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Anthocyanins from fractions with different aglycones and PACN formation after 24 h of 45 °C incubation with caffeic acid (CA). Chromatograms show the max plot in the 475–520 nm range. Table shows the wavelength of maximum absorption in the visible range (λvis-max), mass-per-charge ratio (m/z) of the main ion and its aglycone, and tentative identity (ID).
