Chemical Composition of the Essential Oils Extracted from Two Annonaceae Required in Beninese Pharmacopeia

Abstract

The aromatic vegetable secretions obtained by hydrodistillation from the leaves and fruit of Xylopia aethiopica and Annona senegalensis were studied by GC / MS. Different chemical compositions marked by significant proportions of some compounds are obtained. The main components of the essential oil of X. aethiopica are: b-pinene (8,5-46,1%), sabinene (9,8-41,8%), 1,8- cinéole (5,3-23,8%), a-thujene (5,3-12,6%), a-pinene (5,3%), g-terpinene (6,2%), trans-pinocarvéol (6,6-12,2%), cis-sabinol (6,7%), trans-verbénol (5,0%), pinocarvone (5,2%), terpinen-4-ol (9,2-30,8%), myrténol (9,1-13,7%), myrténal (7,4-17,1%), a-eudesmol (6,0%), élémol (5,1-11,9%) and vélérianol (7,7-10,6%). The essential oil of A. senegalensis contains mostly linalool (7,2-7,3%), (Z)-b-ocimene (6,0%), (E)-b-ocimene (6,6%), germacrene-D (6,5-14,2%), caryophyllene oxide (12,6%), intermédéol (6,5%), b-caryophyllene (5,3-8,8%), palmitic acid (6,6). The majority compounds constitutive of the two varieties of Annonaceae are not identical.