Extraction method of total alkaloids from tripterygium hypoglaucum and application of extract
An extraction method and a technology of total alkaloids, which are applied in the field of plant extraction technology and drug research, can solve the problems of long soaking time, many impurities of total alkaloids, and difficult separation and purification
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Embodiment 1
[0048] Take 2kg of Kunming Begonia peeled root, crush it and pass through a 10-mesh sieve, soak it with 10 times the amount of 61% ethanol and place it in an ultrasonic instrument for 3 hours, filter out the medicinal solution, add 10 times the amount of 61% ethanol twice, soak At the same time, they were respectively placed in an ultrasonic instrument for 2 hours and 1 hour, and the medicinal liquid was filtered out, combined with the first medicinal liquid, and concentrated. Add 30% HCl to adjust the pH to 2-3, extract 3 times with an equivalent amount of chloroform, and keep the aqueous phase. Join Na 2 CO3 , adjust the pH to 9-11, then extract 3 times with an equivalent amount of chloroform, and combine the extracts to recover chloroform by rotary evaporation at 40-50°C to obtain 19.8 g of total alkaloids;
Embodiment 2
[0050] Take 100g of Kunming Begonia peeled root, crush it and pass through a 10-mesh sieve, soak it with 10 times the amount of 69% ethanol and place it in an ultrasonic instrument for 3 hours, filter out the medicinal solution, add 10 times the amount of 69% ethanol twice, soak At the same time, they were respectively placed in an ultrasonic instrument for 2 hours and 1 hour, and the medicinal liquid was filtered out, combined with the first medicinal liquid, and concentrated. Add 45% HCl to adjust the pH to 2-3, extract 3 times with an equivalent amount of chloroform, and keep the aqueous phase. Add Na 2 CO 3 , adjust the pH to 9-11, pass the alkaline solution through a C18 solid-phase extraction device, rinse the solid-phase extraction device with water for 30 minutes, and rinse with 45% ethanol. After collecting the rinse solution, recover ethanol by rotary evaporation to obtain 0.97g of total alkaloids ;
Embodiment 3
[0052] Take 100g of Kunming Begonia peeled root, crush it and pass through a 10-mesh sieve, soak it with 10 times the amount of 65% ethanol and place it in an ultrasonic instrument for 3 hours, filter out the medicinal solution, add 10 times the amount of 65% ethanol twice, soak At the same time, they were respectively placed in an ultrasonic instrument for 2 hours and 1 hour, and the medicinal liquid was filtered out, combined with the first medicinal liquid, and concentrated. Add 40% HCl to adjust the pH to 2-3, extract 3 times with an appropriate amount of chloroform, and keep the aqueous phase. Join Na 2 CO 3 , adjust the pH to 9-11, pass the alkaline solution through a C18 solid-phase extraction device, rinse the solid-phase extraction device with water for 30 minutes, and rinse with 50% ethanol. After collecting the washing liquid, recover ethanol by rotary evaporation to obtain 0.95 g of total alkaloids .
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