Repair dressing containing ginseng extract and preparation method thereof
A technology of ginseng extraction and plant extract, applied in medical science, bandages, etc., can solve the problems of unguaranteed antibacterial properties, easy shedding, physical doping, etc., and achieve excellent water retention and moisturizing properties, reasonable process design, and high practicability Effect
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Embodiment 1
[0038] A preparation method of a repair dressing containing ginseng extract, comprising the following steps:
[0039] (1) Take starch, add 2mL sodium hydroxide, stir and mix for 20min, basify at -18°C for 20h, let stand to thaw, then transfer to 50mL ethanol solution, stir and disperse for 1h, add trisodium and benzyl ammonium chloride (catalyst ), continue stirring for 10 minutes, add 2-chloroethylamine hydrochloride, stir and react for 18 hours, collect the product by filtration, wash, and freeze-dry to obtain modified starch; the mass ratio of starch to 2-chloroethylamine hydrochloride is 1:2 .
[0040] (2) Get chitosan and acetic acid solution, mix and stir to obtain a mixed solution, the mass concentration of the mixed solution is 2.5%, spray the mixed solution into the sodium polyphosphate solution, react for 4h, get the precipitated beads, transfer to sodium hydroxide Swell in the solution, then add epichlorohydrin solution, continue to react for 24 hours, wash until n...
Embodiment 2
[0051] A preparation method of a repair dressing containing ginseng extract, comprising the following steps:
[0052] (1) Take starch, add 2mL sodium hydroxide, stir and mix for 25min, basify at -18°C for 21h, let stand to thaw, then transfer to 50mL ethanol solution, stir and disperse for 1.2h, add trisodium and benzyl ammonium chloride ( Catalyst), continue to stir for 15min, add 2-chloroethylamine hydrochloride, stir and react for 19h, filter and collect the product, wash, and freeze-dry to obtain modified starch; the mass ratio of starch to 2-chloroethylamine hydrochloride is 1: 2.
[0053] (2) Get chitosan and acetic acid solution, mix and stir to obtain a mixed solution, the mass concentration of the mixed solution is 2.5%, spray the mixed solution into the sodium polyphosphate solution, react for 4.5h, take the precipitated beads, and transfer to the hydroxide Swell in sodium solution, then add epichlorohydrin solution, continue to react for 25 hours, wash until neutra...
Embodiment 3
[0064] A preparation method of a repair dressing containing ginseng extract, comprising the following steps:
[0065] (1) Take starch, add 2mL sodium hydroxide, stir and mix for 30min, basify at -18°C for 22h, let stand to thaw, then transfer to 50mL ethanol solution, stir and disperse for 1.5h, add trisodium and benzyl ammonium chloride ( catalyst), continue to stir for 20min, add 2-chloroethylamine hydrochloride, stir and react for 20h, filter and collect the product, wash, and freeze-dry to obtain modified starch; the mass ratio of starch to 2-chloroethylamine hydrochloride is 1: 2.
[0066] (2) Get chitosan and acetic acid solution, mix and stir to obtain a mixed solution, the mass concentration of the mixed solution is 2.5%, spray the mixed solution into the sodium polyphosphate solution, react for 4.5h, take the precipitated beads, and transfer to the hydroxide Swell in sodium solution, then add epichlorohydrin solution, continue to react for 26 hours, wash until neutra...
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