ORIGINAL ARTICLE
Year : 2013  |  Volume : 12  |  Issue : 2  |  Page : 173-176

Chemical composition and antimicrobial activity of volatile constituents from the roots, leaves, and seeds of Arctium lappa L. (Asteraceae) grown in Egypt


1 Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
2 Department of Pharmacognosy, National Organization for Drug Control and Research (NODCAR), Cairo, Egypt

Correspondence Address:
Elsayed A Aboutabl
Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr-el-Aini Street, 11562 Cairo
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1687-4315.124036

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Background and objective As no literature was traced dealing with the volatile constituents of the leaves or the seeds of Arctium lappa L., it was deemed of interest to carry out a gas chromatography/mass spectrometry (GC/MS) analysis and antimicrobial activity study of the volatile constituents of roots, leaves, and seeds of the plant grown in Egypt. Materials and methods The volatile constituents of the roots, leaves, and seeds were analyzed by GC/MS. The antimicrobial activity was tested using the agar well diffusion technique. Results and conclusion GC/MS of the volatile constituents from the leaves showed 19 identified compounds, the major being caryophyllene oxide (54.2%), followed by β-elemene (6.2%) and β-costol (4.0%). Analysis of the volatile constituents of the roots revealed 14 identified compounds, the major being caryophyllene oxide (51%), followed by aromadendrene (16%) and isoaromadendrene epoxide (6.4%). Analysis of the volatile constituents of the seeds revealed 22 identified compounds, the major being E-citral (28.8%), followed by geraniol (20.3%) and Z-citral (9.5%). The volatile constituents of the leaves and roots exhibited moderate antimicrobial activity against bacteria and significant antifungal activity, in comparison with the standards used, whereas the volatile constituents of the seeds showed moderate antimicrobial activity against bacteria and fungi.


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