In vitro: |
Process Biochemistry, 2013, 48(4):723-729. | Chemical composition, angiotensin I-converting enzyme (ACE) inhibitory, antioxidant and antimicrobial activities of the essential oil from south Tunisian Ajuga pseudoiva Rob. Lamiaceae[Reference: WebLink] |
The essential oil of Ajuga pseudoiva, collected from Tunisia, was analyzed using gas chromatography-mass spectroscopy. Thirty two compounds accounting for 95.76% of the total oil were identified. Sesquiterpenes were found to be the most abundant components of A. pseudoiva oil. And they were mainly represented by viridiflorol (30.17%), germacrene B (9.26%), (α, β and γ)-eudesmol (8.11%) and Aromadendrene (7.45%).
METHODS AND RESULTS:
The essential oil of A. pseudoiva showed radical scavengers activity (IC50 = 0.72 mg/mL) and displayed lipid peroxidation inhibitory activity (IC50 = 0.6 mg/mL). A. pseudoiva essential oil was also found to exhibit a dose-dependent ACE inhibitory activity with an IC50 value of 65.5 μg/mL. Moreover, the antimicrobial activity of the essential oil was tested against 17 species of microorganisms, and the results obtained showed significant antibacterial activity against the Gram-positive and Gram-negative bacteria, with inhibition zones and minimal inhibitory concentration values of 14–32 mm and 84–137 μg/mL and 6–21 mm and 105–336 μg/mL, respectively. Higher activity was also found against several fungal strains. |
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