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

Figure 1. Separation and identification of polyphenolic compounds in DAPP crude AB powder.

Figure 1

Extracted ion chromatograms of some identified polyphenolic compounds in AB powder using accurate mass measurement; (A). Extracted ion chromatograms of quercetin glycosides and dihydrochalcone (B) and their related mass spectra (C): quercetin 3-O-glucoside, m/z 463.0905 (1A); quercetin 3-O-galactoside, m/z 463.09018 (1B); quercetin 3-O-arabinoside, m/z 433.07914 (1C); quercetin 3-O-xyloside, m/z 447.07977 (1D); quercetin 3-O- rhamnoside, m/z 447.09506 (1E); and phloridzin, m/z 435.13171 (1F) obtained with negative ion electrospray ionisation. These polyphenols are provided from a mixture of 250 µg of crude extract DAPP in 1 mL Optima grade water.