Antibacterial activity and chemical composition of the essential oil of Ammi visnaga L. (Apiaceae) from Constantine, Algeria

Abstract

The essential oil of fresh aerial part of Ammi visnaga L. (Apiaceae), obtained by hydrodistillation, in a Cl e- venger-type apparatus, was GC/MS analyzed. Twenty one compounds were characterized representing 97.3% of the e s- sential with isobutyl isobutyrate (14.0 %), linalool (12.1%), 2,2-dimethylbutanoic acid (30.1%), thymol (6.0%), bornyl acetate (7.3%) and croweacin (12.2%) as the major components. The essential oil exhibited the best antibacterial activity against Escherichia coli, Pseudomonas aeruginosaand Klebsiella pneumoniaestrains.