Graviola Leaf Source & Identity
The species is Annona muricata L., an evergreen tree of the custard-apple family, known as soursop, graviola and guanabana. The part used is the dried leaf. The fruit, which is sold separately as soursop powder, the seeds and the bark are not used here, and each carries a different constituent profile from the leaf. Other Annona species, such as custard apple (Annona reticulata), share the family and a similar look but are different plants and are not substituted. Leaves of the family are known for acetogenins, a class of waxy fatty-acid derivatives, together with alkaloids and flavonoid glycosides. A water extract keeps mainly the polar share of these families, which sets it apart from a solvent-made acetogenin concentrate.












