for the samples dried solely convectively was the highest of all
other performed drying tests. It proves that a long-lasting hot
air drying in a high temperature causes a meaningful color alteration. The results of E for the samples dried in intermittent
conditions are smaller than those dried at constant air temperature. Furthermore, the osmotic pretreatment resulted in better
quality preservation after intermittent drying. However, the best
quality cherries from the color point of view were obtained after application of ultrasound assisted osmotic dehydration. It means,
that ultrasonic assisted osmotic dehydration combined with drying
in stepwise changing air temperature retains valuable anthocyanins and preserves attractive color by about 46%.