Journal
JOURNAL OF ESSENTIAL OIL BEARING PLANTS
Volume 15, Issue 3, Pages 373-379Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/0972060X.2012.10644063
Keywords
Essential oil; antimicrobial activity; Verbascum thapsus; 6,10,14-trimethyl-2-pentadecanone; (E)-phytol
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The composition of the essential oil obtained from the dried flowering aerial parts of Verbascum thapsus L. was analyzed by GC and GC-MS. Ninety-two components were identified in the essential oil of V. thapsus. The major components of the essential oil were 6,10,14-trimethyl-2-pentadecanone (14.3 %) and (E)-phytol (9.3 %). The antimicrobial activity of V. thapsus oil was studied using the disk diffusion method and determination of minimal inhibitory concentration (MIC) values. The V. thapsus oil exhibited concentration-dependent antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Salmonella typhi, Pseudomonas aeruginosa and Aspergilus niger. The essential oil did not show any antimicrobial activity against Escherichia coli and Candida albicans.
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