Method for rapidly recovering punicalagin from pomegranate rind extraction waste based on solvent effect
A technology of punicalagin and pomegranate peel, which is applied in a field of rapid recovery of punicalagin, which can solve the problems of high difficulty, low punicalagin, poor water solubility and dispersibility, etc.
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Embodiment 1
[0016] a. Take the pomegranate peel and crush it into a coarse powder, add 10 times the concentration of 40% ethanol, extract once at a temperature of 71 ° C, filter for 3 hours, combine the filtrate to recover ethanol under reduced pressure, and concentrate to the equivalent of crude drug per mL 0.15-0.2g concentrated solution; add the concentrated solution to the treated HPD300 macroporous adsorption resin column, absorb for 3 hours, first wash with deionized water until the color of the effluent is light, and then use 2 times the column volume 60% ethanol was eluted, the alcohol-containing eluate was collected, the ethanol was recovered, concentrated under reduced pressure and vacuum-dried, pulverized, and passed through a 80-mesh sieve to obtain the pomegranate peel polyphenol extract;
[0017] b. Weigh 1096g of pomegranate peel extract, dissolve it in 8L of water, and ultrasonically dissolve it. Put it in a refrigerator at a temperature of 4°C for 10 hours, pour out the su...
Embodiment 2
[0021] a. Take the pomegranate peel and crush it into a coarse powder, add 15 times the concentration of 40% ethanol, extract twice at a temperature of 75°C for 1 hour each time, filter, combine the filtrate to recover ethanol under reduced pressure, and concentrate to the equivalent of Concentrate of 0.15-0.2g of crude drug; add the concentrate to the treated HPD300 macroporous adsorption resin column, absorb for 5 hours, first wash with deionized water until the color of the effluent is light, and then use 3 times eluting with 60% ethanol by column volume, collecting the eluent containing alcohol, recovering ethanol, concentrating under reduced pressure and vacuum drying, pulverizing, passing through a 100-mesh sieve to obtain the pomegranate peel polyphenol extract;
[0022] b. Weigh 1096g of pomegranate peel polyphenol extract, dissolve it in 8L of water, and ultrasonically dissolve it. Put it in a refrigerator at a temperature of 4°C for 10 hours, pour out the supernatant,...
Embodiment 3
[0026]a. Take the pomegranate peel and crush it into a coarse powder, add 18 times the concentration of 40% ethanol, extract 3 times at a temperature of 78°C, each time for 1 hour, filter, combine the filtrate to recover ethanol under reduced pressure, and concentrate to the equivalent of Concentrate of 0.15-0.2g of crude drug; add the concentrate to the treated HPD300 macroporous adsorption resin column, absorb for 8 hours, first wash with deionized water until the color of the effluent is light, and then use 4 times eluting with 60% ethanol in the column volume, collecting the eluent containing alcohol, recovering ethanol, concentrating under reduced pressure, drying in vacuum, pulverizing, and passing through a 80-120 mesh sieve to obtain the pomegranate peel polyphenol extract;
[0027] b. Weigh 1096g of pomegranate peel extract, dissolve it in 8L of water, and ultrasonically dissolve it. Put it in a refrigerator at a temperature of 4°C for 10 hours, pour out the supernatan...
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