How Do Plant Extracts Remove Free Radicals?
Studies have shown that the production and reaction of excessivefree radicals and reactive oxygen species in vivo are closely related to the occurrence and development of many diseases and the aging process of organisms under the condition of the imbalance of organism homeostasis balance. Reactive oxygen species (ros) can damage biological macromolecules (such as proteins, enzymes and DNA), cause DNA mutations or breaks, and damage functional proteins and membrane structures. Free radicals damage the body is an important inducement to accelerate human aging.
Supplementation of antioxidant nutrients helps to reduce oxidative damage and delay. Therefore, it is of great significance to search for antioxidant foods and Chinese herbs that can effectively scavenge free radicals.
Natural products are complex, and the mechanism of free radicals on the whole, and in the natural products is rich in antioxidant activity of related substances, through natural products containing highly active antioxidants (such as flavonoids, tannins, unsaturated fatty acids, vitamins, etc.) to supplement the body's antioxidant substances, in order to improve the endogenous antioxidant enzyme activity, to prevent the formation of free radical chain reaction and further damage.
It has been reported that both flavonoids and phenolic compounds have a scavenging effect on free radicals. In addition, structural factors related to antioxidant activity, such as the number and position of phenolic hydroxyl groups and the spatial steric resistance generated by the combination of monomers, have a certain relationship with the scavenging ability of free radicals.