Extraction of oil from Maesa lanceolata seeds and evaluation of its antimicrobial activities

Abstract

Now a day utilization of plants’ extract as alternative medicine becomes a common practice all over the world merit many scientists to examine the antimicrobial activity of several medicinal plants. Maesa lanceolata is one of such ethnomedicinal plant traditionally utilized as a cure for the treatment of pain against various diseases. Besides, there is plenty of research done on the determination of which potential constituents of this plant are responsible for such treatment. In this study, an attempt has been made to extract oil from Maesa lanceolata seed using n-hexane solvent, evaluate its physio-chemical properties, and antimicrobial activity on a selected strain of bacterial and fungal. The maximum oil yield of 35.3% was obtained at the optimum parametric values; extraction temperature of 70 ◦C, extraction time of 6 h, solute to solvent ratio of 0.06 g/ml, and particle size of 0.25 mm. The chemical compositions and functional group of the extracted oils were determined using Gas Chromatography mass spectroscopy and Fourier Transform Infrared Spectroscopy analysis. The result shows that the abundant fatty acid was monounsaturated oleic acid C18:1 (53.49%) and poly-unsaturated linoleic acid C18:2 (31.48%). The qualitative analysis test of the extracted m. lanceolata seed oil shows the presence of different phytochemical constituents which are microbial resistant and having an antimicrobial activity like flavonoids, alkaloids, tannins, saponin, Terpenoids, and phenols.