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Composition and antibacterial activity of the essential oil of Artemisia nilagirica var. septentrionalis from India
- Goswami, Prakash, Chauhan, Amit, Verma, Ram S., Padalia, Rajendra C., Verma, Sajendra K., Darokar, Mahendra P., Chanotiya, Chandan S.
- The Journal of essential oil research 2016 v.28 no.1 pp. 71-76
- Artemisia, Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella Typhimurium, Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus mutans, aerial parts, alcohols, antibacterial properties, beta-caryophyllene, bornyl acetate, essential oils, gas chromatography-mass spectrometry, germacrene, monoterpenoids, India
- Essential oil composition of the aerial parts of Artemisia nilagirica (Clarke) Pamp. var. septentrionalis Pamp. was analyzed by GC-FID and GC-MS methods. Altogether forty-one constituents were identified, accounting for 95.9% of total composition. The essential oil was characterized by monoterpenoids (76.6%) represented by artemisia ketone (62.6%), artemisia alcohol (3.7%), perillene (3.1%), bornyl acetate (1.4%), along with sesquiterpenoids (16.1%) viz. β-caryophyllene (3.5%), α-muurolol (3.5%), δ-cadinene (2.1%) and germacrene D (1.8%). Essential oil was tested against nine pathogenic bacterial strains viz. Staphylococcus aureus (MTCC 96), Staphylococcus aureus (MTCC 2940), Streptococcus mutans , Staphylococcus epidermidis , Bacillus subtilis , Klebsiella pneumoniae , Escherichia coli , Pseudomonas aeruginosa , and Salmonella typhimurium. Based on zone of inhibition and MIC/MBC results, it is concluded that the essential oil of A. nilagirica var . septentrionalis exhibited good antibacterial activity against Staphylococcus aureus (MTCC-2940), Staphylococcus aureus (MTCC-96) and Bacillus subtilis , and moderate activity against Escherichia coli , Staphylococcus epidermidis, Salmonella typhimurium , and Streptococcus mutans.