FOOD SCIENCE ›› 2003, Vol. 24 ›› Issue (10): 100-104.

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Study on New Technical Conditions for Ginko biloba Extraction and Purification

 ZHANG  Ai-Jun, LIU  Fa-Yi, SHI  Hong-Qi, SHEN  Ji-Hong, SHI  Shu-He   

  1. The Key Laboratory of Marine Bioactive Substances,The First Institute of Oceanography,SOA
  • Online:2003-10-15 Published:2011-12-13

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