Composition and antimicrobial screening of the essential oil from the leaves and stems of senecio atacamensis phil. From chile

JULIO BENITES ^[1] ; FELIPE BRAVO ^[1] ; MAURICIO ROJAS ^[1] ; ROSE FUENTES ^[1] ; CRISTINA MOITEIRO ^[1] ; FLORÊNCIA VENÂNCIO ^[2]
1. [1] Universidad Arturo Prat
  
  Universidad Arturo Prat
  
  Iquique, Chile
2. [2] Universidade de Lisboa
  
  Universidade de Lisboa
  
  Socorro, Portugal
Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 56, Nº. 2, 2011, págs. 712-714
Idioma: inglés
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Resumen
- An essential oil from Senecio atacamensis Phil. (Asteraceae) was obtained by hydrodistillation of its aerial parts (leaves and stems) and its composition was determined by GC and GC/MS analysis. The identification by GC of the essential oil components, in both leaves and stems respectively, showed α-terpinene (36.05% and 20.57%); α-phellandrene (27.79% and 25.37%), and p-cymene (11.85% and 22.55%) as the most abundant monoterpenes. Furthermore, the oil was tested for its antimicrobial activity using paper disc diffusion and the dilution broth method, exhibiting moderate inhibition of human pathogenic bacteria.