3.2. Ascorbic acid
Results of our present study showed asignificantincrease
(P < 0.05)in ascorbic acid in the samples sonicated for 60 and
90 min compared to samples sonicated for 30 min and control
(non-sonicated)sample (Table 2). The results are in agreement
with the observations of sonicated kasturi lime juice [4]. The in-
crease in ascorbic acid of apple juice could be directly attributed
to the sonication in which no heat is supplied and further it re-
moves the dissolved oxygen in juice due to cavitations [21]. There-
fore, sonicatio n is found to be effective in processing of apple juice
with increased level of ascorbic acid.