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  • Title: Essential oils of Retama raetam from Libya: chemical composition and antimicrobial activity.
    Author: Awen BZ, Unnithan CR, Ravi S, Kermagy A, Sasikumar JM, Khrbash AS, Ekreem WL.
    Journal: Nat Prod Res; 2011 May; 25(9):927-33. PubMed ID: 21547844.
    Abstract:
    Retama raetam (Forssk) Webb & Berthel is well known in the folk medicine of North and East Mediterranean regions for the treatment of microbial infections. The powdered leaves are used to heal circumcision wounds and used as an antiseptic for wounds, skin rash and pruritus. In this study, to validate this antiseptic property, the chemical composition and antimicrobial activity of the essential oil from the flowers of R. raetam was evaluated. The oil was obtained using hydrodistillation and was analysed by gas chromatography-mass spectrometry. The antibacterial activity was achieved using disc diffusion and broth dilution assay against six bacteria species. Analysis of the essential oil revealed the presence of β-linalool (51%), 2-decen-1-ol (6.6%) and limonene (7.4%) as the major components. The results showed significant activity against microorganisms, especially Staphylococcus aureus, with inhibition zones and minimal inhibitory concentration values in the range of 5.0 mm and 3.0 mg mL⁻¹, respectively. The results on the antibacterial activity provide scientific support for the use of these plants in traditional herbal preparations.
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