VARIATION IN THE COMPOSITION OF ESSENTIAL OIL OF LIPPIA TURBINATA “POLEO” (GRISEB.) IN DIFFERENT CONDITIONS

MORICONI J I; FERNANDEZ E A; MARTINEZ E.; GIULETTI A.

Huerta Grande - Cordoba - Argentina

Congreso; 1° Reunión Conjunta de las Sociedades de Biología de la República Argentina; 2007

Sociedad Argentina de Biología

The «Poleo» is a shrub needed in popular medicine and for the elaboration of liquors and compound herbs, is pressed by overexploitation. His spread has been studied and in this work there was studied the composition of the essential oil (AE) in plants that are cultivated in the highland locality of Juana Koslay, San Luis (33º 15´ lat. Sur; 66º 12´ long. Oeste). With plants obtained of seed (year 2003) culture began in two conditions: 1- dryness and 2- Irrigation + organic fertilization. In December, 2005 leaves and branches took, of the cultures 1, 2 and of plants that grow wild in the zone, for AE cuali-quantitative determination. The samples were revealed by steam dragging, with column and chamber of extraction and they analyzed for CG-FID-MS using an equipment Perkin Elmer model Clarus 500. The most representative compounds in the AE were: cis-α-bisaboleno, limoneno, β cariofileno, Germacreno D, in each of the cases, with the following percentages, respectively: 1- Dryness: 22,25%; 19,14%; 17,31%; 10,4%. 2- Irrigation: 17,98%; 11,96%; 10,82%; 16,17%. 3- Wild: 9,26%; 24,10%; 12,67%; 6,6%. The presence was not detected of lippiona not dihidrolippiona, considered scoreboards filécticos of poleo in the Argentine north. The environmental conditions affect AE’s composition in poleo.