| Customization: | Available |
|---|---|
| Type: | Resin Rosin |
| Grade: | Special Grade |
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| source: | phenylpiracetam | type: power | |
| Cas | 77472-70-9 | material: Plant extract | |
| package: | 25kg/drum | production:5000T |
Grape seed extract is a kind of polyphenols extracted and isolated from grape seeds, mainly composed of proanthocyanidins, catechins, epicatechins, gallic acid, epicatechin gallic ester and other polyphenols.Antioxidant capacity
Grape seed extract is a natural substance, which is one of the most effective plant-derived antioxidants found so far. Experiments show that its antioxidant effect is 30 to 50 times that of vitamin C and vitamin E.
Proanthocyanidins have strong activity, which can inhibit carcinogens in cigarettes. The ability to capture free radicals in water phase is 2-7 times that of general antioxidants, and the activity of proanthocyanidins is more than two times higher than that of α-tocopherol.
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