CHEMICAL COMPOSITION AND ANTIMICROBIAL PROPERTIES OF DIFFERENT BASIL OILSAbstract
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; tanethole 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 μL/L and from 200-500 μL/L respectively. Likewise, on tested bacteria the MIC varied from 200-400 μL/L and from 250-500 μL/L respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic drugs.
H.C. Srivastava, Pankaj Shukla, Ajay Singh Maurya and Sonia Tripathi*
Department of Chemistry, Research lab, D.B.S. College (R.L.D.B.S.C.), Kanpur- 208 006, Uttar Pradesh, India
18 November, 2012
11 January, 2013
25 February, 2013
01 March, 2013