Impact of Association Colloids on Lipid Oxidation in Triacylglycerols and Fatty Acid Ethyl Esters
| Autor: | Leqi Cui, Eric A. Decker, David Julian McClements, Rika Homma, Karin Suzuki |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Antioxidant
Iron medicine.medical_treatment Metal Lipid peroxidation chemistry.chemical_compound Fish Oils Dietary Fats Unsaturated Drug Stability Lipid oxidation medicine Plant Oils Organic chemistry Ethyl oleate Colloids Triglycerides chemistry.chemical_classification Chromatography Fatty Acids digestive oral and skin physiology Fatty acid Esters General Chemistry Fish oil chemistry Critical micelle concentration visual_art visual_art.visual_art_medium lipids (amino acids peptides and proteins) Lipid Peroxidation General Agricultural and Biological Sciences Oxidation-Reduction Copper |
| Zdroj: | Journal of Agricultural and Food Chemistry. 63:10161-10169 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/acs.jafc.5b03807 |
| Popis: | The impact of association colloids on lipid oxidation in triacylglycerols and fatty acid ethyl esters was investigated. Association colloids did not affect lipid oxidation of high oleic safflower and high linoleic safflower triacylglycerols, but were prooxidative in fish triacylglycerols. Association colloids retarded aldehyde formation in stripped ethyl oleate, linoleate, and fish oil ethyl esters. Interfacial tension revealed that lipid hydroperoxides were surface active in the presence of the surfactants found in association colloids. The lipid hydroperoxides from ethyl esters were less surface active than triacylglycerol hydroperoxides. Stripping decreased iron and copper concentrations in all oils, but more so in fatty acid ethyl esters. The combination of lower hydroperoxide surface activity and low metal concentrations could explain why association colloids inhibited lipid oxidation in fatty acid ethyl esters. This research suggests that association colloids could be used as an antioxidant technology in fatty acid ethyl esters. |
| Databáze: | OpenAIRE |
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