Quercetin is a flavonoid widely found in vegetables and fruits.It has the biological activity of anti-free radical, anti-oxidation, anti-bacteria, anti-inflammatory and anti-allergic.It is widely used in medicine, food and cosmetics.
- Anti-free radical effect, quercetin inhibits the activity of lipid oxidase in cell membrane, which can inhibit the lipid peroxidation process of cell membrane and protect cells from peroxidation.Quercetin is a superoxide anion radical trapping agent, complexing iron ions and preventing free radicals from being produced in the body.
- Antioxidant effect, quercetin contains more phenolic hydroxyl groups, easy to oxidize and provide proton H+, with phenolic antioxidant properties.
- Anti-inflammatory and anti-allergic. Inhibits the synthesis of inflammatory factors by inhibiting lipoxygenase and cycidase.
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