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  • Chem Sci Trans., 2018, 7(3),  pp 499-505  

    DOI:10.7598/cst2018.1513

    Research Article

    Essential Oil Composition and Antibacterial Activity of Agrimonia Pilosa Ledeb (Rosaceae)

  • D.S. DHAMI1*, G.C. SHAH1, VINOD KUMAR1, YOGESH JOSHI2, MANISH TRIPATHI2 and M. BISHT1
  • 1Department of Chemistry, Kumaun University, Campus Almora-263601, Uttarakhand, India
    2Department of Botany, Kumaun University, Campus Almora-263601, Uttarakhand, India
  • Abstract

    Essential oil composition of the aerial parts of Agrimonia pilosa Ledeb growing wild in the central Himalayan region of Uttarakhand, India was analyzed by capillary gas chromatography (GC-FID) and gas chromatography?mass spectrometry (GC?MS). A total of 15 constituents were identified, representing 95.29% of the oil composition. The oil consisted mainly of oxygenated monoterpenes (75.74%) followed by monoterpene hydrocarbons (18.68%). Major constituents identified were methyl myrtenate (71.39%), limonene (11.86 %), α-thujone (5.66%) and myrtenyl acetate (3.14%). The essential oil showed a broad spectrum of antibacterial activity against both the human and plant pathogenic bacteria. Oil showed the highest activity against human pathogenic bacteria K. Pneumonia (7.33 mm, MIC 175 μL/mL) and P. Aeruginosa (7.00 mm, MIC 175 μL/mL). Plant pathogenic bacteria R. solanacearum (6.70 mm, MIC 175 μL/mL) was found less resistant against the oil. The results showed that oil containing methyl myrtenate a major constituent has potential for treatment of infections caused by these pathogenic bacterial strains.

    Keywords

    Rosaceae, Agrimonia pilosa Ledeb, Essential oil, Antibacterial activity, Methyl myrtenate.

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