Abstract
The Steam Distilled Oil Of The Aerial Parts Of Conyza Incana Was Analysed By Gc/Ms. The Antimicrobial Activity Of The Oil Is Presented. 71 Compounds Accounting For About 86 % Of The Oil Constitution Could Be Identified. Sesquiterpene Hydrocarbons (37-38 %) and Sesquiterpenoids (22 %) Were The Major Groups In The Investigated Oil Of Which 8-Cadinene and Ledol Were The Most Prominent (7.9 and 5.5 % Respectively).
Many Constituents, Belonging To Other Different Chemical Groups, Viz Monoterpene Hydrocarbons (4 %), Monoterpenoids (9.91 %), Esters (6.0 %) and Miscellaneous Compounds (6.74 %) Were Also Identified. The Antimicrobial Screening Of The Oil Showed Significant Activity Against The Microorganisms S. Aureus, Pr. Vulgaris, B. Subtilis and C. Albicans.