Also Known As: Graviola, Annona muricata, Aluguntugui, Sorsaka, Corossol, Stafeli, Evo, Soursop
Soursop is the fruit of Annona muricata, a broadleaf, flowering, evergreen tree native to Mexico, Cuba,Central America, the Caribbean, and northern South America, primarily Colombia, Brazil, Peru, Ecuador, and Venezuela. Soursop is also produced in some parts of Africa, Southeast Asia and the Pacific. It is in the same genus as the chirimoya and the same family as the pawpaw.
The soursop is adapted to areas of high humidity and relatively warm winters; temperatures below 5 °C(41 °F) will cause damage to leaves and small branches, and temperatures below 3 °C (37 °F) can be fatal. The fruit becomes dry and is no longer good for concentrate.
Other common names include: "Coração de Boi" Mozambique, Evo (Ewe, Volta Region,Ghana),"Ekitafeeli", Uganda, "Stafeli" Swahili, Aluguntugui (Ga, Greater Accra Region, Ghana) guanábana(Spanish), graviola (Brazilian Portuguese, pronounced: [gɾɐviˈɔlɐ]), anona (European Portuguese), corossol(French),කටු අනෝදා (Sinhalese), sorsaka (Papiamento), adunu (Acholi), Brazilian pawpaw, guyabano,guanavana, toge-banreisi, durian benggala, durian belanda, nangka blanda, ทุเรียนเทศ [turi:jen te:k] (Thai),sirsak, zuurzak (Dutch), tomoko (Kiswahili) and nangka londa. In Malayalam, it is called മുള്ളാത്ത(mullaatha), literally thorny custard apple. The other lesser-known Indian names are shul-ram-fal andLakshmana Phala. and in Harar (Ethiopia) in Harari language known for centuries as Amba Shoukh (Thorny Mango or Thorny Fruit).
Laboratory and field research suggests that soursop may have potential for various applications.
The compound annonacin, which is contained in the seeds of soursop, is a neurotoxin associated with neurodegenerative disease, and research has suggested a connection between consumption of soursop and atypical forms of Parkinson's disease due to high concentrations of annonacin. In 2010 the Agence française de sécurité sanitaire des aliments called for further study on the risks of annonacin exposure for human health.
According to Cancer Research UK, "Many sites on the internet advertise and promote graviola capsules as a cancer cure, but none of them are supported by any reputable scientific cancer organisations" and "there is no evidence to show that graviola works as a cure for cancer" and consequently they do not support its use as a treatment for cancer.