Chemical analysis, antioxidant and antimicrobial activities of leaves essential oil of Annona senegalensis pers. from Burkina Faso

Zénabou Semdé; Jean Koudou; Gilles Figueredo; Cheikna Zongo; Marius K Somda; Hagrétou Sawadogo Lingani; Alfred S Traoré

Authors

Zénabou Semdé Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN), Université Ouaga I JKZ, 03 BP7021 Ouagadougou 03. Institut de Recherche en Sciences Appliquées et Technologies (IRSAT/CNRST), 03 BP7047 Ouagadougou 03.
Jean Koudou Ecole Doctorale Pluridisciplinaire, Université Aube Nouvelle (U-AUBEN), 06 BP9283 Ouagadougou06, Burkina Faso. CERPHAMETA, Université de Bangui, BP908 Bangui, République Centrafricaine.
Gilles Figueredo Laboratoire d’Analyse des Extraits Végétaux (LEXVA Analytique), 63360 Saint-Beauzire, France.
Cheikna Zongo Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN), Université Ouaga I JKZ, 03 BP7021 Ouagadougou 03.
Marius K Somda Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN), Université Ouaga I JKZ, 03 BP7021 Ouagadougou 03.
Hagrétou Sawadogo Lingani Institut de Recherche en Sciences Appliquées et Technologies (IRSAT/CNRST), 03 BP7047 Ouagadougou 03.
Alfred S Traoré Centre de Recherche en Sciences Biologiques Alimentaires et Nutritionnelles (CRSBAN), Université Ouaga I JKZ, 03 BP7021 Ouagadougou 03.

Keywords:

Annona senegalenlis, essential oil, DPPH, FRAP, disk diffusion, broth microdilution

Abstract

The aim of this study was to determine the chemical composition, antioxidant and antimicrobial properties of leaves essential oil of Annona senegalensis from Burkina Faso. Essential oil was obtained by hydrodistillation and analyzed by GC and GC/MS. Antioxidant activity of the essential oil was evaluated by DPPH radical scavenging assay and FRAP test and antimicrobial activity by disk diffusion method and microdilution method. Caryophyllene oxide (32.565%), humulen-1, 2-epoxide (5.85%), spathulenol (3.62%), linalool (2.525%), β-caryophyllene (2.446%) and δ-cadinene (2.012%) were the major compounds of A. senegalensis essential oil. The oil showed good radical scavenging power and moderate reducing power compared with quercetin, ascorbic acid and BHT. Essential oil of A. sengalensis exhibited high to weak antibacterial activity with inhibition diameters ranging from 08±00mm to 15.5±0.71mm and MIC value of 4% to 8%; MBCs were higher than the highest concentration tested. The oil inhibited all fungal strains with inhibition diameters between 10.5±0.71mm and 13.5±0.71mm, MIC value of 0.125% and 4% with MFC of 1% and 8%.

Plants with radical antioxidant capacity are useful for medicinal applications and as food additive. Hence the essential oil of Annona senegalensis leaves could be a potential antioxidant and antimicrobial agent.