Collins, S, York, DW orcid.org/0000-0003-4778-3607, Kazmi, S et al. (1 more author) (2020) Formation of wax walled microcapsules via double emulsion using cross membrane emulsification at elevated temperatures. Journal of Food Engineering, 269. ARTN: 109739. ISSN 0260-8774
Abstract
A novel micro encapsulation process has been developed via a double emulsion of water in oil in water, whereby the oil is molten during the process and is then solidified to form a solid wall afterwards. This has the potential for an improved encapsulation technique for hydrophilic components. A range of materials was used, including hexadecane, lanolin and cetyl palminate. Temperature controlled, cross membrane emulsification was used to ensure a narrow size distribution. Calculations of permeability, based on the leakage of fluorescein solutions, indicated a much higher rate that would be expected from such a hydrophobic, crystalline wall. Faster cooling gave rise to higher permeability. These suggest that pores are forming in thin walls during the solidification process and indicate the importance of process conditions on wall formation. Osmotic pressure differences are also a potential contributor.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Elsevier Ltd. This is an author produced version of a paper published in Journal of Food Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Double emulsions; Wax; Microcapsule; Permeability; Cross membrane emulsification; Flavour |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Sep 2019 10:35 |
Last Modified: | 29 Oct 2019 12:19 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jfoodeng.2019.109739 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:151280 |
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Filename: Collins et al Wax double emulsion Sep2019 author accepted.pdf
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