Chemical Investigation and Biological Valorization of Two Essential Oils Newly Extracted from Different Parts of <i>Drimia maritima</i>
Yosra Tahri, Imed Koubaa, Doniyez Frikha, Sami Maâlej, Noureddine Allouche
Abstract
For the first time, the chemical constituents of two essential oils extracted by hydrodistillation from Drimia maritima flowers and bulbs were identified using analytical GC-MS analysis. Eugenol (41.23 %) and carvacrol (27.29 %) were the most abundant compounds in bulbs while the major components in flowers were p-vinylguaicol (14.33 %), eugenol (8.49 %) and carvacrol (7.51 %). The antioxidant activity of both essential oils was evaluated using three methods DPPH, ABTS+. and total antioxidant capacity. The results showed that essential oils from bulbs and flowers exhibited a strong antioxidant capacity compared to Trolox and Vitamine E. Additionally; the samples were evaluated for their nitric oxide chelation activity and showed an important scavenging effect with IC50 5.05 and 5.12 μg/mL for bulbs and flowers respectively. Furthermore, both essential oils were endowed with effective antimicrobial properties. It was noticed that the extents of antioxidant and antibacterial activities of Drimia maritima essential oils are in accordance with their high amount of eugenol and carvacrol.