Chemical composition and antimicrobial properties of different basil essential oils chemotypes from Togo
2009
Koba, Koffi | Poutouli, P.W. | Raynaud, Christine | Chaumont, Jean-Pierre | Sanda, Komla
The aerial parts essential oils of Ocimum basilicum (Lamiaceae) from Togo were steam-distilled and investigated for their percentage composition (GC and GC/MS) and in vitro antimicrobial activities. Five oil chemotypes were identified and classified as follows in line with their principal components: estragole type; linalool/estragole type; methyleugenol type; methyleugenol/t-anethole type; t-anethole type. The in vitro microbiological experiments revealed that only the methyleugenol and methyleugenol/t-anethole chemotypes were active against tested fungi and bacteria. Their minimum inhibitory concentrations (MIC) ranged from 80-150 mu L/L and from 200-500 mu L/L respectively. Likewise, on tested bacteria the MIC varied from 200-400 mu L/L and from 250-500 mu L/L respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic drugs.
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