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Comparison of the 1O2 quenching rate constants for lycopene and β-carotene in a range of environments.
| kq/109 dm3 mol−1 s−1 | |||||
|---|---|---|---|---|---|
| Carotenoid | DPPC Liposomes [39] | Micelles [36] | Benzene [36] | Ethanol:Chloroform:Water 50:50:1 [37] | |
| * | † | ||||
| Lycopene | 2.4 | 2.3 | 2.0 | 17.0 | 31.0 |
| β-Carotene | 2.3 | 2.5 | 2.4 | 13.0 | 14.0 |
* = Water soluble 1O2-generation by rose Bengal; † = Lipid soluble 1O2-generation by 4-(1-pyrene)butyric acid; DPPC: dipalmitoyl phosphatidylcholine.
