Vijay Kumar M

Barlaria buxifolia Linn is one of the medicinal plants well documented traditionally in Ayurveda system of medicine and is highly valued in modern medicine owing to the presence of alkaloids, flavonoids, tannins, phenolic compounds, steroids. The plant is reported to contain phenol, flavonoid and tannin; phenolic and flavonoids compounds are reported to possess antioxidant and hence the plant may be used as organ protective. Keeping this in view, the plant was analysed for total phenol, flavonoid and tannin content. Catechol, quercetin and tannic acid reagents were used as standards for calibration of total polyphenols, flavonoids and tannins respectively. The quantification of total polyphenol, falvonoid and tannin content showed 14.65mg/gm catechol, 26.80mg/gm quercetin and 11.32mg/gm tannic acid equivalent respectively, the study indicates that the leaves of Barlaria buxifolia Linn exhibits the highest flavonoid, phenolic and tannin content. It can be used potentially as a readily accessible source of natural antioxidant. Key words: Catechol, Phenol, Flavonoid, Quercetin and Tannin, Barlaria buxifolia Linn

  The present study aimed at evaluating the in vitro antimicrobial activity of various extracts of the stem bark of Bauhinia variegata Linn. In the current study, the petroleum ether, chloroform, ethyl acetate, ethanol and aqueous extract of stem bark of B. variegata L. was tested against standard bacterial and fungal cultures. The test was performed by agar well diffusion method on nutrient agar media and Sabouraud’s dextrose media for bacterial and fungal cultures respectively. Among the solvent extracts, ethanolic extract was effective against all the tested bacteria and fungi. Ethanolic extract exhibited maximum inhibitory activity against Klebsiella. And the least activity was observed for Staphylococus aureus. For fungi ethanolic extract was more effective against Aspergillus fumigates. Key words: Antibacterial, Antifungal, Bauhinia variegata L.