Juice processing and storing
The fruits were carefully washed with tap water, cut into halves
and juiced with a juice extractor. To avoid undesirable enzymatic
browning during the processing, 0.1% of ascorbic acid was added to
the fruit juices. Then the samples were filtered through a 4-layer
cheese cloth and poured into beakers containing clouding agent.
Each of the treatments was added to the cloudy apple juice at three
levels similar to those recommended for drink products as shown
in Table 1. All the treatments were added to cloudy juices and
vigorously agitated with magnetic stirrer at room temperature
achieving complete dissolution. Control was the same batch, but without any additives. The treated and the control samples were
packaged in 100 ml glass bottles which were sterilized at 100 C for
10 min. The juice and the control were stored at two temperatures
4 C (refrigerator) and 25 C (room temperature) for 14 days and
samples were taken out at intervals to be assayed