Method for extracting panax notoginseng saponins by using continuous countercurrent ultrasonic extraction combined film technology
A technology of total Panax notoginseng saponins and countercurrent ultrasound, which is applied in the directions of drug combinations, pharmaceutical formulations, and medical preparations containing active ingredients, etc., can solve the problem of severe foaming of Panax notoginseng saponins, difficulty in forming a large concentration difference, and difficulty in ultrasonic waves being effective. problems such as conduction, to achieve the effect of shortening the extraction cycle, reducing energy consumption, and preventing hydrolysis
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[0057] Example 1
[0058] Take 30 kg of coarse powder of notoginseng cut mouth, feed it from the feed port of the head of the continuous countercurrent ultrasonic extraction tube, add 8 times the amount of 75% ethanol (240kg) from the tail of the continuous countercurrent ultrasonic extraction tube, and perform continuous countercurrent ultrasonic extraction , Set the ultrasonic frequency to 40KHz, set the ultrasonic temperature to 20℃, continuous countercurrent ultrasonic extraction for 20min, collect the ethanol ultrasonic extract, filter, the filtrate temperature is 20℃, the filtrate is concentrated with a nanofiltration membrane with a cutoff relative molecular weight of 100-400, operating pressure When it reaches 0.2MPa, there is permeate flowing out, the flow rate is very slow, increase the operating pressure to 2.9MPa, the flow rate is stable, until there is no permeate flowing out, add water to the membrane concentrate until the alcohol content reaches 15%, stand still, fi...
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[0059] Example 2
[0060] Take 30 kg of the coarse powder of Panax notoginseng and feed it from the feed port at the head of the continuous countercurrent ultrasonic extraction tube, and add 15 times the amount of 40% ethanol (450kg) from the solvent inlet at the tail of the continuous countercurrent ultrasonic extraction tube for continuous countercurrent ultrasonic extraction. Set the ultrasonic frequency to 20KHz, set the ultrasonic temperature to 50°C, continuous countercurrent ultrasonic extraction for 60min, collect the ultrasonic extract, filter, the filtrate temperature is 50°C, the filtrate is concentrated with an ultrafiltration membrane with a cut-off relative molecular weight of 1000, when the operating pressure reaches 0.1MPa , There is permeate flowing out, the flow rate is very slow, increase the operating pressure to 0.4MPa, the flow rate is stable, until the membrane is concentrated and no permeate flows out, the membrane concentrate is decompressed and concentrat...
Example Embodiment
[0061] Example 3
[0062] Take the 20% ethanol soaked and moistened, crush 30 kg of the coarse powder of notoginseng cut mouth, feed it from the inlet of the continuous countercurrent ultrasonic extraction tube head, and add 6 times the amount of 90% ethanol from the solvent inlet of the tail of the continuous countercurrent ultrasonic extraction tube ( 180kg), carry out continuous countercurrent ultrasonic extraction, set the ultrasonic frequency to 80KHz, set the ultrasonic temperature to 30℃, and continuously countercurrent ultrasonic extraction for 40min, collect the ultrasonic extract, filter, the filtrate temperature is 30℃, and the filtrate uses ultrafiltration with a relative molecular weight cut-off of 25000 Membrane concentration, when the operating pressure reaches 0.1MPa, there will be permeate outflow, the flow rate is very slow, increase the operating pressure to 0.7MPa, the flow rate is stable, until the membrane is concentrated without permeate outflow, the membran...
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