Many previous studies have demonstrated the deleterious effect of ascorbic acid on the anthocyanins and therefore on the juice colour ( Garzón and Wrolstad, 2002, Lopes et al., 2007 and Sun et al., 2011). The initial H∗ values of the three samples (CAE, CAE + R, CAE + AA) are similar to those showed by solutions of elderberry purified extracts (cyanidin 3-glucoside) at pH 3.5, and lower than the blackberry ones (cyanidin 3-glucoside) at pH 3.5 ( Stintzing, Stintzing, Carle, Frei, & Wrolstad, 2002) and strawberry juices (pelargonidin 3-glucoside) at pH 3.4 ( Garzón & Wrolstad, 2002).