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  • Title: Chemical composition and antibacterial activity of the essential oil of Monticalia andicola (Asteraceae) collected in Venezuela.
    Author: Baldovino S, Rojas J, Rojas LB, Lucena M, Buitrago A, Morales A.
    Journal: Nat Prod Commun; 2009 Nov; 4(11):1601-4. PubMed ID: 19967999.
    Abstract:
    The essential oil from the leaves of Monticalia andicola Turcz., collected in November 2008, was analyzed by GC/MS. A yield of 0.15% oil was obtained by hydrodistillation. Thirty-six components were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components were alpha-pinene (19.6%), beta-pinene (10.5%), alpha-longipinene (6.5%), delta-3-carene (6.2%), cyperene (5.4%) and beta-phellandrene (5.2%). The antibacterial activity of the essential oil was evaluated against Gram- positive (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212) and Gram-negative (Escherichia coli ATCC 25992, Klebsiella pneumoniae ATCC 23357, Pseudomonas aeruginosa ATCC 27853) bacteria, using the disc diffusion agar method. The results showed a broad spectrum of activity with minimal inhibitory concentration (MIC) values ranging from 10 to 150 microg/mL.
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