Ginkgo biloba extract 35%

Ginkgo biloba extract is a dry leaf extract of Ginkgo biloba (Ginkgobiloba L.), the main component of which is flavonoids and terpene lactone. It has various health care functions and is widely used in food and cosmetics.

1. Action on cardiovascular system Ginkgo biloba extract can inhibit the activity of angiotensin converting enzyme (ACE) in normal human serum, thereby inhibiting the contraction of small arteries, dilating blood vessels and increasing blood flow. Ginkgo terpene lactone is a highly specific PAF receptor blocker. Ginkgo biloba extract or ginkgo terpene lactone can inhibit platelet activating factor (PAF) and cyclooxygenase or lipoxygenase. Ginkgo biloba extract is well tolerated and antagonizes platelet aggregation caused by PAF, but has no effect on ADP-induced aggregation. 2. Effect on the central nervous system Ginkgo biloba extract affects the endocrine system and affects the interaction between the immune system and the central nervous system by inhibiting the effect of PAF, which can promote cerebral circulation metabolism and improve memory function. In addition to improving the lack of memory impairment caused by NaNO2, its anti-hypoxia effect may be related to increasing cerebral blood flow and improving brain energy metabolism during hypoxia. Ginkgolide B can be used for clinical treatment of stroke. 3. Effect on the digestive system Ginkgo biloba extract can significantly improve gastric and intestinal ulcers caused by PAF and endotoxin, and can partially inhibit the damage of ethanol to the stomach. It has potential therapeutic effect on liver cirrhosis. Ginkgolide B may play a role in the treatment of acute pancreatitis. 4. Effect on the respiratory system The ethanol extract of Ginkgo biloba has a direct relaxing effect on the tracheal smooth muscle. Inhalation of atomized Ginkgo biloba extract not only inhibits bronchoconstriction, but also inhibits the reduction of white blood cells and eosinophils caused by PAF in Chemicalbook. Ginkgo biloba extract is of great significance in inhibiting and treating bronchial hyperresponsiveness. 5. Anti-aging effect Ginkgo diflavonoids, isoginkgo diflavonoids, ginkgo biloba and quercetin in Ginkgo biloba leaves all inhibit lipid peroxidation, especially quercetin has stronger inhibitory activity. 7. The role in transplant rejection and other immune responses Ginkgo biloba extract can prolong the survival time of transplanted skin, heterotopic heart xenotransplantation, orthotopic liver xenotransplantation. Ginkgo biloba extract can inhibit human body's natural killer cell activity on KC526 target cells, and also prevent natural killer cell activity caused by interferon. 8. Antitumor effect The crude extract of Ginkgo biloba leaf and green leaf, that is, the fat-soluble part, can inhibit EB virus, and heptadecene salicylic acid and Bilo-betin have strong inhibitory activity; the total flavonoids of Ginkgo can increase the load Thymus weight and SOD activity levels in tumor mice regulate the in vivo anti-tumor ability; quercetin and myricetin can inhibit the occurrence of carcinogens. 9. Antioxidant Ginkgo biloba extract can directly remove lipid free radicals, lipid peroxidation free radicals and alkane free radicals, etc., to terminate the free radical chain reaction chain. At the same time, it can also participate in regulating and enhancing the activity of antioxidant enzymes such as peroxidase, glutathione peroxidase. The antioxidant effect of flavonoids in EGB even exceeds that of vitamins, and it has anti-free radical attack properties in vitro.