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Antioxidants that are reducing agents can also act as pro-oxidants. For example, vitamin C has antioxidant activity when it reduces oxidizing substances such as hydrogen peroxide; [92] however, it will also reduce metal ions such as iron and copper [93] that generate free radicals through the Fenton reaction.
Antioxidants are reducing agents, and limit oxidative damage to biological structures by passivating them from free radicals. [ 4 ] Strictly speaking, the free radical theory is only concerned with free radicals such as superoxide ( O 2 − ), but it has since been expanded to encompass oxidative damage from other reactive oxygen species (ROS ...
Vitamins that are reducing agents can be pro-oxidants. Vitamin C has antioxidant activity when it reduces oxidizing substances such as hydrogen peroxide, [6] however, it can also reduce metal ions which leads to the generation of free radicals through the Fenton reaction. [7] [8] 2 Fe 2+ + 2 H 2 O 2 → 2 Fe 3+ + 2 OH· + 2 OH −
Antioxidants protect the body from the harmful effects of free radicals by bolstering cellular function and reducing oxidative stress. ... Lycopene is an antioxidant commonly found in tomatoes ...
The healthy fat contains antioxidants touted for reducing the risk of chronic health conditions and heart disease. Olive oil can also combat oxidative stress , which harms brain health and can ...
Reducing agents can be ranked by increasing strength by ranking their reduction potentials. Reducers donate electrons to (that is, "reduce") oxidizing agents, which are said to "be reduced by" the reducer. The reducing agent is stronger when it has a more negative reduction potential and weaker when it has a more positive reduction potential.
It is an antioxidant in plants, ... GSH, a potent reducing agent, donates electrons to disulfide bonds in the nanogels, initiating a thiol-disulfide exchange reaction ...
It is a mild reducing agent and antioxidant, typically reacting with oxidants of the reactive oxygen species, such as the hydroxyl radical. Reactive oxygen species are damaging to animals and plants at the molecular level due to their possible interaction with nucleic acids , proteins, and lipids.