Percentages of co-pigmented, monomeric and polymeric anthocyanins are shown in Table 1. The raw cloudy pomegranate juice showed very similar amounts of the three anthocyanin forms (33.33%, approximately), while the raw clarified one exhibited a considerably reduced content of anthocyanins in their polymeric form (between 9.04% and 13.18%). In other word, the clarification process had a significant lowering effect on total anthocyanin content, especially in its polymeric form.
In the case of clarified pomegranate juice, LTP treatment decreased the percentage of co-pigmented (6.55%) and especially polymeric (8.98%) anthocyanin forms, increasing on the contrary the monomeric one (15.53%). The effect of HTP treatment was similar, a decrease of the co-pigmented (3.36%) and polymeric (8.12%) anthocyanins together with an increase of the monomeric forms (11.47%). When the juice samples were stored at 25 °C, an increase in the percentage of polymeric anthocyanins up to levels higher than 40.43% was observed at the end of storage period, irrespectively of the heat treatment applied. If juices were stored at 5 °C, then the levels of polymeric anthocyanins varied between 7.08% and 11.23%, minimizing changes on the percentages of the other forms.