THE EFFECT OF EXTRACTION APPARATUS ON THE CHEMICAL COMPOSITION OF ESSENTIAL OIL FROM THE ENDEMIC DAMASK ROSE (ROSA DAMASCENE MILL) WITH AN ANTIOXIDANT EVALUATION

Rosa damascene Mill is one of the most important Rosa species and has an attractive flavor and fragrance. This research study appraises the effect of extraction techniques on the chemical composition and antioxidant attributes of essential oil from Rosa damascene Mill harvested from the Taif Region in Saudi Arabia. The essential oil extraction was done using stainless steel and copper-based distillation apparatus. A GC-MS analysis of the extracted essential oil revealed the presence of 20 and 28 chemical components, with citronellyl isobutyrate (22.44%) and citronellol (38.57%) identified as the principal components when stainless steel and copper apparatus was used for the purpose of extraction, respectively. The antioxidant activity of the tested essential oil from the Damask rose exhibited a concentration-dependent DPPH radical scavenging activity (R² = 0.980) with IC₅₀ 1.68 µg/mL.

Keywords: Rosa damascene Mill, Antioxidant, Essential oils, GC-MS