaluate the antioxidative activity of the leaves on non-lipid oxidative damage. The antioxidative activity of methanolic (MeOH) extract of the leaves on non-lipid oxidation, including liposome oxidation, deoxyribose oxidation, protein oxidation, chelating activity against metal ions, scavenging activity against hydrogen peroxide, scavenging activity against hydroxyl radical and 2'-deoxyguanosine (2'-dG) oxidation were investigated. The MeOH extract of the leaves exhibited high antioxidative activity in the liposome model system.