Abstract: Thevetia peruviana (Pers.) K. Schum is one of the important medicinal as well as ornamental plant belongs to the family Apocynaceae and commonly called as yellow oleander. The cardiac glycosides obtained from bark, kernals, flowers are useful for heart diseases. The present investigation was confined to Thevetia peruviana (Pers.) K. Schum with Thevetia Orange Leaf. The results of phytochemical screening of ethanolic leaf extract shows the presence of alkaloids, flavanoids , glycosides - cardiac glycosides , phenolic compounds, tannins , phytosterols ,terpenoids, carbohydrates , proteins and amino acids. The fixed oils, fats, gums and mucilages were totally absent. The UV and IR spectroscopy of ethanolic leaf extract of Thevetia orange shows the presence of carbonyl groups, β – diketones, aldehydes, ketones ,amides, lactams , sulfur compounds , aromatic compounds, nitro compounds, indole alkaloid- aricine, sarpagine and flavanoids - flavones , flavanones, chalcones, quercetin , sodium salt of quercetin 5‘sulfonic acid [NaQSA], myricetin and fistein. The above mention bioactive compounds are responsible for medicinal properties of the plant.

Keywords: Thevetia peruviana (Pers.) K. Schum, Phytochemical screening, Ultraviolet and Infrared Spectroscopy.

PDF | DOI: 10.17148/IARJSET.2021.81021

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