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Chemical composition, antimicrobial activity and antiviral activity of essential oil of Carum copticum from Iran

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Author(s): Reza Kazemi Oskuee | Javad Behravan | Mohammad Ramezani

Journal: Avicenna Journal of Phytomedicine
ISSN 2228-7930

Volume: 1;
Issue: 2;
Start page: 83;
Date: 2011;
Original page

Keywords: Carum copticum | Chemical composition | Essential oil | Antimicrobial activity | Antiviral activity

ABSTRACT
Objectives: Evaluation of therapeutic effects of Carum copticum (C. copticum) has been the subject of several studies in recent years. Thymol the major component of C. copticum is a widely known anti-microbial agent. In this study, the antibacterial and anti viral activities of essential oil of C. copticum fruit were determined.Materials and Methods: Essential oil of C. copticum was analyzed by means of gas chromatography-mass spectrometry (GC-MS). The antimicrobial activity of the oil was evaluated against six Gram (+/-) bacteria and fungi, using the micro broth dilution technique. Antiviral activity of the essential oil was evaluated using a Bacillus phage CP51.Results: From the ten identified constituents, representing 98.7% of the oil, thymol (72.3%), terpinolene (13.12%) and o-cymene (11.97%) were the major components. It was found that the oil exhibited strong antimicrobial activity against Staphylococcus aureus (S. aureus) and Bacillus subtilis (B. subtilis) (MIC, 0.00025% v/v). Furthermore, the antiviral activity of the oil was evaluated by plaque reduction assay.Conclusion: The essential oil showed an antiviral activity against phage when phage was pre-incubated with the essential oil prior to its exposure to B. cereus and without any pre-incubation with the phage, suggesting that the oil directly inactivated virus particles.
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