Anti-drug - Import export

Catechin has a variety of pharmacological effects such as anti-tumor, antioxidant, anti-bacterial and protection of heart and brain organs. These pharmacological activities are mainly determined by its polyhydroxyl structure. However, the polyhydroxyl structure also makes catechins neutral and alkaline. The structure is unstable under the conditions. After being ingested by the human body, catechins will quickly undergo methylation or glycosylation under the action of biological enzymes. Studies have found that the introduction of other groups into the catechin structure can effectively improve its stability and bioavailability, and is specific Sex enhances the pharmacological effects of catechins. Among them, methyl catechins have outstanding performance in anti-allergic and reversing the drug resistance of tumor cells. Glycoside catechins have significantly improved water solubility and can effectively prevent browning, while acylated catechins have significantly enhanced