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COMPARATIVE STUDIES ON BIOTHERAPEUTIC POTENTIALS OF TWO SELECTED MEDICINAL PLANTS- PIMENTA DIOICA AND EPIPHYLLUM OXYPETALUM
1Dept. of Biotechnology, New Horizon College of Engineering, Marathahalli, Bangalore, Karnataka, India 2BE Biotechnology Alumni (Batch 2008-2012) 3Research Associate, NDRI- Southern Regional Station, Bangalore, Karnataka, India.
ABSTRACT Pimenta dioica is a variety of sweet pepper used as a spice and its leaves are used for traditional culinary purpose. Epiphyllum oxypetalum is a species of cactus and can be used as a substitute for digitalis. Scanty work has been reported on the phytochemical properties, assessment of nutritive value and bio-therapeutical potentials of these two important medicinal plants. Thus, the present investigation was carried out to access and compare the nutritive values, phytochemical constituents and biotherapeutic potentials of leaf extracts of both the plants. The nutritive values showed significant presence of proteins (12 mg/g and 14 mg/g), fatty acids (5.8 mg/g and 4.6 mg/g), and vitamins (0.12mg/g and 0.18 mg/g) in Pimenta dioica and Epiphyllum oxypetalum respectively while carbohydrates were found to be absent in both the plants. Phytochemical analysis of both the plants showed the presence of saponins, phenolic compounds, steroids, glycosides, tannins, terpenoids, and resins. Three solvent systems, (aqueous, acetone and methanol) were studied for Pimenta dioica leaf extract. Maximum zone of inhibition was exhibited by methanol leaf extracts in increasing order for Escherichia coli, Bacillus cereus, Salmonella typhimurium, and Staphylococcus aureus. Lesser inhibitory zones were obtained by acetone leaf extracts. Three solvent systems, (ethanol, acetone and petroleum ether) were studied for Epiphyllum oxypetallum leaf extract. Maximum zone of inhibition was exhibited by acetone and petroleum ether (14mm) leaf extracts for Escherichia coli, acetone (14mm) for Staphylococcus aureus, acetone (11mm) and ethanol (10mm) for Klebsiella pneumonia and petroleum ether (12mm) for Bacillus subtilis. Leaf extracts of both the plants were found to be ineffective against fungal strains tested. Present investigation revealed that Pimenta dioica and Epiphyllum oxypetalum leaves could be a very useful resource as biotherapeutic agents. Keywords: Pimenta dioica, Epiphyllum oxypetalum, leaf extracts, phytochemicals, Antibacterial activity, reducing ability. [Download Article] [Download Certifiate] |
