Full Length Research Paper

Volatile constituents, antioxidant and antibacterial properties of Daniella Klainei Pierre ex A. Chev. essential oil

Jean Koudou¹*, Louis-Clément Obame^2,3, Prosper Edou³, Ismael Bassolé², François Eba³, Gilles Figueredo⁴, Alfred S. Traore² and Jean-Claude Chalchat⁵

¹Laboratoire de chimie des substances naturelles, Faculté des Sciences, BP908

Université de Bangui, Bangui République Centrafricaine.

²Centre de Recherche en Sciences Biologiques, Alimentaires et Nutritionnelles, Laboratoire de Microbiologie et de Biotechnologie, Université de Ouagadougou 03 BP7131 Ouagadougou Burkina Faso.

³Ecole Normale Supérieure, Laboratoire Pluridisciplinaire de Chimie, BP 7131 Libreville, Gabon.

⁴ LEXVA analytique, 460 rue du Montant, 63110 Beaumont, France.

⁵Laboratoire de chimie des hétérocycles et des glucides. Chimie des huiles essentielles, les Cezeaux, 63177 Aubière, France.

*Corresponding author. E-mail: jean_koudou@yahoo.fr. Tel/Fax: +226.50.36.81.46/+226.50.36.85.73

Accepted 4 July, 2008.

   Abstract

The water-distilled oil obtained from rhizomes of Daniella Klainei Pierre ex A.Chev (Caesalpiniaceae) from Gabon was examined by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The major constituent is myrcene (55.42%) along with α-pinene (5.39%), α-humulène (8.09%) and Germacrene-D (6.06%). The essential oil possessed antioxidant and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities and it displayed the inhibition of lipid peroxidation. A broth micro dilution method was used to test the oil against twelve strains of bacteria; it exhibited an antibacterial activity against some of the microorganisms.

Key words: Daniella Klainei, caesalpiniaceae, essential oil, antioxidant, antibacterial.