Antimicrobial and Antioxidant Activities of Algerian Lavandula Stoechas Essential Oil

Abstract

Lavandula stoechas is one of the most traditionally used plants in Algeria, for the treatment of painful diseases such as inflammatory diseases, cystitis, nephritis and rheumatic arthritis. Our present study focuses on the evaluation of antimicrobial and antioxidant activity of the essential oil extracted by hydrodistillation from the aerial parts of Lavandula stoechas samples harvested in May 2022 at Bouhinoune, a village in Tizi ouzou located at 300 m altitude.The chemical composition of the essential oil was evaluated by GC/MS and the antioxidant activity by the DPPH method. The antimicrobial activity was tested against three gram positive and two gram negative bacterial by the use of the disc diffusion method. GC-MS analysis showed that our essential oil is rich in fenchone, camphor and eucalyptol. The essential oil of Lavandula stoechas showed good antioxidant activity compared to ascorbic acid and an interesting inhibitory effect against grampositive bacteria with inhibition diameters greater than or equal to that recorded with the reference antibiotic. This valuable antibacterial activity is undoubtedly linked to the strong presence of fenchone, eucalyptol, camphor, linalool and linalyl acetate in the essential oil.

Keywords

• Lavandula stoechas
• Essential oil
• Antioxidant activity
• Antimicrobial activity
• Disc diffusion

References

1. Chaouchi, O & Fernane, F, (2024). Antimicrobial and antioxidant activities of Algerian Lavandula Stoechas essential oil.. The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 29, 16- 21.