Composition and antimicrobial activity of cymbopogon giganteus (Hochst.) chiov. essential flower, leaf and stem oils from Cameroon / Leopold Jirovetz in The journal of essential oil research, Vol. 19 N°5 (Septembre/Octobre 2007)  

Composition and antimicrobial activity of cymbopogon giganteus (Hochst.) chiov. essential flower, leaf and stem oils from Cameroon [texte imprimé] / Leopold Jirovetz, Auteur ; Gerhard Buchbauer, Auteur ; Gernot Eller, Auteur . - 2007 . - pp. 485-489.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 19 N°5 (Septembre/Octobre 2007) . - pp. 485-489

Mots-clés :	Cymbopogon giganteus Poaceae Essential oil compositions Cis-p-mentha-1(7),8-dien-2-ol Trans-p-mentha-1(7),8-dien-2-ol Trans-p-mentha-2,8-dien-1-ol Antimicrobial activity
Résumé :	The essential oils of fresh flowers (2 samples), leaves and stems of Cymbopogon giganteus (Hochst.) Chiovenda from Cameroon were investigated by GC and GC/MS. More than 55 components have been identified in the samples 1 (flowers 1), 2 (leaves), 3 (stems) and 4 (flowers 2) with main compounds possessing the p-menthadiene skeleton as follows: cis-p-mentha-1(7),8-dien-2-ol (1: 22.8%, 2: 27.7%, 3: 29.1%, 4: 20.5%), trans-p-mentha-1(7),8-dien-2-ol (1: 24.9%, 2: 21.6%, 3: 28.1%, 4: 26.5%), trans-p-mentha-2,8-dien-1-ol (1: 17.3%, 2: 22.1%, 3: 21.4%, 4: 16.3%) and cis-p-mentha-2,8-dien-1-ol (1: 8.3%, 2: 5.4%, 3: 4.6%, 4: 9.7%). Additional components in higher concentrations, responsible for the characteristic aroma impressions of these samples are especially limonene, trans-verbenol and carvone as well as some other mono- and sesquiterpenes. Antimicrobial activities of the four oils were found against Gram-(+)- and Gram-(-)-bacteria as well as the yeast Candida albicans, and these results were discussed with the compositions of each sample.
ISSN :	1041-2905
En ligne :	http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699959#.UXEWxkqC5mM