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Chemical composition, antimicrobial and antioxidant activities of the essential oils of Œnante virgata Poiret aerial parts, endemic in North Africa

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Author(s): Amar ZELLAGUI | Noureddine GHERRAF | Salah AKKAL

Journal: International Journal of Medicinal and Aromatic Plants
ISSN 2249-4340

Volume: 2;
Issue: 2;
Start page: 235;
Date: 2012;
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Keywords: Œnante virgata | essential oils | antibacterial activity | antioxidant activity

ABSTRACT
Essential components of the aerial parts of Œnante virgata have been studied by gas chromatography-mass spectrometry to afford 27 component, the major components were found to be, Citral (41.71%), α-Bisabolol (21.81%) Dihydrocarviol acetate (11.37%). The antimicrobial activity of the essential oils were evaluated by disc diffusion method and tested against Gram-negative Escherichia coli, Staphylococcus aureus and Gram-positive Pseudomonas aerogenosa and Klebsiella pneumonia bacteria. The essential oil showed a strong antibacterial activity against, Escherichia coli, Staphylococcus aureus and Klebsiella pneumonia at low concentration 25 µg/ml. The essential oils were screened for their possible in vitro antioxidant activity by DPPH free radical-scavenging test. The findings showed that percentage of reduction is 13.22 at 1M.
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