Fig. 1.
Changes in lightness (L∗), hue angle (H∗) and chroma (C∗) of plum model juices elaborated with concentrated anthocyanin extract (♦), concentrated anthocyanin extract plus ascorbic acid (□) and concentrated anthocyanin extract plus rutin (△) during 17 weeks of storage in darkness at 20 °C. Bars represent the standard deviations.