Technology Study on Leaching Flavanoids from Ginkgo Extocarp

Abstract

Abstract: The method of leaching flavanoids from Ginkgo ectocarp was studied.The results showed that the optimal leaching conditions were:extracting agent:60% ethanol;temperature:60℃;MTS ratio:1∶12;and estracting time:2～3h for 2times.The crude flavonoids could be prelimilarily purified by the ADS -17 macroporous resin and it had strong scarenging action to•OH generated by FeSO4-H2O2 system.The IC50 value was 0 08mg/ml.

Key words: Ginkgo, Extocarp, Flavonoid, Leaching •OH

LI Chun-Mei, HE Jing-Ren, DU Hong-Xiang, XIE Bi-Jun. Technology Study on Leaching Flavanoids from Ginkgo Extocarp[J]. FOOD SCIENCE, 2002, 23(12): 70-74.

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Technology Study on Leaching Flavanoids from Ginkgo Extocarp

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