| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dewettinck, Koen
Ghent University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Insights in the structural hierarchy of statically crystallized palm oilcitations
- 2024Insights in the structural hierarchy of statically crystallized palm oilcitations
- 2024Unravelling the hierarchical structure of saturated monoacid triglycerides during crystallization : a comprehensive time-resolved X-ray scattering studycitations
- 2024Influencing chocolate gloss inhomogeneities by the choice of surface-active substance and contact materialcitations
- 2024From nucleation to fat crystal network : effects of stearic-palmitic sucrose ester on static crystallization of palm oilcitations
- 2024Interactions between mono- and triglycerides in hybrid fat blends : from static to dynamic processing
- 2023Accurate evaluation of the flow properties of molten chocolate : circumventing artefactscitations
- 2023Chocolate tempering in a rheometer : monitoring rheological properties during and after crystallization of cocoa buttercitations
- 2023Carnauba wax and beeswax as structuring agents for water-in-oleogel emulsions without added emulsifierscitations
- 2023Effect of temperature during production and storage of monoglyceride oleogels
- 2022Microstructure development in semi-liquid shortenings upon storage
- 2022Microstructure development in semi-liquid shortenings upon storage
- 2021Combining fat and waxes in hybrid systems for bakery application
- 2020The effect of cooling on crystallization and physico-chemical properties of puff pastry shortening made of palm oil and anhydrous milk fat blendscitations
- 2020Fat crystallization of blends of palm oil and anhydrous milk fat : a comparison between static and dynamic-crystallizationcitations
- 2018The potential of waxes to alter the microstructural properties of emulsion-templated oleogelscitations
- 2017Oil structuring properties of monoglycerides and phytosterols mixturescitations
- 2017Sequential crystallization of high and low melting waxes to improve oil structuring in wax-based oleogelscitations
- 2017Sequential crystallization of high and low melting waxes to improve oil structuring in wax-based oleogelscitations
- 2016Functionality of inulin and polydextrose as sucrose replacers in sugar-free dark chocolate manufacture : effect of fat content and bulk mixture concentration on rheological, mechanical and melting propertiescitations
- 2015Fumed silica-based organogels and 'aqueous-organic' bigelscitations
- 2015Rheological characterization of gel-in-oil-in-gel type structured emulsionscitations
- 2014Optimisation of processing conditions and rheological properties using Stephan mixer as conche in small-scale chocolate processingcitations
- 2010On the fractional crystallization of palm olein:Solid solutions and eutectic solidificationcitations
- 2009Influence of shear flow on polymorphic behavior and microstructural development during palm oil crystallizationcitations
Places of action
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article
Insights in the structural hierarchy of statically crystallized palm oil
Abstract
Palm oil (PO) is still widely used for the production of all types of food products. Due to its triacylglycerol (TG) composition, PO is semisolid at ambient temperature, offering possibilities for many applications. In order to tailor the fat crystal network for certain applications, it remains imperative to understand the structural build-up of the fat crystal network at the full-length scale and to understand the effect of processing conditions. In this study, PO was crystallized under four temperature protocols (fast (FC) or slow (SC) cooling to 20 °C or 25 °C) and was followed for one hour of isothermal time. A broad toolbox was used to fundamentally unravel the structural build-up of the fat crystal network at different length scales. Wide-angle and small-angle X-ray scattering (WAXS and SAXS) showed transitions from α-2L to β’-2L over time. Despite the presence of the same polymorphic form (β’), chain length structure (2L), and domain size, ultra-small-angle X-ray scattering (USAXS) showed clear differences in the mesoscale. For all samples, the lamellar organization was confirmed. Both cooling speed and isothermal temperature were found to affect the size of the crystal nanoplatelets (CNPs), where the highest cooling speed and lowest isothermal temperature (FC and 20 °C) created the smallest CNPs. The microstructure was visualized with polarized light microscopy (PLM) and cryo-scanning electron microscopy (cryo-SEM), showing clear differences in crystallite size, clustering, and network morphology. Raman spectroscopy was applied to confirm differences in triglyceride distribution in the fat crystal network. This study shows that both cooling rate and isothermal temperature affect the fat crystal network formed, especially at the meso- and microscale.