Practical scale modification of oleogels by ultrasonic standing waves

Lipid-based materials, such as substitutes for saturated fats (oleogels) structurally modified with ultrasonic standing waves (USW), have been developed by our group. To enable their potential application in food products, pharmaceuticals, and cosmetics, practical and economical production methods a...

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Main Authors: Petri Lassila, Fabio Valoppi, Oskari Tommiska, Jere Hyvönen, Axi Holmström, Sami Hietala, Ari Salmi, Edward Haeggström
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Ultrasonics Sonochemistry
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1350417722000633
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author Petri Lassila
Fabio Valoppi
Oskari Tommiska
Jere Hyvönen
Axi Holmström
Sami Hietala
Ari Salmi
Edward Haeggström
author_facet Petri Lassila
Fabio Valoppi
Oskari Tommiska
Jere Hyvönen
Axi Holmström
Sami Hietala
Ari Salmi
Edward Haeggström
author_sort Petri Lassila
collection DOAJ
description Lipid-based materials, such as substitutes for saturated fats (oleogels) structurally modified with ultrasonic standing waves (USW), have been developed by our group. To enable their potential application in food products, pharmaceuticals, and cosmetics, practical and economical production methods are needed. Here, we report scale-up of our procedure of structurally modifying oleogels via the use of USW by a factor of 200 compared to our previous microfluidic chamber. To this end, we compared three different USW chamber prototypes through finite element simulations (FEM) and experimental work. Imaging of the internal structure of USW-treated oleogels was used as feedback for successful development of chambers, i.e., the formation of band-like structures was the guiding factor in chamber development. We then studied the bulk mechanical properties by a uniaxial compression test of the sonicated oleogels obtained with the most promising USW chamber, and sampled local mechanical properties using scanning acoustic microscopy. The results were interpreted using a hyperelastic foam model. The stability of the sonicated oleogels was compared to control samples using automated image analysis oil-release tests. This work enabled the effective mechanical-structural manipulation of oleogels in volumes of 10–100 mL, thus paving the way for USW treatments of large-scale lipid-based materials.
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spelling doaj.art-a3e3a8dd116e46d8a5a1c7e3b97a4da02022-12-21T23:28:57ZengElsevierUltrasonics Sonochemistry1350-41772022-04-0185105970Practical scale modification of oleogels by ultrasonic standing wavesPetri Lassila0Fabio Valoppi1Oskari Tommiska2Jere Hyvönen3Axi Holmström4Sami Hietala5Ari Salmi6Edward Haeggström7Electronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandElectronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, Finland; Department of Food and Nutrition, University of Helsinki, P.O. Box 66 (Agnes Sjöbergin katu 2), FI-00014, Finland; Helsinki Institute of Sustainability Science, Faculty of Agriculture and Forestry, University of Helsinki, FI-00014, Finland; Corresponding author at: Electronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, Finland.Electronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandElectronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandElectronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandDepartment of Chemistry, University of Helsinki, P.O. Box 55 (Virtasen aukio 1), FI-00014, FinlandElectronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandElectronics Research Laboratory, Department of Physics, University of Helsinki, P.O. Box 64 (Gustaf Hällströmin katu 2), FI-00014, FinlandLipid-based materials, such as substitutes for saturated fats (oleogels) structurally modified with ultrasonic standing waves (USW), have been developed by our group. To enable their potential application in food products, pharmaceuticals, and cosmetics, practical and economical production methods are needed. Here, we report scale-up of our procedure of structurally modifying oleogels via the use of USW by a factor of 200 compared to our previous microfluidic chamber. To this end, we compared three different USW chamber prototypes through finite element simulations (FEM) and experimental work. Imaging of the internal structure of USW-treated oleogels was used as feedback for successful development of chambers, i.e., the formation of band-like structures was the guiding factor in chamber development. We then studied the bulk mechanical properties by a uniaxial compression test of the sonicated oleogels obtained with the most promising USW chamber, and sampled local mechanical properties using scanning acoustic microscopy. The results were interpreted using a hyperelastic foam model. The stability of the sonicated oleogels was compared to control samples using automated image analysis oil-release tests. This work enabled the effective mechanical-structural manipulation of oleogels in volumes of 10–100 mL, thus paving the way for USW treatments of large-scale lipid-based materials.http://www.sciencedirect.com/science/article/pii/S1350417722000633OleogelsUltrasonic standing wavesTreatment chamber design and developmentMechanical propertiesHyperelastic foamOil release
spellingShingle Petri Lassila
Fabio Valoppi
Oskari Tommiska
Jere Hyvönen
Axi Holmström
Sami Hietala
Ari Salmi
Edward Haeggström
Practical scale modification of oleogels by ultrasonic standing waves
Ultrasonics Sonochemistry
Oleogels
Ultrasonic standing waves
Treatment chamber design and development
Mechanical properties
Hyperelastic foam
Oil release
title Practical scale modification of oleogels by ultrasonic standing waves
title_full Practical scale modification of oleogels by ultrasonic standing waves
title_fullStr Practical scale modification of oleogels by ultrasonic standing waves
title_full_unstemmed Practical scale modification of oleogels by ultrasonic standing waves
title_short Practical scale modification of oleogels by ultrasonic standing waves
title_sort practical scale modification of oleogels by ultrasonic standing waves
topic Oleogels
Ultrasonic standing waves
Treatment chamber design and development
Mechanical properties
Hyperelastic foam
Oil release
url http://www.sciencedirect.com/science/article/pii/S1350417722000633
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