 Phlobaphens can be found in the kola nut (where they are called kola red), chocolate liquor (called cocoa red) or in the red skins or testa of the peanut.They are also reported in the fruits of the genus "Crataegus" ("Fructus Crataegi")or can be extracted from hop flowers.The chief constituent of kino is kinotannic acid, of which it contains 70 to 80 per cent.