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Short Communication Open Access
Cymbopogon olivieri essential oil from aerial parts was analyzed by gas chromotography and gas chromatographyâ??mass spectrometry and led to the identification of 38 compounds. Piperitone (72.8%), 4â??carene (11.8%) and βâ??himachalene (7.6%) were found as the major components of the oil. The antimicrobial activity was achieved using discâ??diffusion and microbroth dilution assays and microbicidal kinetics of oil was screened against different microorganisms. The possible antioxidant activity of oil was evaluated by diphenylpicrylhydrazyl freeâ??radical scavenging system. The oil had excellent antimicrobial activity against Bacillus cereus, Staphylococcus epidermidis and Streptococcus pneumoniae. The oil exhibited inhibitory effect against Bacillus subtilis and fungi. Dvalues of oil were 12.5, 10 and 2.4 min for Escherichia coli, Staphylococcus aureus and Candida albicans, respectively. The IC50 value of Cymbopogon olivieri oil was 35 mg/ml and its antioxidant activity was lower than that of butylated hydroxytoluene. Cymbopogon olivieri oil possesses compounds with antimicrobial properties that can be used as antimicrobial agents.
Antimicrobial activity, antioxidant activity, Cymbopogon olivieri, diphenylpicrylhydrazyl, piperitone