HPTLC patterns of samples after exposure of the plate at visible light and derivatization with DPPH solution. Standard flavonoids are run in parallel.

Q1 = Quercetin-3-O-glu   S3 = G-IF-S-16

K = Kaempferol-3-O-glu  S4 = G-AF-SS-16

S1 = G-IF-S-15     S5 = U-IF-S-15

S2 = G-AF-S-15     S6 = U-AF-SS-15

S7 = U-AF-SS-16     Hy = Hyperoside

S8 = B-AF-SS-17     EC = Epicatechin

S9 = G-AF-SS-18     CA = Caftaric acid