Physico-chemical and sensory quality of juice from
purple passion fruit under different storage temperature and
time were assessed. The maximum loss in fruit weight was
recorded under room temperature (25±1°C) followed by at
11±1°C. There was an increase in juice percentage up to 9 and
13 days under room temperature and storage at 11±1°C
respectively. The optimum flavour in juice was up to 5 days at
25±1°C and up to 21 days at 8±1°C. A significant reduction
in sourness was recorded on 5th day under all treatments and
the scores for sourness became almost constant after 17 days.
The maximum increase in the mean scores of sweetness on
5th day was observed at 25±1°C followed by at 11±1°C. The
optimum level of juice sweetness was maintained up to
21 days at 8±1°C. Total soluble solids content increased in
initial stage followed by reduction. There was a reduction in
the titrable acidity up to 21 days at 8±1°C. A decreasing trend
in the reducing and non-reducing sugar of passion fruit was
observed under all the treatments. Fruits stored at 25±1°C,
developed off-flavour in juice after 5 days, while storage at 8±
1°C produced no off-flavor even up to 21 days. Fruits can be
stored for 5 days only at 25±1°C as the overall sensory quality
of juice reduced significantly afterwards, while juice maintained
the optimum overall quality up to 21 days at 8±1°C.