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. 2020 May 18;6(5):e03845. doi: 10.1016/j.heliyon.2020.e03845

Figure 2.

Figure 2

A: Representative UHPLC total ion chromatogram of procyanidins of DP1-DP3 detected in wild bilberry (V. meridionale S.) pomace at 280 nm. (1) catechin; (2) B-type dimer; (3) epicatechin; (4) A-type trimer; (5) A-type dimer. B: Extracted ion chromatograms of procyanidin trimers. Peaks 1 and 4 are B-type isomers; peaks 2, 3, 5, 6, and 7 are A-type isomers. C: Extracted ion chromatograms of procyanidin tetramers. Peaks 1, 2, 5, 6, 9, 10, 11, 12, and 13 are A-type isomers; peaks 3, 4, 7, and 8 are B-type isomers.