5. Chemical constituents and antimicrobial activity of the essential oil of Lantana xenica Mold. (Verbenaceae

JULIANI, H.R.; BIURRUN, F; KOROCH, A.R.;; OLIVA, M. M.; TRIPPI,V; DEMO, M.S; ZYGADLO, J

PLANTA MEDICA

Año: 2002 vol. 68 p. 762 - 764

0032-0943

The aim of this work was to evaluate the chemical composition of Lantana xenica essential oil and its antimicrobial activity. The oil from the aerial parts of Lantana xenica Mold. (Verbenaceae) was obtained by steam distillation and analysed by gas cromatography/mass spectrometry. The major constituent of the oil was (E)-caryophylllene (35,2%) with minor amounts of g-cadinene (13,3%), a-pinene (9,3%), ocimene (9,2%) and germacrene D (6,6%). The antimicrobial assays showed tha the essential oil of L.xenica inhibited the growth of Bacillus cereus and Proteus mirabilis and both bacteria were inhibited by (E) caryophyllene, the major component of the oil. Enterococcus faecalis, Staphyloccoccus epidermidis and S aureus showed a lower inhibition. The bacteria Micrococcus luteus, Klebsiella sp, Escherichia coli and the yeast Candida albicans were insensitivie to bothe the oil and (E)-caryophyllene.