weight reduction than 20% weight reduction. Ketelaars,
Jomaa, Puigalli, and Coumans (1992) found the shrinkage during
drying is attributed to moisture removal and stresses developed
during drying.
The shrinkage results also showed that the shrinkage was
affected by the ascorbic and citric acid dip. Statistical analysis
results indicated that acid dip ( p < 0.05) had a significant effect
on the shrinkage of the final product. There was a dramatic
decrease in thickness shrinkage for acid dipped slices compared
to undipped samples. For example, the thickness shrinkage
decreased from 23.1% of undipped sample to 8.3% of
dipped samples with 20% weight reduction. The extent of
the change in the thickness of banana slices by the dipping
treatment exhibited a considerable variation in literatures.
Demirel and Turhan (2003) found that Cavendish slices shrank
47% during air drying but dipping did not affect the shrinkage
during drying.