From: Vitamin C in human health and disease is still a mystery? An overview
Chemical species | Reaction rate (M-1s-1) |
---|---|
Reactive oxygen species | Â |
Hydroxyl radical | 1.1 × 1010 |
Alkoxyl radical | 1.6 × 109 |
Peroxy radical | 1.2 × 106 |
Superoxide anion/ hydroperoxy radical | 1.0 × 105 |
Reactive nitrogen species | Â |
Dinitrogen trioxide/dinitrogen tetroxide | 1.2 × 109 |
Peroxynitrite/peroxynitrous acid | 235 |
Antioxidant derived radicals | Â |
Alpha-tocopherol radical | 2 × 105 |
Urate radical | 1 × 106 |
Thiyl/sulphenyl radical | 6 × 108 |