Concerning to the effect of precooling, it could be observed that the treatments of cooling – citric acid combination were lower in firmness, total acidity, ascorbic acid and anthocyanin contents compared to uncooled treatments. Furthermore, pre- cooling treatments promoted decay in thawed berries. The pH value raised to reach 4.22 in thawed berries. Since the color and stability of anthocyanins are known to be influenced by pH. As pH increases, color fades. Higher pH will lead to the formation of the colorless carbinol pseudo-base and e subse- quent chalcone molecule which have a pale yellow color (Coultate, 2002). At pH 4–6, most anthocyanins appear color- less (Mazza and Miniati, 1993). Anthocyanin content reduced by about 12.6% in cooled prefreezing berries in contrast with frozen directly. However, these results are in general accor- dance with that obtained by Miguel et al. (2004) who found that anthocyanin content of Assaria variety of pomegranate decrease significantly during 72 h storage at 4 °C.