Ginkgo flavone extraction method

Ginkgo flavone extraction method

  • CN 102,000,125 A
  • Filed: 11/17/2010
  • Published: 04/06/2011
  • Est. Priority Date: 11/17/2010
  • Status: Active Application
First Claim
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1. ginkgetin extracting method is characterized in that comprising successively following process:

  • (1) Folium Ginkgo is pulverized, added deionized water, the warm macerating dynamic extraction;

    (2) extracting solution in the step (1) is cooled to leave standstill below 15 ℃

    12 hours, filters;

    (3) filtrate in the step (2) is carried out spray drying, collect dry thing;

    (4) with dry thing dissolve with ethanol solution, leave standstill, get supernatant and concentrate, get concentrated solution;

    (5), carry out adsorption and purification with macroporous resin with the concentrated solution dissolve with ethanol;

    Wash with water earlier to the effluent color light, reuse alcoholic solution eluting, the ginkgetin product.

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