alexa Chemical composition and antibacterial activity of essential oils of Lantana camara, Ageratum houstonianum and Eupatorium adenophorum.


Journal of Microbial & Biochemical Technology

Author(s): Kurade NP, Jaitak V, Kaul VK, Sharma OP

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Abstract Essential oils have applications in folk medicine, food preservation, and as feed additives. The essential oils of Lantana camara Linn. (Verbenaceae), Ageratum houstonianum Mill. (Asteraceae) and Eupatorium adenophorum Spreng. (Asteraceae) were analyzed by Gas chromatography-mass spectrometry (GCMS). In L. camara oil, of the total identified (83.91\%) volatile constituents, five constituents [3,7,11-trimethyl-1,6,10-dodecatriene (28.86\%), beta-caryophyllene (12.28\%), zingiberene (7.63\%), gamma-curcumene (7.50\%) and alpha-humulene (3.99\%)] represented the major ones. In A. houstonianum oil, among the total identified volatile constituents (94.51\%), three [precocene-II (52.64\%), precocene-I (22.45\%) and beta-caryophyllene (9.66\%)] represented the major ones. In E. adenophorum oil, of the total identified volatile constituents (84.95\%), six [1-napthalenol (17.50\%), alpha-bisabolol (9.53\%), bornyl acetate (8.98\%), beta-bisabolene (6.16\%), germacrene-D (5.74\%) and alpha- phellandrene (3.85\%)] represented the major ones. The antibacterial activity expressed as Minimum Bactericidal Concentration (MBC) (microg/mL) was determined by the broth dilution method. The essential oil of E. adenophorum had antibacterial activity against Arthrobacter protophormiae, Escherichia coli, Micrococcus luteus, Rhodococcus rhodochrous, and Staphylococcus aureus with MBC values of 200, 100, 100, 12.5, and 200, respectively. The essential oil of A. houstonianum showed antibacterial activity against M. luteus and R. rhodochrous with MBC of 100 and 12.5, but not against A. protophormiae, E. coli, and S. aureus. The essential oil of L. camara showed antibacterial activity against A. protophormiae, M. luteus, R. rhodochrous and S. aureus with MBC of 50, 25, 12.5, and 200, respectively, but not against E. coli. MBC was lowest for R. rhodochrous for all the three essential oils. This article was published in Pharm Biol and referenced in Journal of Microbial & Biochemical Technology

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