Method for extracting boschniakia rossica glucoside form boschniakia rossica
A technology of cistanche glycosides and cistanche glycosides is applied in chemical instruments and methods, preparation of sugar derivatives, production of bulk chemicals, etc., which can solve the problems of low extraction rate and low extraction purity, and achieve large adsorption capacity. , good thermal stability, high degree of effect
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Embodiment example 1
[0017] Implementation Case 1: A method using supercritical CO 2 The method for enriching and purifying cistanche glycosides in Cistanche cistanche by fluid extraction and macroporous adsorption resin coupling method, the steps are as follows:
[0018] (1) Crush 500g of hay cistanche and pass through a 60-mesh sieve, add to CO 2 In the supercritical extractor, ethanol is used as the entrainer, the entrainer accounts for 1% by volume of the total extraction solvent, the extraction pressure is 20MPa, the temperature is 50°C, and the CO 2 The flow rate is 1mg / g crude drug min, and the extraction time is 100min to obtain the extract;
[0019] (2) adjusting the pH value of the Cistanche deserticola extract treated in step (1) to 3.0 with hydrochloric acid, leaving it to stand, suction filtration, and concentrating under reduced pressure to obtain the crude extract of Cistanche deserticola glucoside;
[0020] (3) The obtained cistanche glucoside crude extract is adsorbed with a mac...
Embodiment example 2
[0025] Implementation Case 2: A method using supercritical CO 2 The method for enriching and purifying cistanche glycosides in Cistanche cistanche by fluid extraction and macroporous adsorption resin coupling method, the steps are as follows:
[0026] (1) Crush 500g of hay cistanche and pass through a 70-mesh sieve, and add to CO 2 In the supercritical extractor, ethanol is used as the entrainer, the entrainer accounts for 2% by volume of the total extraction solvent, the extraction pressure is 30MPa, the temperature is 55°C, and the CO 2 The flow rate is 2mg / g crude drug min, and the extraction time is 120min to obtain the extract;
[0027] (2) adjusting the pH value of the cistanche cistanche glucoside extract to 38 with hydrochloric acid, standing, suction filtration, and concentrating under reduced pressure to obtain the cistanche cistanche glycosides crude extract;
[0028] (3) The obtained cistanche glucoside crude extract is adsorbed with a macroporous adsorption resi...
Embodiment example 3
[0033] Implementation Case 3: A method using supercritical CO 2 The method for enriching and purifying cistanche glycosides in Cistanche cistanche by fluid extraction and macroporous adsorption resin coupling method, the steps are as follows:
[0034] (1) Crush 500g of hay cistanche and pass through an 80-mesh sieve, and add to CO 2 In the supercritical extractor, ethanol is used as the entrainer, and the volume percentage of the entrainer in the total extraction solvent is 3%, the extraction pressure is 40MPa, the temperature is 60°C, and the CO 2 The flow rate is 3mg / g crude drug min, and the extraction time is 140min to obtain the extract;
[0035] (2) adjusting the pH value of the cistanche cistanche glucoside extract to 4.0 with hydrochloric acid, standing, suction filtration, and concentrating under reduced pressure to obtain the cistanche cistanche glucoside crude extract;
[0036] (3) The obtained cistanche glucoside crude extract is adsorbed with a macroporous adsor...
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