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1 Polish Journal of Chemistry

1 2006

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Chemical Composition and Antimicrobial Activity of the Essential Oils from Aerial Parts of Two Marrubium sp. (Lamiaceae) GrowingWild in Lebanon

Grassia A., Senatore F., Arnold A., Bruno M., Piozzi F., Rigano D., Forimsano C.

Polish Journal of Chemistry

2006

Vol. 80, nr 4

623-628

The essential oils of aerial parts of Marrubium globosum Montbr. etAuch. ex Benth. ssp. libanoticum (Boiss) Davis and M. cuneatum Banks et Solander (Lamiaceae) growing wild in Lebanon were obtained by hydrodistillation and were analysed by GC and GC-MS. Altogether 64 compounds, representing 93.4% and 91.4% of the oils,were identified. The main components of both oils were beta-caryophyllene (12.4%-5.2%), hexadecanoic acid (7.4%-6.5%) and spathulenol (5.2%-6.5%). Bicyclogermacrene (5.2%) was present only in the oil of M. cuneatum characterized by high amount of germacrene D (15.6%). Oils showed a moderate antimicrobial activity.