DETERMINATION OF THE TERPENES OF THE Pelargonium graveolens PLANT BY HPLC CHROMATOGRAPHY. BIOACTIVITY OF ANTIOXIDANTS.

This study aimed to isolate and characterise terpenoid compounds from Pelargonium graveolens (commonly known as rose-scented geranium) using high-performance liquid chromatography (HPLC). The analysis revealed the presence of various terpenoids at different concentrations, including citronellol (2.433 µg/g, 37.71%), citronellyl formate (1.414 µg/g, 21.89%), geraniol (0.8579 µg/g, 13.29%), 1,8-cineole (0.3097 µg/g, 4.80%), geranyl formate (0.488 µg/g, 6.95%), eugenol (0.4124 µg/g, 6.39%), and α-terpineol (0.536 µg/g, 8.23%). The successful identification of these terpenoids indicates the efficiency of the extraction and isolation methodology employed. Furthermore, the quantification of these bioactive constituents provides a basis for assessing their antioxidant potential by Ferric Reducing Antioxidant Power (FRAP) assay. The results showed a clear increase in activity with increasing concentration, especially when using ethanol as a solvent compared to petroleum ether. [ABSTRACT FROM AUTHOR]