Title: Composition and antibacterial activity of essential oil from <i>Scutellaria grossa</i> Wall ex Benth.
Abstract: Abstract The chemical composition of the steam volatile oil of the whole aerial part of Scutellaria grossa Wall ex Benth. (Lamiaceae), obtained by steam distillation, has been analysed by capillary GC and GC-MS. The oil was found to be rich in oxygenated monoterpenes (88.6%). A total of 50 constituents were identified, representing 94.4% of the total oil composition. Linalool (37.0%) and 1-octen-3-ol (32.0%) were found to be the principal constituents. The antibacterial activity of the oil was determined against 10 bacterial strains by measuring the growth inhibitory zones. The oil showed significant antibacterial activity against Gram-positive bacteria, Bacillus subtilis and Enterococcus faecalis, and the Gram-negative, Klebsiella pneumoniae and Salmonella enterica enterica. A minimum inhibitory concentration of 31.25 µL mL–1 was observed against E. faecalis. Keywords: Scutellaria grossa Lamiaceaeessential oil compositionlinalool1-octen-3-olantibacterial activity Acknowledgements We are thankful to Professor Y.P.S. Pangtey, Botany Department, Kumaun University, Nainital, and the Botanical Survey of India, Dehradun, India, for the identification of plant specimen. Mr. Lalit Mohan is thankful to Uttarakhand Council for Science & Technology, Dehradun, India, for Fellowship through a project grant (No.UCS&T/ R&D/CHEM-10/ 07-08/1835/1).
Publication Year: 2011
Publication Date: 2011-11-07
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 19
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