Due to the application of ultrasound for 10 or 20 min, the colour of carrot slices was changed slightly (Table 3). However, extension of the treatment to 30 min was associated with significant differences, regardless of the ultrasound frequency.
Due to the application of ultrasoundfor 10 or 20 min, the colour of carrot slices was changedslightly (Table 3). However, extension of the treatment to 30 minwas associated with significant differences, regardless of the ultrasoundfrequency.