Conn P F, Lambert C, Land E J, Schalch W, Truscott T G
Department of Chemistry, Keele University, Staffs, UK.
Free Radic Res Commun. 1992;16(6):401-8. doi: 10.3109/10715769209049190.
All-trans beta-carotene radical anion efficiently transfers an electron to oxygen but the reverse reaction is not observed and, instead we suggest the formation of a beta-carotene-superoxide radical addition complex. On the other hand, all-trans lycopene undergoes a reversible electron transfer with the superoxide radical. This distinctive behaviour may be related to the anti-cancer properties of these molecules.
全反式β-胡萝卜素自由基阴离子能有效地将一个电子转移给氧，但未观察到逆反应，相反，我们认为形成了β-胡萝卜素-超氧自由基加成复合物。另一方面，全反式番茄红素与超氧自由基发生可逆的电子转移。这种独特的行为可能与这些分子的抗癌特性有关。
