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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Chen, Bingcan Laguerre, Michaël McClements, David Julian Decker, Eric Andrew Han, Ashley |
| Copyright Year | 2011 |
| Abstract | Phospholipids self-assemble in bulk oils to form structures such as reverse micelles that can alter the microenvironment where chemical degradation reactions occur, such as lipid oxidation. In this study, we examined the influence of phospholipid reverse micelles on the activity of non-polar (α-tocopherol) and polar (Trolox) antioxidants in stripped soybean oil (SSO). Reverse micelles were formed by adding 1000 μM 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) to SSO. The addition of DOPC reverse micelles had a prooxidant effect, shortening the lag phase of SSO at 55 °C. DOPC improved the activity of low α-tocopherol or Trolox concentrations (10 μM) but decreased the activity of high concentrations (100 μM). Hydrophilic Trolox had better antioxidant activity than hydrophobic α-tocopherol. Fluorescence steady state and lifetime decay studies suggests that differences in the antioxidant activity of Trolox and α-tocopherol could be due to differences in their physical location in DOPC reverse micelles. These results will improve our understanding and control of lipid oxidation in bulk oils. |
| Starting Page | 302 |
| Ending Page | 309 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 20426496 |
| Volume Number | 2 |
| Issue Number | 6 |
| Journal | Food & Function |
| DOI | 10.1039/c1fo10046g |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | SSO DOPC Hydrophilic Trolox Micelle Lipid peroxidation Phospholipid Alpha-Tocopherol Trolox Soybean oil Phosphocholine Antioxidant Hydrophobe |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Food Science |
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