A kind of extraction method of lactone in ginkgo ginkgo
An extraction method and ginkgo technology, applied in the extraction of ginkgo ginkgo active components and the extraction of lactones in ginkgo ginkgo, can solve the problems of complicated operation, low yield, low purity, etc., and achieve high purity, high product yield, good extraction effect
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Embodiment 1
[0021] Get the liquid liquid;
[0022] Step 2, add 30kg of isot butanol to the liquid liquid, mix well, absorb resin through large holes for removing miscellaneous, collect through the liquid;
[0023] Step 3, 1%sodium hydroxide solution with a mass concentration of 1%hydroxide solution, through the pH of the liquid to 8.0, and then filter it with ultrafiltration membrane to obtain ultrafiltration through the liquid;
[0024] Step 4, add 50kg of ethyl acetate to the ultrafiltration through the liquid to extract the organic phase;
[0025] Step 5, heated the organic phase to be heated and concentrated. When the volume of the material is reduced to 30%, the crystals are cooled, and the crystals are filtered out and dried.
[0026] The large hole adsorption resin in Step 2 is HP20 polystyrene pores adsorption resin. The intercept molecular weight used in step 3 is 200,000 dada, and the drying temperature in step 5 is 80 ° C.The dry time is 4 hours.
[0027] A total of 30g of ginkgo l...
Embodiment 2
[0029] Step 1, take 40kg of ginkgo, dry it at 120 ° C for 6 hours, grind it into powder, add to 200kg of potassium sulfate solution with 1%, stir well, heat to 60 ° C, heat up for 4 hours, cool down, cool down, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, cool, and let it cool.Get the liquid liquid;
[0030] Step 2, add 40kg of isot butanol to the liquid liquid, mix well, absorb resin through large holes for removing miscellaneous, collect through the liquid;
[0031] Step 3, 1%sodium hydroxide solution with a mass concentration of 1%hydroxide solution, through the pH of the liquid to 10.0, and then filter it with ultrafiltration membrane to obtain ultrafiltration through the liquid;
[0032] Step 4, add 60kg of ethyl acetate to the ultrafiltration through the liquid to extract the organic phase;
[0033] Step 5. Heat and concentration of organic phase. When the volume of the material is reduced to 50%of the original, the crystals are cooled, and the crystals are fi...
Embodiment 3
[0037] Step 1, take 35kg of ginkgo, dry it at 110 ° C for 5 hours, grind it into powder, add to 170kg of potassium sulfate solution of 0.7%, stir well, heat it to 55 ° C, heat for 3 hours, let it cool, let it cool, let it cool, let it cool, let it cool down, cool, cool, and let it cool.Get the liquid liquid;
[0038] Step 2, add 35kg of isot butanol to the liquid liquid, mix well, absorb resin through large holes for removing miscellaneous, collect through the liquid;
[0039] Step 3, a sodium hydroxide solution with a mass concentration of 1%hydroxide solution adjusts through the pH of the liquid to 9.0, and then filter it with an ultrafiltration membrane to obtain the ultrafiltration through the liquid;
[0040] Step 4, add 55kg of ethyl acetate to the ultrafiltration through the liquid to extract the organic phase;
[0041] Step 5, heated the organic phase to be heated and concentrated. When the volume of the material is reduced to 40%, the crystals are cooled, and the crystals...
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