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

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Résumé

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
-pinene (5.39%),
-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.

Mots-clés

Daniella Klainei, caesalpiniaceae, essential oil, antioxidant