Abstract

The Essential oil from the leaf of Datura metel L., obtained from south Lebanon, was tested for their chemical compounds. Furthermore, the present study aimed to estimate the total alkaloid contents of seeds, fruits, stems, and leaves extracts, obtained using two different solvent systems. The volatile compounds were extracted using the Clevenger apparatus and analyzed by GCMS. A total of 22 compounds were separated and 7 compounds of them were identified from the oil. These compounds identified took up 93.43 % of the total peak areas. The result showed the main compounds of the volatile constituents in leaves of D. metel were terpenes. Total alkaloids from different parts of the plant ranged from 0.83 to 5.2 %, and methanol/acetonitrile is the best solvent system. Also, the content of alkaloids in fruits was the highest, followed by seeds and leaves, the least were stems. According to the potent activity of the founded compounds, essential oils of D. Metel plants examined would be considered as promising holders of bioactive phytochemicals. Further investigations are a must to evaluate the biological activities of this plant.