The soursop comes from the soursop, in Brazil, and generally in the medical world is called graviola Soursop is green from the outside with a supplanted skin of sorts of quills From the inside, it is a white pulp containing black seeds Soursop is a fruit with a very pleasant taste, slightly sweet and can be eaten like a fruit. Soursop has always been used by the people of the Caribbean islands, South America and Africa for medical purposes.