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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Fu, Li-Min Wang, Hui-Jing Liang, Ran Skibsted, Leif H. Han, Rui-Min Zhang, Jian-Ping |
| Copyright Year | 2014 |
| Abstract | Giant unilamellar vesicles of soy phosphatidylcholine are found to undergo budding when sensitized with chlorophyll a ([phosphatidylcholine] : [chlorophyll a] = 1500 : 1) under light irradiation (400–440 nm, 16 mW mm−2). ‘Entropy’ as a dimensionless image heterogeneity measurement is found to increase linearly with time during an initial budding process. For β-carotene addition ([phosphatidylcholine] : [β-carotene] = 500 : 1), a lag phase of 23 s is observed, followed by a budding process at an initial rate lowered by a factor of 3.8, whereas resveratrol ([phosphatidylcholine] : [resveratrol] = 500 : 1) has little if any protective effect against budding. However, resveratrol, when combined with β-carotene, is found to further reduce the initial budding rate by a total factor of 4.7, exhibiting synergistic antioxidation effects. It is also interesting that β-carotene alone determines the lag phase for the initiation of budding, while resveratrol supports β-carotene in reducing the rate of the budding process following the lag phase; however, it alone has no observable effect on the lag phase. Resveratrol is suggested to regenerate β-carotene following its sacrificial protection of unsaturated lipids from oxidative stress, modeling the synergistic effects in cell membranes by combinations of dietary antioxidants. |
| Starting Page | 1573 |
| Ending Page | 1578 |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 20426496 |
| Volume Number | 5 |
| Issue Number | 7 |
| Journal | Food & Function |
| DOI | 10.1039/c4fo00225c |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Soybean oil Phosphatidylcholine Chlorophyll Entropy Beta-Carotene Resveratrol Oxidative stress |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Food Science |
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