Fig. 1: Chromatograms for FRP.

a 280 nm chromatogram showing phenolic acids and PACs (GA = gallic acid, C = catechin, EC = epicatechin, P2 = proanthocyanidin dimer); b 370 nm chromatogram showing lack of flavanols; c Extracted ion chromatogram for catechin/epicatechin, m/z = 291, [M+H]+; d Extracted ion chromatogram for proanthocyanidin (PAC) dimers (P2), m/z = 579, [M+H]+.