After 24 weeks all the anthocyanins had completely receded with the exception of a small amount of Cy-3-GR. It seems that Cy-3-S was the most stable during the first 8 weeks, after which it rapidly declined, whereas for Cy-3-GR this initial period is crucial and between 8 and 16 weeks the lowest losses were noticed (20.0% and 14.5% for 60US