Use of High‐Intensity Ultrasound to Change the Physical Properties of Oleogels and Emulsion Gels

The objective of this work was to evaluate the effect of high‐intensity ultrasound (HIU) on the physical properties of a soft oleogel (2% of candelilla wax, 2% of monoacylglycerol, and 2% of hardfat) and of water‐in‐oil (W/O) emulsion gels (EG) with various amounts of water (0%, 5%, and 25%). Physic...

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Bibliographic Details
Published in:Journal of the American Oil Chemists' Society 2019-06, Vol.96 (6), p.681-691
Main Authors: da Silva, Thais Lomonaco Teodoro, Arellano, Daniel Barrera, Martini, Silvana
Format: Article
Language:English
Subjects:
Candelilla wax
Emulsion gels
Hardfats
High‐intensity ultrasound
Monoacylglycerol
Oleogels
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Summary:The objective of this work was to evaluate the effect of high‐intensity ultrasound (HIU) on the physical properties of a soft oleogel (2% of candelilla wax, 2% of monoacylglycerol, and 2% of hardfat) and of water‐in‐oil (W/O) emulsion gels (EG) with various amounts of water (0%, 5%, and 25%). Physical properties of these systems such as thermoresistance, microstructure, melting profile, hardness, rheology, and oil loss were measured. When HIU was applied to the oleogel for 3 min using a 3.2 mm‐diameter tip at an amplitude of vibration of 216 μm, a reduction in crystal size and crystal area (P 
ISSN:0003-021X
1558-9331
DOI:10.1002/aocs.12215