A kind of instant berberine preparation and preparation method and application thereof
A technology of berberine and instant dissolving, applied in the field of medicine, can solve the problems of complicated process, only reaching 2%, polluting the environment, etc., and achieve the effect of strong hydrophilicity
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[0017] The preparation method of instant berberine preparation of the present invention comprises the following steps:
[0018] (1) Synthesis of negatively charged hydrophilic resin: add acrylic acid or methacrylic acid, emulsifier, chain transfer agent, and initiator to water, and carry out emulsion polymerization at 70-85°C for 30-90 minutes; then add hydroxy acrylate or methyl Hydroxyl acrylate, continue to polymerize for 20-50min; heat up to 90-95°C, add acrylate or methacrylate, initiator, polymerize for 30-90min; after polymerization is complete, after cooling down, add neutralizer to neutralize, neutralization degree 70-90% to obtain a negatively charged hydrophilic resin with a solid content of 15-30%; in parts by mass, the acrylic acid or methacrylic acid: hydroxy acrylate or hydroxy methacrylate: acrylate or methacrylate =1-6:0.5-6:1-5.5; the amount of water is 2-5 times of the total mass of polymerized monomers;
[0019] (2) Add berberine to the negatively charged ...
Embodiment 1
[0029] Synthesis of negatively charged hydrophilic resin: In a 250mL round bottom flask equipped with a stirring bar and a reflux device, add 30mL of water, 0.3g of polyethylene glycol lauryl ether, 0.2g of polyethylene glycol laurate, 6g of acrylic acid, 1 g of isopropanol and 0.02 g of potassium persulfate were stirred and heated to 75° C. for 1 h of polymerization. Add 6 g of hydroxyethyl acrylate and continue polymerization for 0.5 h. Then the temperature was raised to 90°C, 5 g of butyl acrylate was added, 10 mL of an aqueous solution containing 0.01 g of potassium persulfate was added, and polymerization was carried out for 1 h. The temperature was lowered to room temperature, and 13.5 g of an aqueous solution containing 3.5 g of potassium hydroxide was added dropwise with stirring to obtain a viscous negatively charged hydrophilic resin.
Embodiment 2
[0031] Synthesis of negatively charged hydrophilic resin: In a 250mL round bottom flask equipped with a stirring bar and a reflux device, add 30mL of water, 0.5g of polyethylene glycol laurate, 6g of methacrylic acid, 1g of isopropanol, and potassium persulfate 0.02g, stirred and heated to 80°C for 1h polymerization. Add 6 g of hydroxyethyl methacrylate and continue polymerization for 0.5 h. Then the temperature was raised to 90°C, 5 g of butyl methacrylate was added, 10 mL of a solution containing 0.01 g of ammonium persulfate was added, and polymerization was carried out for 1 h. The temperature was lowered to room temperature, and 13.3 g of a solution containing 3.3 g of potassium hydroxide was added dropwise with stirring to obtain a viscous negatively charged hydrophilic resin.
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