Quercetin

Intro
Quercetin is widely found in angiosperms, such as red tubularia, cat’s eye, iron bag gold.

Manchia red, loquat loquat, Rhododendron rhododendron, white mountain, dwarf tea, Apocynum.

It is an aglycone, which is often combined with sugar in the form of glucoside, such as quercetin, rutin, hypericin, etc.

Plant origin

Quercetin is a widely distributed flavonol compound with various biological activities in the plant kingdom.

It exists in a variety of vegetables and fruits, such as acai berries, broccoli and apples, and also exists in tea, red wine, olive oil and propolis .

And other foods, among which the content is higher in sophora flowers, buckwheat stalks and leaves, sea buckthorn, hawthorn, onion.

Efficacy and effect
Quercetin, as the most common flavonoid, has a variety of biological activities, can be antioxidant.

And plays an important role in the clinical treatment of cancer and cardiovascular diseases.

Antioxidant function Quercetin not only participates in antioxidant in vitro, can inhibit oxidative damage of DNA.

But also can protect tissues from oxidative damage in vivo by reducing the concentration of peroxide in tissues.

On the one hand, quercetin can effectively inhibit the production of free radicals.

Its flavonoid components such as quercetin can significantly reduce the incidence of gastric cancer, directly inhibit the growth of cancer cells or may act on the cell transduction pathway of cancer cell proliferation.

On the other hand, it can enhance the action of anti-cancer drugs and significantly improve their efficacy.

Chemical property
Yellow acicular crystalline powder. Thermally stable, decomposition temperature 314℃.

It can improve the light resistance of food pigments and prevent the change of food flavor.

It changes color when exposed to metal ions. Slightly soluble in water, easily soluble in alkaline aqueous solution.

Quercitone and its derivatives are a kind of flavonoid compounds widely present in various vegetables and fruits.