juice pH determines the acid content
of fruit juice and attributes to the juice quality. Juice pH
showed the inconsistence during storage. All the fruit
coatings significantly effected the change in juice pH.
Juice pH increased in all the fruits up to 60 days of storage
except fruits coated with Carboxymethyl cellulose @
0.25% where this increase was registered up to 67 days of
storage after that a decline was recorded (Fig. 2). An
increase in juice pH indicates the decline in juice acidity
with storage and a decline in pH at the end of storage
showed an increase in acidity. An increase in juice pH
with the advancement of storage period could be attributed
to use of organic acids in the respiratory process and due
to the hydrolysis of starch in to sugars. A slow increase in
juice pH in coated fruits as compared to control fruits
might be due to low respiration rate in coated fruits. At the
end of storage fruits coated with Carboxymethyl cellulose
@ 0.25% maintained the higher juice pH as compared to
other treatments. Decline in juice pH at the end of storage
might be due the increase in acid content of juice due to
the fermentation which indicates the deterioration of fruit
quality. Total sugars of the fruit directly influence the
consumer acceptability. The coatings affected the