Title: Development of a rheological method to characterize palm oil crystallizing under shear
Authors: De Graef, Veerle ×
Goderis, Bart
Van Puyvelde, Peter
Foubert, Imogen
Dewettinck, Koen #
Issue Date: 2008
Publisher: Wiley-v c h verlag gmbh
Series Title: European journal of lipid science and technology vol:110 issue:6 pages:521-529
Abstract: To follow palm oil crystallization under shear, a new rheological method was developed. This method can be split up into two parts: In the first part, continuous shear is applied for a pre-defined period and crystallization is monitored by measuring the apparent viscosity as a function of isothermal time under shear. In the second part, shear is halted and oscillation is applied during 30 s, thus recording moduli and phase angle. These moduli and phase angle are then characteristic of a sample crystallized under shear during this pre-defined period. After repeating this procedure for increasing shearing periods in the first part, complex modulus and phase angle were plotted as a function of isothermal time under shear. The thus obtained results were compared with crystallization data obtained via time-resolved X-ray diffraction and polarized light microscopy.
ISSN: 1438-7697
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Soft Matter, Rheology and Technology Section
Microbial and Molecular Systems, Campus Kulak Kortrijk
Interdisciplinary Research Facility Life Sciences, Campus Kulak Kortrijk
Polymer Chemistry and Materials
× corresponding author
# (joint) last author

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