Étude de l'activité antioxydante et antibactérienne des huiles Essentielles du genre Thymus
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Date
2024
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Publisher
Abbes LaghrourUniversity,Khenchela
Abstract
This study aims to evaluate the antioxidant power and antibacterial activity of essential oils
extracted from a plant belonging to the genus Thymus, collected in the Chechar region. The oil is
extracted by hydrodistillation from a aerial parts of the plant (stem, leaf, flower). The in-vitro
antioxidant activity of the obtained extracts was evaluated using the DPPH method. According to
the results obtained, the highest concentration of antiradical essential oil was found to be 57.30 μl
.
Using the disk diffusion method to assess the antibacterial activity of the essential oils alone,
a remarkable effect of the Thymus oil collected in Chechar on Staphylococcus aureus was
observed, with an inhibition zone diameter of 22.01 mm. There was a moderate effect on
Pseudomonas aeruginosa and a weak effect on Escherichia coli.
The aromatogram on solid medium (disk method) was used to evaluate the antimicrobial
efficacy of Thymus essential oils alone and in synergy with two antibiotics, oxacillin and
gentamicin, on two bacterial strains, Staphylococcus aureus and Escherichia coli.
In conclusion, the study of the antioxidant and antibacterial activity of Thymus essential oils
offers promising prospects in the field of biomedical research.