Oxidative stability of sunflower oil bodies

Fisk, Ian D.; White, Daniel A.; Lad, Mitaben; Gray, David A.

Abstract

This study investigates the oxidative stability of sunflower oil body suspensions (10 wt-% lipid). Two washed suspensions of oil bodies were evaluated over 8 days at three temperatures (5, 25 and 45 °C) against three comparable sunflower oil emulsions stabilized with dodecyltrimethylammonium bromide (DTAB), polyoxyethylene-sorbitan monolaurate (Tween 20) and sodium dodecyl sulfate (SDS) (17 mM). The development of oxidation was monitored by measuring the presence of lipid hydroperoxides and the formation of hexanal. Lipid hydroperoxide concentrations in the DTAB, SDS and Tween 20 emulsions were consistently higher than in the oil body suspensions; furthermore, hexanal formation was not detected in the oil body emulsions, whereas hexanal was present in the headspace of the formulated emulsions. The reasons for the extended resistance to oxidation of the oil body suspensions are hypothesized to be due to the presence of residual seed proteins in the continuous phase and the presence of a strongly stabilized lipid-water interface. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

• Journal Article Type: Conference Paper
• Acceptance Date: Apr 29, 2008
• Online Publication Date: Aug 19, 2008
• Publication Date: Oct 1, 2008
• Deposit Date: Aug 10, 2021
• Publicly Available Date: Aug 10, 2021
• Journal: European Journal of Lipid Science and Technology
• Print ISSN: 1438-7697
• Electronic ISSN: 1438-9312
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 110
• Issue: 10
• Pages: 962-968
• DOI: https://doi.org/10.1002/ejlt.200800051
• Public URL: https://nottingham-repository.worktribe.com/output/3125848
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/ejlt.200800051
• Additional Information: This is the peer reviewed version of the following article: Fisk, I.D., White, D.A., Lad, M. and Gray, D.A. (2008), Oxidative stability of sunflower oil bodies. Eur. J. Lipid Sci. Technol., 110: 962-968, which has been published in final form athttps://doi.org/10.1002/ejlt.200800051. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.