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SOME THEORETICAL AND EXPERIMENTAL CONSIDERATIONS ON THE THIN-LAYER DRYING OF FISH CRACKERS: PRODUCT EXPANSION ASSESSMENT

 

作者: MauricioB. F. Teixeira,   Saloshi Tobinaga,   FibioT. Misawa,  

 

期刊: Drying Technology  (Taylor Available online 2000)
卷期: Volume 18, issue 1-2  

页码: 1-19

 

ISSN:0737-3937

 

年代: 2000

 

DOI:10.1080/07373930008917690

 

出版商: Taylor & Francis Group

 

关键词: convection;diffusion;drying;fish crackers;physical properties;Simplex-Lattice Design.

 

数据来源: Taylor

 

摘要:

Fish crackers are semi-prepared starch-based products which must be expanded just prior to consumption. This work aims at the experimental and theoretical study of the thin-layer drying process of fish crackers in a thin disc geometry. The process was carried out in an insulated cabinet dryer and the experimental kinetic drying data were fitted using the analytical solutions resulting from both a drying model governed by the Fick' s second law and a model based on the lumped system, highlighting the adequacy of each of them. Therefore, it was possible to calculate the mass transfer coefficients for seven different blends offish crackers. Also, the effect of the drying time on the bulk density of the puffed product was evaluated for these seven blends. Both the kinetic drying parameters and the optimal bulk density responses were analyzed using the Simplex-Lattice Design over a mixture triangle within a minimal number of experiments.

 

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