Grape seed P.E.[Plant Origin] Vitis vinifera[Plant Description] Perennial, woody climbing vine; stems up to 35 m long, but in cultivation usually reduced by annual pruning to 1–3 m. Fruit a soft, pulpy berry, skin adhering to pulp, oval or oblong, ellipsoid to globose, skin green, yellow, red or purplish-black, in large, long clusters; seeds 2–3, sometimes none, pyriform, with rather long beak. Fl. May–June; fr. summer. The seeds which remained from the wine manufacture alawys used as our material. .[Distriction] Widely planted along Changjinang River and extend to its north area, also found in XinJiang, GanSu, Shangxi, Hebei and ect.[Product appearance]Brown-red powder.                Procyanidin B4                  C30H26O12,                 578.54 [Product Content] Procyanidolic≥95.0%;OPC≥95.0%.[Pharmacological Actions] Flavonoids, the group of nutrients to which proanthocyanidins belong, have been well researched as antioxidants. Grape seed extract also has an impressive body of literature to support its antioxidant capability. In addition,it can be used to resist mutation,virus,epiphyte,tummy.

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