1 is a super antioxidant.
2. Not the strongest antioxidant
1 is a super antioxidant.
Procyanidins (OPC) exist in Lycium barbarum, grape seed, ginkgo, cypress, pine bark, black rice seed coat, rose and other plants, and are natural super antioxidants.
Anthocyanin (VMA) mainly exists in blueberry fruit, purple sweet potato and grape skin. Its main function is to relieve eye fatigue and accelerate the synthesis of rhodopsin by vitamin A in retina. Its ability of scavenging free radicals and antioxidation is far less than OPC.
They are different substances. But OPC can be transformed into VMA in plants, so it is called "proanthocyanidins".
2. Not the strongest antioxidant
Procyanidins are not the strongest antioxidants. Compared with VE, the ability of lycopene (ψ-carotene) to scavenge free radicals is 0/00 times that of VE. However, the ability of OPC to scavenge free radicals is only 50 times that of VE. The ability of astaxanthin to scavenge free radicals is 1000 times that of VE!
However, this does not prevent OPC from becoming a natural free radical scavenging substance used in medicine and nutrition. The reason is that lycopene and astaxanthin, which have stronger free radical scavenging ability than OPC, are fat-soluble substances, that is to say, they must be dissolved in organic phase to be absorbed, and the content of these substances in food is not high, so the amount that can really be obtained from food is very small. If it is not absorbed, it will not play a physiological role even if it is effective in the laboratory.
In addition, the human body is mostly water. Even after absorption, these substances can not be dissolved in body fluids, and their functions are limited. This greatly inhibits these substances with stronger free radical scavenging ability from playing a role. OPC is water-soluble, its overall absorption rate is far ahead of other substances, and its scope of action is body fluids.
Procyanidins (OPC) is a bioflavonoid with special molecular structure, which is internationally recognized as an effective natural antioxidant for scavenging human free radicals. It is generally reddish-brown powder, slightly smelly and astringent, and easily soluble in water and most organic solvents. Studies have shown that proanthocyanidins extracted from blueberry leaves can prevent hepatitis C virus replication. It is a bioflavonoid with special molecular structure and an effective natural antioxidant that can scavenge free radicals in human body. Usually grape seed extract or French coastal pine bark extract. Procyanidins (grape seed extract) is a new type of highly effective antioxidant with strong in vivo activity. Experiments show that the anti-free radical oxidation ability of OPC is 50 times that of vitamin E and 20 times that of vitamin C, and it is absorbed quickly and thoroughly. The highest plasma concentration can be reached in 20 minutes after oral administration, and the metabolic half-life can reach 7 hours.
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