FOOD SCIENCE ›› 2003, Vol. 24 ›› Issue (3): 64-67.

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Study on the Technological Conditions of Extracting Ginkgolic Acids from Ginkgo Biloba L .Episperm

 NI  Xue-Wen, WU  Mou-Cheng   

  • Online:2003-03-15 Published:2011-12-13

Abstract: The newtechnological conditions of extracting ginkgolic acids fromepi spermof Ginkgo Biloba L.were studied.The main factors affecting extraction rate of ginkgolic acids a nd optimum refining conditions were dis-cussed.The results showed that usin g 1∶7of 80%ethanol to epispermof Gin kgo Biloba L.weight ratio,Ginkgo BilobaL.epispermwasextractedbyr efluxingat60℃for3timesand4heach time.Then,theextracts was filtere d,enriched and refined with the resin.The obtained ginkgolic acids products showed 52.14%purity and 3.05%yield.

Key words: epispermof Ginkgo Biloba L, ginkgolic acids, extraction