Response surface methodology was applied in
this study to optimize the gellan and alginate-based
edible coating formulations for fresh-cut pineapples.
Second-order polynomial regression models were
obtained for predicting the effects of sodium alginate,
gellan gum and glycerol contents on weight loss,
firmness and respiration rate of coated fresh-cut
pineapples. All models were fitted significantly (p
< 0.05) with R2
> 0.90. The lack of fit for response
variables in this study, was not significant (p >0.05).
It shows the accuracy of proposed models is sufficient
to evaluate the variability of responses. The optimum
formulation predicted for alginate-based edible