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Información tecnológica

On-line version ISSN 0718-0764

Abstract

VEGA, Antonio A  and  LEMUS, Roberto A. Modeling of Drying Kinetic of Chilean Papaya (Vasconcellea pubescens). Inf. tecnol. [online]. 2006, vol.17, n.3, pp.23-31. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642006000300005.

The kinetics of hot air drying of chilean papaya (Vasconcellea pubescens) was studied and modeled at different temperatures (40, 50, 60, 70 & 80º C) and air velocity of 2.0 ± 0.2 m·s-1. The induction, constant, and fallingrate periods were observed during the experimentation. The mathematical models of Newton, Henderson-Pabis and Page  were applied. Also evaluated were the quality of fit to the models using the coefficient of linear regression, the sum square error, the root mean square error and the Chisquare test. The kinetic parameters of each model showed the usual dependence on temperature, and were evaluated using the Arrhenius equation. In comparing experimental data with calculated values, it was demonstrated that the Page model attained the best fit for every drying curve, representing an excellent tool for the estimation of the drying time of this product.

Keywords : chilean papaya; Vasconcellea pubescens; drying rate; drying kinetics.

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