Variation in the essential oil composition and antimicrobial activity of Baccharis spartioides (H. et A.) J. Rimy from three regions of Argentina

MARÍA M. OLIVA; MARÍA P. ZUNINO; MARÍA L. LÓPEZ; YANINA A. SORIA; FLAVIO N. YBARRA; LILIANA SABINI; FERNANDO BIURRUM; MIRTA S. DEMO; JULIO A. ZYGADLO

JOURNAL OF ESSENTIAL OIL RESEARCH

Allured Publishing Co.

Lugar: Winston-Salem; Año: 2007 vol. 19 p. 509 - 513

1041-2905

Abstract Hydro-distilled volatile oils of Baccharis spartioides from three populations of Argentina (Northwest, Central and Patagonia areas) were analyzed by using GC/MS. Thirty-nine compounds were identified in the oils and a relatively high variation in their contents and in their antimicrobial activity was found. The main constituents of essential oils were camphor (26.5-50%), limonene (4.3-35.8 %), citronellal (12 %), carvone (10 %) and spathulenol (2.1-11.8 %). The oil was tested against ten Gram-positive and Gram–negative bacteria and against the yeast Candida albicans. The best antimicrobial activity of the essential oils of B. spartioides was against S. aureus and B. cereus while P. aeruginosa was the most resistant bacteria to all the oils.