PREPARATION METHOD OF HIGH-PURITY TOTAL GINKGO FLAVONOL GLYCOSIDE AND APPLICATION OF SAME

摘要

A preparation method of high-purity total ginkgo flavonol glycoside, comprising the following steps: (1) mixing ginkgo ketone ester powder and a first alkaline solution, followed by dissolution and centrifugation to obtain a supernatant; and (2) subjecting the supernatant to separation with an acid-polar coupled macroporous resin column and to purification with a polyamide column to obtain high-purity total ginkgo flavonol glycoside with a purity of ≥ 90%. The method has a high transfer rate of total flavonol glycoside.