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Isocontour plots of the high-performance liquid chromatography electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) chromatograms of the anthocyanin fractions of aronia not from concentrate (NFC) (a), pomegranate NFC (c), and red grape JC (e), as well as the copigment fractions of aronia NFC (b), pomegranate NFC (d), and red grape JC (f) monitored from λ 200 to 600 nm. Peak identification is given in Table 1.
