Torres, O, Mercado Tena, N, Murray, B orcid.org/0000-0002-6493-1547 et al. (1 more author) (2017) Novel starch based emulsion gels and emulsion microgel particles: Design, structure and rheology. Carbohydrate Polymers, 178. pp. 86-94. ISSN 0144-8617
Abstract
Novel starch-based emulsion microgel particles were designed using a facile top-down shear-induced approach. The emulsion droplets were stabilized using octenyl succinic anhydride (OSA) modified starch and incorporated into heat-treated and sheared native starch gels, forming emulsion gels. Using gelation kinetics and small deformation rheological measurements of sheared native starch gels and emulsion gels, OSA starch-stabilized emulsion droplets were demonstrated to act as “active fillers”. By varying native starch concentrations (15–20 wt%) and oil fractions (5–20 wt%), optimal concentrations for the formation of emulsion microgel particles were identified. Microscopy at various length scales (transmission confocal laser scanning and cryo-scanning electron microscopy) and static light scattering measurements revealed emulsion microgel particles of 5–50 μm diameter. These novel emulsion microgel particles created via careful combination of gelatinized native starch and OSA stabilised-emulsion droplets acting as active fillers may find applications in food and personal care industries for delivery of lipophillic molecules.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017, Elsevier Ltd. This is an author produced version of a paper published in Carbohydrate Polymers. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Emulsion microgel particle; native starch; OSA starch; encapsulation; rheology; active filler |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Sep 2017 09:37 |
Last Modified: | 11 Sep 2018 00:38 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.carbpol.2017.09.027 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121096 |