Chemical extraction via bisulphite adducts
of carbonyl compounds from essential oils
I.W. Ouédraogo, S. Sassiémiké, Y.L. Bonzi-Coulibaly*
Laboratoire de Chimie Organique : Structure et Réactivité
03 BP 7021 Ouagadougou 03, Burkina Faso, Tél. (226) 50 30 70 64 p. 5034, Fax (226) 50 30 72 42
Chemistry Department, UFR-SEA, University of Ouagadougou.
* Corresponding author. E-mail: firstname.lastname@example.org
Received: 11 November 2008; revised version accepted: 18 February 2009
In this study, carbonyl compounds present in five commercial essential oils are investigated by chemical extraction via bisulphite adducts. Cymbopogon citratus, Eucalyptus citriodora and Lippia multiflora essential oils were submitted to this simple extraction method to isolate with satisfactory yields, carbonyl compounds while low yields are observed in the case of Cymbopogon nardus and Mentha piperita. The chemical composition of the crude essential oil and the corresponding carbonyl compounds extract were subsequently studied by GC–MS.
Keywords: Essential oils; carbonyl compounds; bisulphite adduct; extraction.