Natural Grape Skin/Peel Extract Polyphenols & Resveratrol Powder for Healthcare Supplement
Product specification
|
Grape Skin Extract Technical Data Sheet |
|
|
Sense Index |
|
|
Appearance |
Reddish Brown powder |
|
Odor & Taste |
Characteristic |
|
Physical-chemical Index |
|
|
Polyphenols((UV) |
10%-30% |
|
Particle Size |
98% pass 80 mesh |
|
Loss on drying |
5% Max |
|
Ash |
5% Max |
|
Heavy metals |
10ppm Max |
|
Lead |
2ppm Max |
|
Arsenic |
2ppm Max |
|
Mercury |
0.1ppm Max |
|
Cadmium |
1ppm Max |
|
Microbiology Index |
|
|
Total plate count |
1,000cfu/g Max |
|
Mold & yeast |
100cfu/g Max |
|
Enterobacteriae |
10cfu/g Max |
|
E.Coli |
Absent in 10g |
|
Salmonella |
Absent in 25g |
|
Statements: Non-Irradiated, Non-GMO |
|
|
Packaging: 1kg/aluminium foil bag, 25kg/drum (37*37*50cm). |
|
|
Shelf Life: 24 months stored in original packaging away from the light, and under the optimal temperature 10~25℃. |
|
Introduction to Grape Skin Extract
Grape Skin Extract is a natural active ingredient derived from the skin of wine grapes (Vitis vinifera), primarily obtained through solvent extraction or supercritical CO₂ extraction. Its core active components are Polyphenols, typically standardized to over 30% content. It also contains resveratrol, vitamin E, and other antioxidants. The extract appears as a brownish-red to light brown powder with good water solubility and strong antioxidant properties. Initially a byproduct of winemaking, grape skin are now globally recognized as a representative plant-based antioxidant, widely used in the food, health product, and cosmetics industries.
Efficacy of Grape Skin Extract
The core efficacy of Grape Skin Extract stems from its potent antioxidant capacity. Proanthocyanidins effectively scavenge free radicals, inhibit lipid peroxidation, and protect cells from oxidative damage. They enhance vascular elasticity, reduce capillary permeability, and improve microcirculation. Their anti-inflammatory effects help alleviate joint inflammation and skin allergies. Studies indicate they can mitigate skin damage from UV radiation and delay photoaging. Additionally, Grape Skin Extract exhibits potential anti-edema effects, improves vision, assists in lowering cholesterol, and inhibits the proliferation of certain cancer cells, making it a comprehensive natural health-protective component.
Application Fields of Grape Skin Extract
Grape Skin Extract is primarily used in antioxidant health products, such as capsules or tablets for anti-aging, cardiovascular protection, and vision improvement. It serves as a natural antioxidant additive in functional foods and beverages. The cosmetics industry extensively incorporates it into anti-aging, sun protection, and reparative skincare products. In the pharmaceutical field, it is used to develop drugs for improving varicose veins and assisting in the treatment of chronic inflammation. The food industry employs it as a natural preservative to prevent oil rancidity. Additionally, it is applied in sports nutrition products, pet antioxidant supplements, and medical foods. Nano-encapsulation technology is expanding its use in precision nutrition and therapy.