Two anthocyanins were isolated from the highly pigmented callus derived fro
m the storage root of purple sweet potato (Ipomoea batatas L.) cultivar 'Ay
amurasaki'. One was identified as cyanidin 3-O-sophoroside-5-O-glucoside, a
nd the other as cyanidin 3-O-(2-O-(6-O-(E)-p-coumaroyl-beta-D-glucopyranosy
l)-beta-D-glucopyranoside)-5-O-beta-D-glucopyranoside, by chemical and spec
troscopic analysis. (C) 2000 Elsevier Science Ltd. All rights reserved.