One-electron oxidation of catecholamines generates free radicals with an in vitro toxicity correlating with their lifetime

Antioxidant activity of carotenoids: An

Antioxidant activity of carotenoids: An electron-spin resonance study on β-carotene and lutein interaction with free radicals generated in a chemical system

✍ Anna Iannone; Cristina Rota; Stefania Bergamini; Aldo Tomasi; Louise M. Canfield 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 1 views

beta-Carotene is thought to be a chain-breaking antioxidant, even though we have no information about the mechanism of its antioxidant activity. Using electron-spin resonance (ESR) spectroscopy coupled to the spin-trapping technique, we have studied the effect of beta-carotene and lutein on the radi