Alginate and gelatine coatings at
different concentrations, plasticized with glycerol and
carboxymethylcellulose (CMC) plus sucroesters coatings
plasticized with mono/diglycerides were tested. The
effects of those coatings on the storage stability were
followed by measurements of peel and pulp firmness,
external L* a* and b* colour values, solid soluble content
and weight loss during storage at 20 C for three months.
The 2 wt% alginate and 5 wt% gelatine coatings
significantly reduced weight loss, thus maintaining fruit
firmness and thereby preserving fruit freshness. The
effects of those coatings also include the improvement of
appearance and imparted an attractive natural-looking
sheen to the fruit.