Method for extracting dioscorea nipponica
An extraction method and a technology for Pangosaurus, applied in the field of extraction of Pseudomonas, can solve the problems of long production cycle, high energy consumption for concentration, low extraction efficiency, etc., and achieve the effect of full utilization and high extraction efficiency.
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Embodiment 1
[0015] A method for extracting pangosaurus, comprising the following steps: in the extraction tank 2 of the solvent circulation extraction single-effect concentration unit, immerse 20Kg of coarsely crushed pangosaurus in 100L of water for 14 hours, heat, and after the temperature reaches 95-100°C, open the extraction The discharge valve of the tank and the feed valve of the reboiler 11 allow the extract to enter the reboiler 11 and the evaporator 14, and when the liquid level reaches 1 / 3 to 1 / 2 of the height of the reboiler 11, close the inlet material valve, heat the reboiler 11, make the extract evaporate and concentrate in the reboiler and evaporator, the steam generated enters the cooling tower, condenses into hot water, and the hot water is returned to the extraction tank through the pump 16, and after the backflow starts, Adjust the vacuum degree, the discharge valve of the extraction tank and the feed valve of the reboiler 11, and control the reflux rate under the condit...
Embodiment 2
[0018] A method for extracting pangosaurus, comprising the following steps: in the extraction tank 2 of the solvent circulation extraction single-effect concentration unit, soak 20Kg of the coarsely crushed pangosaurus in 140L of water for 10 hours, heat, and after the temperature reaches 95-100°C, open the extraction The discharge valve of the tank and the feed valve of the reboiler 11 allow the extract to enter the reboiler 11 and the evaporator 14, and when the liquid level reaches 1 / 3 to 1 / 2 of the height of the reboiler 11, close the inlet material valve, heat the reboiler 11, make the extract evaporate and concentrate in the reboiler and evaporator, the steam generated enters the cooling tower, condenses into hot water, and the hot water is returned to the extraction tank through the pump 16, and after the backflow starts, Regulate the vacuum degree, the discharge valve of the extraction tank and the feed valve of the reboiler 11, and control the reflux velocity under the...
Embodiment 3
[0021] An extraction method of pangosaurus, comprising the steps of: soaking 20Kg of roughly pulverized pangosaurus in 120L of water for 12h in the extraction tank 2 of the solvent circulation extraction double-effect concentration unit, heating, and controlling the reflux rate to 0.7L / min (reflux rate=1.44 times the initial water addition / 4h), reflux for 4h, collect the extract, and concentrate under reduced pressure to 60°C when the relative density is 1.07, add ethanol after letting it cool, stir fully, so that the volume concentration of ethanol is 70%, statically Set aside for 12 hours, filter out the precipitate, and recover the ethanol from the filtrate under reduced pressure to obtain the pangosaurus extract.
[0022] The amount of diosgenin that can be obtained per g of raw medicinal materials is 7.4mg.
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