Chemical Composition, Antiradical and anti-inflammatory activities of four annonaceae from Benin

Abstract

The chemical composition of the essential oils obtained by hydrodistillation from fresh leaves of four Annonaceae: Annona muricata, Annona squamosa, Monodora myristica and Xylopia aethiopica growing wild in Benin were analyzed by GC and GC/MS. Twenty four compounds were identified and quantified in the essential oil of Annona muricata with isocaryophyllene (20.2%); -caryophyllene (16.1%); cadinene (11.4%), elemene (8.9%); muurolene (6.9%) as major components. Twenty nine compounds were identified and quantified in the essential oil of Annona squamosa which contained isocaryophyllene (24.9%), camphene (10.2%), caryophyllene (2.6%), epi-cadinol + epimuurolol (9.2%) as prominent components. Essential oil of Monodora myristica screened contained twenty four components identified and quantified with phellandrene (65.5%), pinene (6.2%) as main compounds.Thirty three compounds were identified and quantified in the essential oils of Xylopia aethiopica, the major compounds being p-cymène (16.0%), sabinene (12.6%), terpinen-4-ol (11.3%),elemene (10.6%) and pinene (7.1%). The antiradical and anti-inflammatory activities of these oils were found to be low.