Comparison of the Structures and Antioxidant Activity of the Major Compounds of Lippia multiflora Mold (Verbenaceae) Leaves Essential Oils Collected in Center of Côte d'Ivoire
Philatryho ATCHE *
Laboratoire des Procédés Industriels de Synthèse, de l'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d'Ivoire.
Brahima SOUMAHORO
Laboratoire des Procédés Industriels de Synthèse, de l'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d'Ivoire.
Ferdinand Sibiri SANOU
Laboratoire des Procédés Industriels de Synthèse, de l'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d'Ivoire.
Amian Brise Benjamin KASSI
Laboratoire de Constitution et Réaction de la Matière (LCRM), Université Félix HOUPHOUËT-BOIGNY, 01 BP 582 Abidjan 01, Côte d'Ivoire.
Yaya SORO
Laboratoire des Procédés Industriels de Synthèse, de l'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d'Ivoire.
*Author to whom correspondence should be addressed.
Abstract
The growing interest in natural antioxidants is motivated by the harmful effects of the use of synthetic antioxidants. Medicinal plants such as Lippia multiflora are being studied for their multiple biological potentials, in particular their ability to provide new sources of natural antioxidants. The aim of this study was to determine the chemical composition and assess the antioxidant activity of Lippia multiflora essential oils from five (5) localities in Côte d'Ivoire. The essential oils were extracted by steam stripping and analyzed by gas chromatography-mass spectrometry (GC-MS) to determine their chemical composition. Their antioxidant activity was assessed using DPPH and ABTS tests.The analyses revealed that the major compounds in the essential oils from Yamoussoukro, Tiébissou, Bouaflé, Toumodi and Dimbokro were α-phellandrene, Eucalyptol (1,8-cineole), Linalool, β-citral (Neral), trans-geraniol, α-citral (Geranial), Germacrene D and (±)-trans-nerolidol, respectively. The best antioxidant activities for the DPPH and ABTS tests were obtained for Dimbokro and Toumodi essential oils respectively. These results suggest that Lippia multiflora essential oils have significant biological potential and could be used as an alternative to synthetic antioxidants, with possible applications in the agri-food and pharmaceutical industries.
Keywords: Essential oils, Lippia multiflora, antioxidant activity, major chemical compounds