Oxidative stability of Echium plantagineum seed oil bodies

Gray, David A.; Payne, Gareth; McClements, David Julian; Decker, Eric A.; Lad, Mita

Abstract

Echium plantagineum seed contains a highly polyunsaturated oil (approximately 14% linoleic acid, 10% γ-linolenic acid, 33% α-linolenic acid and 14% stearidonic acid); almost half of the fatty acids are omega-3 fatty acids, so there is an interest in the possible health benefits of this oil, which, once extracted, is prone to oxidation. For the first time in reported literature, oil bodies (OBs), the organelles that store the oil in mature seed, were recovered from E. plantagineum seeds. The oxidative stability of these organelles ex vivo, dispersed in an aqueous continuous phase, was tested against processed E. plantagineum oil emulsions stabilised with either SDS or Tween 20. For both primary and secondary oxidation products the OBs were the most stable form of dispersed oil, and the dispersed systems were all more stable than bulk E. plantagineum oil after incubating at 40°C for 7 days. The possible reasons for the enhanced chemical stability of E. plantagineum OBs are explored in this paper. Practical applications: OBs, the natural store of oil in oilseeds, can be recovered from seeds intact and are relatively stable to oxidation ex vivo. Echium seed OBs, enriched in physiologically active omega-3 fatty acids, therefore offer an attractive alternative to traditional oil extraction methods and overcome the need to encapsulate the omega-3 rich oil. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Gray, D. A., Payne, G., McClements, D. J., Decker, E. A., & Lad, M. (2010). Oxidative stability of Echium plantagineum seed oil bodies. European Journal of Lipid Science and Technology, 112(7), 741-749. https://doi.org/10.1002/ejlt.200900280

• Journal Article Type: Article
• Acceptance Date: Apr 14, 2010
• Online Publication Date: May 3, 2010
• Publication Date: Jul 14, 2010
• Deposit Date: Mar 3, 2025
• Journal: European Journal of Lipid Science and Technology
• Print ISSN: 1438-7697
• Electronic ISSN: 1438-9312
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 112
• Issue: 7
• Pages: 741-749
• DOI: https://doi.org/10.1002/ejlt.200900280
• Public URL: https://nottingham-repository.worktribe.com/output/3152729
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/ejlt.200900280