1. Introduction
Apple (Malus domestica ), belonging to the family Rosaceae,is
one of the most nutritious and popular among all the fruits.Apples
and apple juices are rich source of such compounds with high anti-
oxidant capacity like phenolic acids,flavonoidsand flavonols.
These compounds may play an important role to protect our body
from many diseases namely coronary disease, immune system
damage, asthma,and diabetes originating from oxidative stresses
[1,2].
With increase in scientific evidences and knowledge,consumers
are now seeking delicious, convenient,nutritiou s and safe food
products having natural taste and freshness.It is well established
that traditional thermal techniques can extend the shelf life of food
products and ensure their safety,but they cause loss in nutritional
and physicochemi cal parameters [3]. In order to overcome the
problems, there is adire need to introduce innovative and novel
technologie s that can successfu lly be used to extend shelf life,en-
sure safety, improve quality and consumer perception without any
adverse effect and damage to the nutrients.Sonication is such an
innovative and non-therm al technique which can achieve the goal
with confidence.It not only avoids losses from the product but also
improves the ultimate nutritional quality of product and reduces