Ginkgo flavone extraction method

Ginkgo flavone extraction method

  • CN 102,000,125 B
  • Filed: 11/17/2010
  • Issued: 11/06/2013
  • Est. Priority Date: 11/17/2010
  • Status: Active Grant
First Claim
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1. ginkgo flavone extraction method is characterized in that comprising successively following process:

  • (1) Folium Ginkgo is pulverized, added deionized water, be heated to 45-55 ℃

    of dynamic lixiviate and extract;

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

    standing 12 hours, filters;

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

    (4) with dry thing alcoholic solution reflux, extract,, concentrated, get concentrated solution;

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

    First wash with waterLight to the effluent color, then use the alcoholic solution eluting, get the ginkgetin product.

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