Abstract
To prepare Ginkgo biloba extract multivariant-phospholipid complex(MGBP) and improve the vitro dissolution of ginkgo total flavonoids by adding another water-soluble carrier in phospholipid complex. MGBP was prepared using solvent evaporation method with Poloxamer-188 as the carrier and the multivariant complex was analyzed by DSC and X-diffraction technique. The physicochemical properties of the MGBP we also studied, including apparent oil-water distribution coefficients in different pH aqueous solution and its release in vitro. The in vitro dissolution of ginkgo total flavonoids was significantly increased while the apparent oil-water distribution coefficient was improved after been made into multivariant-phospholipid complex. The preparation technology of MGBP is simple and economic. MGBP can significantly increase the vitro dissolution of ginkgo total flavonoids and improve oil-water distribution coefficients, which can be the reference for the bioavailability in vivo in the further researches.
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