2. Industrial and development techniques
Freeze-drying can be carried out using a variety of technologies. Sublimation can be carried out either by lowering the total pressure (vacuum freeze-drying), or by lowering the water vapor pressure in the direct vicinity of the product (freeze-drying with adsorbents at atmospheric pressure). The method for recovering the extracted water vapour then differs from case to case. A number of industrial techniques are also available to provide the heat required for dehydration.
2.1 Vacuum freeze-drying
A freeze-dryer typically comprises three components: a heating source, a steam trap and a vacuum pump. Generally speaking, the product to be freeze-dried is placed in trays. The trays are introduced into the freeze-drying chamber on superimposed rails. Two methods are...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Industrial and development techniques
Dehydration kinetics
Article included in this offer
"Food industry"
(
270 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
References
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
