Structuring Edible Oils With Fumed Silica Particles

Organogels are often made from solutions of proteins, polymers or fatty acids in oil. The macromolecular species crystallize, or assemble, into mesh structures that inhibit oil flow. This review focuses on using fumed silica nanoparticles as an alternative structuring agent. Fumed silica particles h...

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Main Author: Catherine P. Whitby
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Sustainable Food Systems
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fsufs.2020.585160/full
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author Catherine P. Whitby
Catherine P. Whitby
author_facet Catherine P. Whitby
Catherine P. Whitby
author_sort Catherine P. Whitby
collection DOAJ
description Organogels are often made from solutions of proteins, polymers or fatty acids in oil. The macromolecular species crystallize, or assemble, into mesh structures that inhibit oil flow. This review focuses on using fumed silica nanoparticles as an alternative structuring agent. Fumed silica particles have a unique, branched morphology that means the particles aggregate into three-dimensional, interconnected networks. Two key aspects for formulating edible oleogels are addressed. Advances in our understanding of fumed silica particle aggregation in oil that point toward strategies for tuning the rheological properties of oleogels are examined. Secondly, the factors likely to affect the lipolysis of oils structured used fumed silica particles, and hence the bioavailability of ingredients loaded into the gels, are discussed. The next challenge for these promising materials is to target suitable applications for their use as fat replacement in foods.
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spelling doaj.art-f322079d1ce74e3eac688dada92107122022-12-21T22:45:28ZengFrontiers Media S.A.Frontiers in Sustainable Food Systems2571-581X2020-10-01410.3389/fsufs.2020.585160585160Structuring Edible Oils With Fumed Silica ParticlesCatherine P. Whitby0Catherine P. Whitby1School of Fundamental Sciences, Massey University, Palmerston North, New ZealandMacDiarmid Institute for Advanced Material and Nanotechnology, Victoria University of Wellington, Wellington, New ZealandOrganogels are often made from solutions of proteins, polymers or fatty acids in oil. The macromolecular species crystallize, or assemble, into mesh structures that inhibit oil flow. This review focuses on using fumed silica nanoparticles as an alternative structuring agent. Fumed silica particles have a unique, branched morphology that means the particles aggregate into three-dimensional, interconnected networks. Two key aspects for formulating edible oleogels are addressed. Advances in our understanding of fumed silica particle aggregation in oil that point toward strategies for tuning the rheological properties of oleogels are examined. Secondly, the factors likely to affect the lipolysis of oils structured used fumed silica particles, and hence the bioavailability of ingredients loaded into the gels, are discussed. The next challenge for these promising materials is to target suitable applications for their use as fat replacement in foods.https://www.frontiersin.org/articles/10.3389/fsufs.2020.585160/fullfumed silica aggregationfumed silica gel rheologyoleogelsilica-lipid hybridfused silica
spellingShingle Catherine P. Whitby
Catherine P. Whitby
Structuring Edible Oils With Fumed Silica Particles
Frontiers in Sustainable Food Systems
fumed silica aggregation
fumed silica gel rheology
oleogel
silica-lipid hybrid
fused silica
title Structuring Edible Oils With Fumed Silica Particles
title_full Structuring Edible Oils With Fumed Silica Particles
title_fullStr Structuring Edible Oils With Fumed Silica Particles
title_full_unstemmed Structuring Edible Oils With Fumed Silica Particles
title_short Structuring Edible Oils With Fumed Silica Particles
title_sort structuring edible oils with fumed silica particles
topic fumed silica aggregation
fumed silica gel rheology
oleogel
silica-lipid hybrid
fused silica
url https://www.frontiersin.org/articles/10.3389/fsufs.2020.585160/full
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