Study on New Technical Conditions for Ginko biloba Extraction and Purification

Abstract

Abstract: The new technical conditions for the preparation of Ginkgo biloba extract were studied. The leaves of G.biloba wereextracted with petroleum ether and then 80% ethanol under reflux. The concentrated extract was treated with water, clarified andthen filtred. The necessary components in the filtrate were adsorbed on macro reticular resin, and eluated with 75% ethanol. Thealcoholic eluate after concentration, was spray dried and the final G.biloba extract was given with a flavonoid content>24% anda lactone content>6%.

Key words: Ginkgo biloba flavonoid, lactone, procreative technics, industrialization

ZHANG Ai-Jun, LIU Fa-Yi, SHI Hong-Qi, SHEN Ji-Hong, SHI Shu-He. Study on New Technical Conditions for Ginko biloba Extraction and Purification[J]. FOOD SCIENCE, 2003, 24(10): 100-104.

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Study on New Technical Conditions for Ginko biloba Extraction and Purification

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