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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.[1]

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.[2]

Pentadin, with brazzein[3] discovered in 1994, are the 2 sweet-tasting proteins discovered in this African fruit.

Pentadin molecular weight estimated to be 12kDa.

It is reported to be 500 times sweeter than sucrose on a weight basis, with its sweetness having a slow onset and decline similar to monellin and thaumatin. However, pentadin's sweetness profile is closer to monellin than to thaumatin.[4]

See also[edit]