Comparison of Essential Oils fromMarrubium vulgareL. andM. peregrinumL.

Abstract
The chemical composition of the essential oils obtained from the flowering aerial parts of Marrubium vulgare L.. and Marrubium peregrinum L. were determined by GC/MS. Twelve components were identified in M. vulgare oil with β-caryophyllene (45.8%) and germacrene D (14.4%) being the major constituents. In M. peregrinum oil, sixteen compounds were identified with β-caryophyllene (31.3%), germacrene D (28.1%) and bicyclogermacrene (15.3%) predominating.