Pale yellow or white powder, HPLC detection, content over 20%. The main functions: antibacterial anti-virus, anti-tumor, anti - hepatitis, inhibiting platelet aggregation and thromboxane B2 production. It can prevent the oxidation of low-density lipoprotein, is a potential prevention and treatment of cardiovascular diseases, anti-cancer, anti-viral and immune regulation, and its role mainly for its antioxidant properties.