Abstract
The anthocyanin pigments of black-purple grapes, ‘Campbell Early’, ‘Ishihara Wase’, ‘Kyoho’, ‘Kokuho’and‘Takao’were examined by thin-layer chromatography. Nineteen anthocyanins were identified in these grapes. The aglycones were delphinidin, petunidin, cyanidin, malvidin and peonidin. All varieties contained monoglucosides and diglucosides, characteristic of hybrids of V. vinifera and V. labrusca. ‘Kyoho’(‘Ishihara Wase’בCentennial’) contained five aglycones. ‘Campbell Early’ and ‘Ishihara Wase’ (‘Campbell Early’ 4X) lacked malvidin. Cyanidin was not detected in ‘Kokuho’ and ‘Takao’, which are progeny of ‘Kyoho’.
