Loaded micropeptide nano liposome and preparation, application and use method thereof
A nano-liposome and liposome technology, which is applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations and other directions, can solve the problems of encapsulating macromolecular bioactive substances, poor stability of micropeptides, and low bioavailability, etc. To achieve the effect of preventing the reduction of the encapsulation rate, reducing the activity, and simplifying the reaction process
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[0037] The preparation method of the micropeptide in the present invention comprises the following steps: crushing the animal submandibular gland tissue, adjusting its pH value to weak acidity, and stirring to obtain a homogenate; thawing the homogenate after freezing, and centrifuging; After liquid filtration and ultrafiltration, the micropeptide essence is obtained, and then the micropeptide dry powder is obtained after vacuum drying.
[0038] In the present invention, lecithin and cholesterol are used to prepare the liposome membrane, the lecithin makes the liposome have a lower phase transition temperature, and the cholesterol makes the liposome have good fluidity and low viscosity.
Embodiment 1
[0041] (1) Add 150 parts of lecithin and 30 parts of cholesterol into the rotary evaporating flask, then add 3 times the amount of lecithin and chloroform of the total amount of cholesterol in the rotary evaporating flask, stir and dissolve, stir for 1 to 2 hours and then evaporate under reduced pressure, Until chloroform is fully reclaimed, the liposome membrane is obtained;
[0042] (2) dissolving the liposome membrane in ether, and using microwaves to make a single-chamber liposome solution A with an average particle diameter of 40-400 nm;
[0043](3) Add heavy distilled deionized water to 30 parts of micropeptides, then add 30 parts of Gynostemma pentaphyllum extract and 1 part of sodium hyaluronate, stir and mix evenly to make composite micropeptide solution B, and slowly dissolve composite micropeptide solution B Add to single-chamber liposome solution A, add butanediol and propylene glycol at the same time, mix evenly, hydrate at 40-50°C for 1-2 hours, cool down to -20°...
Embodiment 2
[0049] (1) Add 200 parts of lecithin and 60 parts of cholesterol into a rotary evaporator, then add 3 times the amount of chloroform of the total amount of raw materials into the rotary evaporator and stir to dissolve, stir for 1 to 2 hours and then evaporate under reduced pressure until the chloroform is completely recovered , making liposome membrane;
[0050] (2) dissolving the liposome membrane in ether, and using microwaves to make a single-chamber liposome solution A with an average particle diameter of 40-400 nm;
[0051] (3) Add heavy distilled deionized water to 50 parts of oligopeptides, then add 50 parts of Gynostemma pentaphyllum extract and 10 parts of sodium hyaluronate, stir and mix evenly to make composite oligopeptide solution B, and slowly dissolve composite oligopeptide solution B Add to single-chamber liposome solution A, add butanediol and propylene glycol at the same time, mix evenly, hydrate at 40-50°C for 1-2 hours, cool down to -20°C--10°C for freezing...
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