Povey, MJW orcid.org/0000-0002-9740-2596 (2014) Crystal nucleation in food colloids. Food Hydrocolloids, 42 (1). pp. 118-129. ISSN 0268-005X
Abstract
Crystal nucleation in food colloids is considered in the light of recent developments in classical nucleation theory (CNT); it is shown that CNT remains a sound basis upon which to understand nucleation in colloids and in particular nucleation in lipids such as triacylglycerols. Computation of the energy barrier to nucleation for a studied triacylglycerol system (Cocoa butter oil-in-water emulsion) indicates that whilst homogeneous nucleation is unlikely at higher surface energies the addition of surfactant, lowering the interfacial energy may have a dramatic impact on surface nucleation rates. Data is included supporting this contention. The impact of reducing the size of colloidal particles to the point where the interfacial region occupies a significant proportion of the total volume of the dispersed phase is discussed and it is suggested that in these circumstances undercooling may fall significantly in comparison with the undercooling measured in micrometre emulsions.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | (c) 2014 Elsevier Ltd. All rights reserved. This is an author produced version of a paper published in Food Hydrocolloids. Uploaded in accordance with the publisher's self-archiving policy |
Keywords: | Crystal; nanoparticle; colloid; emulsion; ultrasound; sound speed |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) > FSN Colloids and Food Processing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Oct 2015 11:37 |
Last Modified: | 26 Oct 2020 15:41 |
Published Version: | http://dx.doi.org/10.1016/j.foodhyd.2014.01.016 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.foodhyd.2014.01.016 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89609 |