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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

CAMANO, Jairo A.; RIVERA, Ana M.  e  ZAPATA, José E.. Effect of film thickness and location of the sample inside a direct solar dryer on the drying kinetics of viscera silage of red tilapia. Inf. tecnol. [online]. 2020, vol.31, n.1, pp.53-66. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642020000100053.

Drying behavior of chemical silage of red tilapia viscera (Oreochromis sp) was evaluated, in a direct solar dryer, as a function of the location of the sample inside the dryer and of the thickness of the film sample. The experimental conditions were selected according to bromatological and microbiological criteria and kinetic parameters such as the effective diffusivity coefficient (Def). After that, the drying kinetics was modelled using six empirical models and one phenomenological model. The results showed that samples with 2.40mm of thickness have better behavior during drying achieving moisture content of less than 12% in the dried product in zones closer to the air exit, which in turn gave higher Def. The Page model provided the best fiiting of the data, with higher values of the correlation coefficient and lower deviations compared to experimental data. It is concluded that he location of the sample inside the dryer and the film thickness, significantly affect the characteristics of the product obtained.

Palavras-chave : chemical silage; Oreochromis sp; direct solar drying; drying kinetics..

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