Externally used pharmaceutical composition, preparation method and application thereof
A technology of external drug and composition, applied in the field of external drug composition, to achieve the effect of inhibiting bacterial growth, fine and uniform texture, and stable quality
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Embodiment 1
[0029] The preparation of embodiment 1 pharmaceutical gel of the present invention
[0030] Preparation of polyphenol extract from pomegranate peel:
[0031] a. Take the pomegranate peel and grind it into a coarse powder, add 6 times the concentration of 65% ethanol to extract twice, each time for 1 hour, filter, combine the filtrate to recover ethanol under reduced pressure, and concentrate to a concentrated solution equivalent to 0.15g of crude drug per ml ;
[0032] b. Add the concentrated solution to the treated HPD100 macroporous adsorption resin column, absorb for 6 hours, first wash with deionized water until the color of the effluent is light, and then elute with 3 times the column volume of 60% ethanol, Collect the alcohol-containing eluate, recover ethanol, concentrate under reduced pressure, and vacuum-dry to form an extract, pulverize, pass through a 100-mesh sieve, and obtain a pomegranate peel polyphenol extract for later use, wherein the content of punicalagin ...
Embodiment 2
[0036] The preparation of embodiment 2 drug gel of the present invention
[0037] Preparation of polyphenol extract from pomegranate peel:
[0038] a. Take the pomegranate peel and grind it into a coarse powder, add 5 times the concentration of 50% ethanol to extract once, each time for 2 hours, filter, combine the filtrate to recover ethanol under reduced pressure, and concentrate to a concentrated solution equivalent to 0.1g of crude drug per ml ;
[0039] b. Add the concentrated solution to the treated HPD100 macroporous adsorption resin column, absorb for 3 hours, wash with deionized water until the color of the effluent is light, and then elute with 40% ethanol with 2 times the column volume. Collect the alcohol-containing eluent, recover ethanol, concentrate under reduced pressure, and vacuum-dry to form an extract, pulverize, and pass through an 80-mesh sieve to obtain a pomegranate peel polyphenol extract for later use. The content of punicalagin in the extract is 10....
Embodiment 3
[0043] Embodiment 3 The preparation of drug gel of the present invention
[0044] Preparation of polyphenol extract from pomegranate peel:
[0045] a. Take the pomegranate peel and grind it into a coarse powder, add 10 times the concentration of 70% ethanol to extract 3 times, each time for 1 hour, filter, combine the filtrate to recover ethanol under reduced pressure, and concentrate to a concentrated solution equivalent to 0.2g of crude drug per ml ;
[0046] b. Add the concentrated solution to the treated HPD100 macroporous adsorption resin column, absorb for 10 hours, rinse with deionized water until the color of the effluent is light, and then elute with 70% ethanol of 6 times the column volume. Collect the alcohol-containing eluent, recover ethanol, concentrate under reduced pressure and vacuum-dry to form an extract, pulverize and pass through a 120-mesh sieve to obtain a polyphenol extract of pomegranate peel for later use, wherein the content of punicalagin in the ex...
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