ATMOSPHERIC FREEZE-DRYING PART 1 : DESIGN,EXPERIMENTAL INVESTIGATION AND ENERGY-SAVING ADVANTAGES |
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| Authors: | E. Wolff H. Gibert |
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| Affiliation: | I.N.R.A. Laboratoire de Génie des Procédés Biotechnologiques Agro-Alimentaires, I.N.A.P.G. , THIVERVAL GRIGNON, F 78850 |
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| Abstract: | This paper describes the experimental study of a new process for freeze-drying based on a fluidized bed of dry adsorbent working at atmospheric pressure. Process feasibility has been demonstrated. The kinetics of dehydration have been established systematically for thin-sliced potatoes. A comparison has been carried out with vacuum freeze-drying. Processing time is longer than under vacuum freeze-drying, but energy savings of 35% can be expected from a continuous duty facility. |
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| Keywords: | Freeze-drying Atmospheric pressure Fluidisation Adsorption Technology Kinetic Energy cost |
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