Chemical composition, repellence and toxicity properties of Zuccagnia punctata essential oil

LÓPEZ S; ARAGÓN L; TAPIA A; FERESIN GE; ZYGADLO J; LÓPEZ M L

Mendoza, Argentina

Congreso; XXVIII Congreso Anual de la Sociedad de Biología de Cuyo; 2010

The aerial parts of Zuccagnia punctata Cav. (Fabaceae, Caesalpinoideae) are currently used in traditional medicine of San Juan province, Argentine as an antiseptic and to treat inflammation.. Z. punctata essential oil from aerial parts was examined by GC and GC-MS and evaluated for its repellence and toxicity properties against Triatoma infestans and Ceratitis capitata. Fresh aerial parts collected in San Juan Province, were subjected to hydro distillation for 2 h in a modified Clevenger apparatus. The oil yield was 0.25% . Twenty five constituents were identified representing 99.5%. 6-camphenone (62.4%), alpha pinene (9.1%), thuja-2,4(10)-diene (4.6%) and eugenol (dihydro) (4.5%) were found to be the major components. The lethal dose of toxicity (LD50) was determined using Probit analysis based on mortality data at 72 h assessments determined by topical application againts female (LD50 56,990 µg/insect) and  male (LD50 27,181 µg/insect) of C. capitata. On the other hand, Z. punctata essential oil showed a repellent activity against T. Infestans of 86,66 % equivalent to V class. This a first reports on chemical analysis and biological activity of the essential oil from Z punctata collected in San Juan, province Acknowledgements: To ProCEM-San Juan and Serv, Nac. Chagas, Cba. CICITCA UNSJ (I905), ANPCyT (PICT ´07- 01468) and CONICET (PIP´08 0407).