Spray chilling

Encapsulation processes, 16 438-451 centrifugal extrusion, 16 449—450 in situ, 16 445 key feature of, 16 444 rotational suspension separation, 16 450 spray chilling, 16 448 spray-dry, 16 447—448 Encapsulation spinning, 16 26 Encapsulation technologies... 

Spray chambers, 26 688, 715 Spray chamber scrubbers, 26 713-714 Spray chilling, 11 550-551, 555 flavor encapsulation by, 11 540 Spray chilling encapsulation processes, 16 448... 

Spray chilling, Vegetable oil Frozen liquids, heat-... 

Spray chilling. It is a process of spray chilling the wall around an atomized core (13). The resulting capsules move countercurrent to a flow of tempered air and are collected in a large container below the spray nozzle. It is practiced currently by the Durkee Company. 

Savolainen, M., et al., Evaluation of controlled-release microparticles prepared by spray chilling, poster publication, AAPS Annual Meeting, 2002. 

Lamb, R. (1987). Spray chilling. Food, Flavourings, Ingredients, Packaging and Processing 9(12), 39,41,43. 

Spray chilled or powdered fats are specialized products developed for ease of incorporation, handling, melting efficiency, uniform delivery with addition systems, encapsulation, and other special-purpose uses. The spray chilling process consists of atomizing a molten fat in a crystallization zone or tower, maintained under temperature conditions where a very fine mist of the melted fat is contacted with cooled air or gas to cause crystallization without marked supercooling (106). 

Hard fats can be powdered or beaded without the aid of a carrier. Spray chilling in a tower or solidification on a chill roll followed by grinding and screening for... 

These few examples may demonstrate how differently flavours can be released, either at the point of processing the food or at the point of consumption. No single encapsulation method can satisfy all these different requirements. Hence methods other than spray drying, i.e. spray chilling, compacting, agglomerating and fluidised spray drying, as described below, have been developed. 

Process selection around a core material is dependent upon core material properties such as thermal stability, viscosity if it is a liquid, particle size and shape if it is a solid, density, reactivity, and solubility. Processes such as spray chilling or spray coating can expose core materials to elevated temperatures for longer periods of time, compared to spray drying, as the mixture remains heated as it awaits pumping to an atomization nozzle. Other processes, such as coextrusion or some emulsion processes, can be carried out at or below room temperature. For example, ionic gelation coupled with coextrusion can be used to encapsulate oils or biological materials at or below room temperature." Processes like solvent evaporation can be operated under vacuum to remove the matrix solvent rather than the use of temperature. ... 

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