Myricetin is a flavonoid extracted from the fruit of bayberry, which has the functions of scavenging free radicals, anti-oxidation, anti-tumor, reducing neurotoxicity, affecting lymphocyte activation and proliferation, anti-platelet activating factor, reducing blood sugar, relieving alcohol poisoning, Prevents alcoholic liver Chemicalbook, fatty liver, inhibits the deterioration of liver cells, reduces the incidence of liver cancer, protects the liver and protects the liver, anti-inflammatory and other effects. It can also strongly inhibit yeast α-glucosidase and glucosidase. I. In vitro glucosidase I and xanthine oxidase in milk.