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ATMOSPHERIC FREEZE-DRYING. 1. DESIGN, EXPERIMENTAL INVESTIGATION AND ENERGY-SAVING ADVANTAGES. 2. MODELLING DRYING KINETICS USING ADSORPTION ISOTHERMS.

Author(s) : WOLFE E., GIBERT H.

Type of article: Article

Summary

AN EXPERIMENTAL STUDY OF A FLUIDIZED-BED FREEZE-DRIER SHOWED IT TO BE FEASIBLE. THE DRYING KINETICS WERE DETERMINED IN THE CASE OF POTATO SLICES. THIS PROCESS IS LONGER THAN VACUUM FREEZE-DRYING, BUT ENERGY SAVINGS ARE ABOUT 35 %. A MODEL WAS SET UP TO TEST HEAT AND MASS TRANSFERS. THIS FREEZE-DRYING PROCESS IS MAINLY APPLIED TO SMALL PRODUCTS, AT A TEMPERATURE APPROXIMATING THE MELTING POINT. (Bibliogr. int. CDIUPA, FR., 91-273567 AND 273568.

Details

  • Original title: ATMOSPHERIC FREEZE-DRYING. 1. DESIGN, EXPERIMENTAL INVESTIGATION AND ENERGY-SAVING ADVANTAGES. 2. MODELLING DRYING KINETICS USING ADSORPTION ISOTHERMS.
  • Record ID : 1992-1941
  • Languages: English
  • Source: Drying Technol. - vol. 8 - n. 2
  • Publication date: 1990

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