NDLI: Choline and Ethanolamine Decompose Lipid Hydroperoxides into Hydroxyl Lipids

Content Provider	Springer Nature Link
Author	Pan, Xiangqing Irwin, Anthony J. Leonard, Michael Welsby, David
Copyright Year	2010
Abstract	Analysis of lipid hydroperoxides and hydroxyl lipids in food and biological systems has historically been difficult due to the instability and diversity of these compounds as well as the complexity of the associated purification and derivatization processes. A rapid, high throughput and robust method based on mass spectrometry using multiple reaction monitoring mode of LC–ESI–MS/MS has been developed for the simultaneous quantitative analysis of fatty acid hydroperoxides and hydroxyl fatty acids without purification or derivatization. The method has been used to demonstrate that functional groups of phospholipids, choline and ethanolamine, are capable of decomposing lipid hydroperoxides into their corresponding hydroxyl lipids. In model systems where choline and ethanolamine were added, the amounts of lipid hydroperoxide isomers decreased while the amounts of hydroxyl lipids increased. In similar model systems containing normal food antioxidants such as tocopherols and butylated hydroxytoluene, and in the control without antioxidants, the amounts of lipid hydroperoxide and hydroxyl lipids did not change significantly under current experimental conditions. Data also demonstrated that phospholipids have a much lower hydroperoxide decomposition ability than choline and ethanolamine, and that the antioxidant activity of phospholipids is probably due to the ability of choline, ethanolamine and other amines from phospholipid degradation to convert primary oxidation products to the corresponding hydroxyl lipids.
Starting Page	1235
Ending Page	1245
Page Count	11
File Format	PDF
ISSN	0003021X
Journal	Journal of the American Oil Chemists' Society
Volume Number	87
Issue Number	11
e-ISSN	15589331
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-07-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lipid oxidation Lipid hydroperoxide Hydroxyl lipids Tandem mass spectrometry LC–ESI–MS/MS Phospholipids Choline Ethanolamine Biotechnology Food Science Agriculture Biomaterials Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Chemical Engineering

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