Method for extracting and separating nux vomica total alkaloids from nux vomica
A technology of total alkaloids and nuxychonzi, which is applied in the field of medicine to achieve the effects of short production cycle, simple and convenient preparation process and low cost
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Embodiment 1
[0021] Weigh 50.0g of Nuxychnium seed coarse powder, put it in a round bottom flask, add 400ml of 50% ethanol for the first time, extract by heat reflux method for 2h, filter, add 300ml of 50% ethanol for the second time, extract by heat reflux method for 1.5h, Add 200ml of 50% ethanol to the third filtration, heat reflux extraction for 0.5h, filter, combine the three filtrates, use HPLC to detect the concentration of the extract in the filtrate and calculate the extraction rate, concentrate the filtrate to constant weight, and calculate the extract rate.
Embodiment 2
[0023] Weigh 50.0g of Nuxychnium seed coarse powder, put it in a round bottom flask, add 400ml of 50% ethanol for the first time, extract for 1h with ultrasonic-assisted extraction, filter, add 300ml of 50% ethanol for the second time, extract 0.5ml with ultrasonic-assisted extraction h, filter, add 50% ethanol 200ml for the third time, extract 0.5h by ultrasonic-assisted extraction, filter, combine the filtrate three times, detect the concentration of the extract in the filtrate with high performance liquid phase and calculate the extraction rate, concentrate the filtrate to constant weight, and calculate the extraction rate. ointment rate.
Embodiment 3
[0026] Table 1 Effects of different extraction methods on the extraction rate and extract rate of active ingredients
[0027]
[0028] Conclusion: From Table 1, we know that the extraction rate of the flash extraction method is the lowest among the three methods, and the strychnine and strychnine extracted by heat reflux extraction for 4.5h and ultrasonic wave for 2h have similar extraction rates, while the extraction rate of strychnine and strychnine extracted by the flash extraction method for 4min The extraction rate is higher than that of the first two methods, and the extraction rate of strychnine and strychnine can both reach more than 80%, reflecting the advantages of high efficiency and rapidity of flash extraction.
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