Moreover, Rawson et al. (2011) evaluated the effects of US (20 kHz,
24.4–61 μm, 25–45 °C, 0–10 min) on ascorbic acid degradation ofwatermelon
juice. These authors observed a significant increase in the
degradation of ascorbic acid (26%) from watermelon juice when
higher amplitude and longer treatment time were used, while US
at 20 kHz, 24.1 μm, 25 °C, 2 min, led to the lower ascorbic acid degradation
(6%).