ANTIBACTERIAL AND CYTOTOXIC EFFECTS OF EXTRACTS OF SELECTED MEDICINAL PLANTS OF FAMILY APOCYNACEAE
Viji. M. O*, Neeba Wilson and Iyna Bastian
ABSTRACT
The present study was conducted to evaluate the antibacterial and cyto toxic properties of chloroform, ethyl acetate and methanolic extract of leaves of Nerium indicum, Ichnocarpus frutescens, Tabernaemontana alternifolia, Tabernaemontana divaricata, Catharanthus roseus. The test gave positive results regarding antibacterial activity with inhibition zone diameter ranging from 2mm-17mm. Methanolic extract of the leaves of Tabernaemontana divaricata showed highest activity. In the brine shrimp lethality test all the extract showed significant results. Percentage of lethality was concentration dependent. Percentage of mortality was assessed as LC50 value of the plant extracts which were found to be ranging from 68.2µg/ml to 11.3µg/ml. The study confirmed antimicrobial and cytotoxic property of the plants and its potential as source of plant based drugs.
Keywords: Nerium indicum, Ichnocarpus frutescens, Tabernaemontana alternifolia, Tabernaemontana divaricata, Catharanthus roseus, antibacterial activity, cyto toxic activity.
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