Anthocyanin Degradation Of Blueberry-Aronia Nectar In Glass Compared With Carton During Storage

Blueberries and aronia berries are a rich source of anthocyanins, but these degrade during storage and the filling of glass bottles by the hot-fill process, at a rate related to the oxygen permeability of the packaging, the type of anthocyanidin, and the quantity of glycosylated sugar present. This study found anthocyanin degradation in blueberry-aronia nectar to be 22% higher in Tetrapak cartons than in glass bottles. Anthocyanin stability with respect to aglycone decreased from cyanidin, through peonidin and petunidin, to malvidin and delphinidin. Anthocyanin stability with respect to glycosylated sugars decreased from glucose, through galactose to arabinose.