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Chemical Composition and Antimicrobial and Antioxidant Activities of Essential Oils and Various Extracts of Juniperus phoenicea L. (Cupressacees)

Ennajar, Monia and Bouajila, Jalloul and Lebrihi, Ahmed and Mathieu, Florence and Abderrabba, Manef and Raies, Aly and Romdhane, Mehrez Chemical Composition and Antimicrobial and Antioxidant Activities of Essential Oils and Various Extracts of Juniperus phoenicea L. (Cupressacees). (2009) Journal of Food Science , vol. 74 (n° 7). pp. M364-M371. ISSN 0022-1147

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Official URL: http://dx.doi.org/10.1111/J.1750-3841.2009.01277.X

Abstract

GC-FID and GC-MS analysis of essential oils of Juniperus phoenicea  resulted in the identification of 30 compounds, representing more than 98% of the total composition. α-pinene (55.7% and 80.7%), δ-3-carene (10.7% and 4.5%), and γ-cadinene (2.9% and 5.1%) were the main components, respectively, in leaves and berries essential oil. Extracts of J. phoenicea were obtained by different extraction solvents: methanol, ethanol, ethyl acetate, and dichloromethane and evaluated composition for polyphenols (gallic acid equivalent 52 to 217 g/kg), tannins (catechin equivalent 6.5 to 60.2 g/kg), antocyanins (cyanidin equivalent 84 to 373 mg/kg), and flavonoids (quercetin equivalent 6.4 to 29.3 g/kg). The samples (essential oils and extracts) were subjected to a screening for their antioxidant activity by using DPPH and ABTS assays; antimicrobial activity was tested with 6 bacteria (3 Gram-positive and 3 Gram-negative), 1 yeast, and 2 fungi. The strongest antioxidant activity was obtained by the methanolic extract (IC50= 6.5 ± 0.3 mg/L). Flavonoids are likely to contribute to the antifungal activity against Saccharomyces cerevisiae. Correlations were studied between chemical composition and antioxidant and antimicrobial activities.

Item Type:Article
Additional Information:Thanks to Wiley-Blackwell editor. The definitive version is available at http://onlinelibrary.wiley.com The original PDF of the article can be found at : http://onlinelibrary.wiley.com/doi/10.1111/j.1750-3841.2009.01277.x/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+on+9+June+from+10%3A00-12%3A00+BST+(05%3A00-07%3A00+EDT)+for+essential+maintenance
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université du 7 Novembre à Carthage (TUNISIA)
Other partners > Université de Tunis - El Manar II (TUNISIA)
Other partners > Université de Gabès (TUNISIA)
Laboratory name:
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Deposited By: Audrey LEFEVRE
Deposited On:18 Jun 2012 08:23

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