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Title:

Water Vapor Pathways during Freeze-Drying of Foamed Product Matrices Stabilized by Maltodextrin at Different Concentrations

Document type:
Zeitschriftenaufsatz
Author(s):
Kubbutat, Peter; Tauchnitz, Annika; Kulozik, Ulrich
Abstract:
This study aimed to identify the water-vapor transport mechanisms through an aerated matrix during microwave freeze-drying. Due to the larger surface area and lower water vapor transport resistance of an aerated product compared to the solution, foam structures dry faster. Different foam structures were produced with different maltodextrin (MD) concentrations (10--40%) as a foam-stabilizing agent. Depending on the initial viscosity of the solution prior to foaming, the samples differed in overru...     »
Keywords:
channel formation; cracks; Foam drying; Freeze-drying; Maltodextrin; process acceleration
Journal title:
Processes
Year:
2020
Journal volume:
8
Journal issue:
11
Pages contribution:
1463
Fulltext / DOI:
doi:10.3390/pr8111463
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