dulcificum (=Richardella dulcifica)
Miracle Fruit; Miracle Berry; Sweet Berry
Miraculin, a protein contained in Miracle Berries, is used as a sweetening agent.
An evergreen shrub native to western Africa, berries of Synsepalum dulcificum contain a taste-modifying glycoprotein called miraculin that makes sour foods taste sweet. In 2008, miracle berries received a huge amount of press, associated with novel "flavor tripping" parties.