Isolation, Formulation and Assessment of Anti-inflammatory Properties of Ursolic Acid from<i> Nerium oleander</i>

Abstract

Purpose: The purpose of the research work was the extraction and isolation of Ursolic Acid (URA) from the leaves of Nerium oleander (N. oleander) and the assessment of its anti-inflammatory activity using an in-vitro model. Methods: Ursolic Acid (URA) is a bioactive molecule. It is a key component of N. oleander. The hydroalcoholic maceration method was used for extract preparation and was used to isolate the bioactive components of URA. The prepared extract, isolated URA were characterize and analyse by using pharmacognostic parameters, Fourier Transform Infrared (FTIR) and Thin Layer Chromatography (TLC) method. The carrageenan-induced inflammation rat paw oedema test in-vitro model was used for the assessment of anti-inflammatory properties of isolated bioactive compound URA. Results: The results of evaluation and characterization indicated that the extract’s ash value and extractive values were within the parameters specified in the Indian Ayurvedic Pharmacopoeia. The prepared hydroalcohalic extract has potential bioactive components such as flavonoids, saponins, and triterpinoids. The isolated compound was URA. The extract may be able to alleviate inflammation, according to the percentage inhibition. Conclusion: The URA was successfully removed from the leaves of N. oleander. The examination criteria revealed that the extract contained certain small contaminants, which may have anti-inflammatory effects.