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. 2013 Jan 23;8(1):e53725. doi: 10.1371/journal.pone.0053725

Figure 2. Separation and identification of polyphenolic compounds in DAPP purified JC-047 fraction.

Figure 2

Extracted ion chromatograms of some identified polyphenolic compounds in JC-047 using accurate mass measurement (A). Extracted ion chromatograms of catechin, epicatechin and trimeric flavan-3-ol oligomers C1 to C4 (B) and their related mass spectra (C): (+)-catechin, m/z 289.07541 (1A) and (-)-epicatechin, m/z 289.07659 (1B) and that trimeric flavan-3-ol oligomers C1 to C4 (2A to 2D) obtained with negative ion electrospray ionisation. These polyphenols provided of a mixture of 250 µg of purified fraction DAPP in 1 mL Optima grade water.