Title:Anti-Inflammatory, Antimicrobial and Insecticidal Properties of Daucus Gracilis Steinh Flowers Essential Oil
Volume: 20
Issue: 3
Author(s): Bouhassane Nadia*, Nouria Merad-Boussalah*, Fatima Benyoucef, Arrar Zoheir, Alain Muselli and Mohammed El Amine Dib
Affiliation:
- Laboratoire des Substances Naturelles & Bioactives (LASNABIO), Département de Chimie, Faculte des Sciences, Université Abou Bekr Belkaıd, BP 119, Tlemcen 13000,Algeria
- Laboratoire des Substances Naturelles & Bioactives (LASNABIO), Département de Chimie, Faculte des Sciences, Université Abou Bekr Belkaıd, BP 119, Tlemcen 13000,Algeria
Keywords:
Essential oil, flowers, fumigant pesticides, antifungal effect, Candida albicans, Aspergillus flavus, inhibitory effect.
Abstract:
Background: Daucus gracilis Steinh belongs to the Apiaceae family. The flowers of
this plant have been used by the population of western Algeria for the treatment of mouth ulcers.
However, very few studies exist concerning the biological properties of essential oil of Daucus gracilis
Steinh flowers.
Objectives: The purpose of this work was to study the chemical composition of the essential oil of
Daucus gracilis flowers and to evaluate their antimicrobial, insecticidal and anti-inflammatory
properties.
Methods: The distilled essential oil was analyzed by GC and GC-MS. The antimicrobial activity of
the essential oil was evaluated using two methods i) diffusion method, and ii) micro dilution technique.
The insecticidal activity of essential oil was evaluated against adults of Tribolium confusum
by fumigant test. The in vitro assessment of the anti-inflammatory property of essential oil was assessed
by the protein denaturation method.
Results: Daucus gracilis flowers essential oil mainly represented oxygenated monoterpenes such
as geranyl acetate (18.3%), lavandulyl acetate (15.2%), lavandulyl isobutyrate (13.6%) and citronellyl
isobutyrate (6.8%). According to the results of antimicrobial activity, the essential oil of flowers
presented prominent inhibitory action against Aspergillus flavus (0.06 μg/mL), followed by Staphylococcus
aureus, Escherichia faecalis, Bacillus cereus and Candida albicans with MIC values of
0.125 μg/mL. The Daucus gracilis essential oil flowers proved to be very biocidal toward adults of
Tribolium confusum; mortality of 100% of the population was noted with a dose of 2 μl/L air after
24 hours of exposure. Furthermore, the oil has shown a very good inhibition of protein denaturation
comparable to Diclofenac at a concentration of 30 μL/mL.
Conclusion: Daucus gracilis essential oil can be used as a pharmacological tools for inflammatory,
antimicrobial and insecticidal properties.