Tagetes Filifolia Lag Essential Oil. Chemical Composition and Antibacterial Activity

BEATRIZ LIMA; LÓPEZ SB; ZYGADLO JA; CABALLERO D; PETENATTI E; DEL VITTO LA ; TAPIA A,; SUERO E.

Potrero de los Funes, San Luis

Congreso; XXIX Reunión Científica Anual de la Sociedad de Biología de Cuyo.; 2012

Sociedad de Biología de Cuyo

The essential oils (EOs) are an effective alternative for treatment human infections produced for bacteria. The bacterium E. coli cause persistent infantile diarrhoea and is a major healthcare problem in developing countries. Moreover, the aspiration pneumonia Klebsiella produces different types of infections, such as pneumonia, bloodstream infections, wound or surgical site infection, and meningitis.The antibacterial effect and the chemical composition of EO of Tagetes filifolia Lag. (Asteraceae, Helenieae) collected in San Luis province, Argentina was reported. The chemical characterization was carried out by GC-MS and its antibacterial activity was determined by microdilution method according to CLSI against bacteria of reference and clinical isolates. Fourteen components, representing 100 % of the oil, were identified. Main compounds were trans-anethole (59.5%) and estragole (40.2%). The EO of Tagetes filifolia was active against of K. neumoniae and E. coli with values MICs between 375 and 2000 µg/ml, respectively. The results indicated that these EOs are promising to treat bacterial infections. Acknowledgements: CICITCAI-UNSJ. CONICET (BL and ZJA)