Pentadin

Pentadin, a sweet-tasting protein, was discovered and isolated in 1989, in the fruit of Oubli (Pentadiplandra brazzeana Baillon), a climbing shrub growing in some tropical countries of Africa.

The fruit has been consumed by the apes and the natives for a long time. The berries of the plant were incredibly sweet African locals call them "j'oublie" (French for "I forget") because their taste helps nursing infants forget their mothers' milk.