Herba polygonic avicularis total flavones and its preparing method and medicine use
A technology for extract and total flavonoids, which is applied in the field of total flavonoid extract and its preparation, can solve the problems of unclear curative substances, inconvenient use, difficult quality control, etc. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] Adding the coarse powder of flat storage to water-containing ethanol and extracting 3-5 times by means of reflux or ultrasonic circulation, and the mass concentration of said water-containing ethanol is 50-95%. Wherein the weight ratio of flat storage and water-containing ethanol is 1:9~1:11, the solutions obtained from each extraction are combined, filtered, and after recovering ethanol, the extract is vacuum-dried to obtain extract powder, and then purified by an adsorption resin column , the aqueous solution of the extract powder is passed through the macroporous adsorption resin, then washed with water of 5-10 times the volume of the resin column, then eluted with 5-12 times the volume of the resin column, and the mass concentration is 30-40% ethanol, concentrated, and The concentrated solution is vacuum-dried to obtain a flavonoid extract. The sum of the weights of the flavonoids in the extract is 25% to 80% of the total weight of the extract. Dihydroflavonoids, di...
Embodiment 2
[0022] ultrasonic loop extraction
[0023] 1. Extraction
[0024] Take 200g of the original medicinal material of flat storage, pulverize it, and carry out ultrasonic circulation extraction for 3 times at 40°C with 2000mL of 65% ethanol at a power of 800W and a rotation speed of 1000r / min, each time for 35min. The solutions obtained from the various extracts were combined, filtered to remove the precipitate, the filtrate was concentrated under reduced pressure (55-65°C, 0.06-0.1Mpa), and then vacuum-dried to obtain the extract powder. Use purified water to configure an appropriate concentration according to the amount of resin to over-large porous adsorption resin D 101 Column, flow rate 1-2mL / min, then wash with 500-1000mL water, discard the wash, elute with 500-1000mL40% ethanol, elution rate 1-2mL / min, collect the eluate and concentrate under reduced pressure (60°C, 0.06-0.1Mpa) to nearly dry, and dried in a vacuum oven (60°C, 0.08-0.1Mpa, silica gel desiccant) for 3 hour...
Embodiment 3
[0031] Reflux extraction
[0032] Add the coarse powder of the lentils into ethanol with a mass concentration of 85% for reflux extraction for 3-5 times, wherein the weight ratio of the lentils to the water-containing ethanol is 1:9 to 1:11, combine the solutions obtained from each extraction, filter, and recover the ethanol Finally, vacuum-dry the extract to obtain extract powder, then use an adsorption resin column to carry out purification treatment, pass the aqueous solution of the extract powder through the macroporous adsorption resin, then wash with water 5-10 times the volume of the resin column, and then use 5-12 Times resin column volume, mass concentration is 30~40% ethanol eluting, concentrating, and concentrated solution is vacuum-dried, obtain flavonoid extract, the sum of the weight of flavonoid compound in the extract is 25%~of the total weight of extract 80%, the flavonoids refer to the chemical structure belonging to flavonoids, flavonols, dihydroflavonoids, ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More