Fig. 1
The HPLC chromatograms of reference (a) and sample solution (b) at 280 nm. Peaks 1 ~ 8: (1) chlorogenic acid; (2) procyanidin B2; (3) ideain; (4) (−)-epicatechin; (5) cyanidin 3-arabinoside; (6) hyperoside; (7) isoquercitrin; (8) procyanidin C1