Studies on Anthocyanin Pigments in Fruits Harvested in Japan

Part II. On anthocyanin pigments in Delaware grapes(red color type)

Abstract

Anthocyanins isolated from Delaware grapes, an American variety, were studied by paper chromatography, hydrolysis, spectroscopy and other techniques. The major anthocyanins were identified as peonidin-3, 5-diglucoside(8%), cyanidin-3-monoglucoside(40%), peonidin-3-monogluco-side(20%)and peonidin-3-(p-coumaroyl)-monoglucoside(32%).