Methods and Mathematical Models for the Drying of Polymeric Beads

  • Amos Nussinovitch


Water-soluble polymer beads can be dried for a variety of purposes (described in full in Chapter 6). In general, after drying, the texture is porous. In many cases, the bead is capable of retaining its integrity even after immersion in water for long periods. In addition, and in contrast to wet gel beads, porosity facilitates the liberation of gases during fermentation without harming the dried bead’s integrity. This chapter covers methods for drying polymeric beads, including air-drying, fluidized-bed and microwave-assisted fluidized-bed drying, and freeze-drying, and freeze-dried biological products are fully described. Sections also include drying of dosage forms made of drug dispersed in a polymer, mathematical and numerical models to analyze the drying, and a discussion of special cases such as drying a polymer bead with shrinkage.


Rhodococcus Erythropolis Ethylene Vinyl Acetate Ethylene Vinyl Acetate Spherical Bead Ethylene Vinyl Acetate Copolymer 
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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Institute of Biochemistry, Food Science and Human Nutrition, The Robert H. Smith Faculty of Agriculture, Food and EnvironmentThe Hebrew University of JerusalemRehovotIsrael

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