Citrus flavonoid Yield [mg/g-dry sample] Yuzu peel Ponkan peel Yuzu leaves Naringin 2.9 - - Hesperidin 45.6 1.6 0.3 Neohesperidin 1.4 - 17.9 Phloretin -a - 0.2 Nobiretin - 3.8 - Tangeretin - 1.2 - aNot detected.

Table 1: Amount of citrus flavonoids extracted in water phase by DME extraction.