Antibacterial activity and composition of essential oils from flower, leaf and stem of Chaerophyllum macropodum Boiss. from Iran.

The hydrodistilled essential oils from flower, leaf and stem of Chaerophyllum macropodum Boiss. were analyzed by GC and GC/MS. The flower oil was characterized by high amounts of myristicin (42.5%) and trans-beta-ocimene (41.0%). In the leaf oil eighteen constituents, representing 99.3% of the total, were identified of which trans-beta-ocimene (24.9%), myristicin (15.7%), terpinolene (14.5%), fenchyl acetate (13.9%), cis-beta-ocimene (6.3%) and sabinene (6.1%) were major components. The main components of the stem oil were trans-beta-ocimene (54.2%), myristicin (22.4%) and sabinene (8.9%). Antibacterial activities of the flower, leaf and stem oils were evaluated using the micro-dilution broth method. Inhibitory effects on Escherichia coli and Salmonella typhi were recorded.