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Updated: Jul 20, 2026

A Package of Established Analytical Tools to Investigate the Solid-State Alteration of Lipid-Based Excipients
Published on: August 9, 2022
Relationship between crystallization behavior, microstructure, and macroscopic properties in trans containing and
Imogen Foubert1, Jeroen Vereecken, Kevin W Smith
1Laboratory of Food Technology and Engineering and BIOMATH, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000 Gent, Belgium. imogen.foubert@UGent.be
Abstract:
The objective of this study is to gain further understanding into the relationship between crystallization behavior, microstructure, and macroscopic properties in coating fats. The isothermal crystallization behavior of two coating fats (one trans containing and one trans free) was examined, both as pure fats and in coatings, by DSC and microscopy. Furthermore, the hardness of the samples was examined after cooling in a water bath at two different temperatures and at three different storage times. Both fats seemed to show an alpha-mediated beta' crystallization at lower temperatures and a direct beta' crystallization at higher temperatures. The trans free coating fat clearly crystallized faster and in smaller crystals. The hardness was governed not only by the amount of solid fat present in the network but also by the structure of this network. The coating matrix components seem to have a pronounced influence on the microstructure and thus on the macroscopic properties.
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