A kind of preparation method of emulsion with whitening and moisturizing effect
A whitening and efficacy technology, applied in medical preparations containing active ingredients, preparations for skin care, pharmaceutical formulations, etc., can solve the problems of single whitening mechanism, grainy feeling, inability to achieve full-effect whitening, etc., and achieve increased whitening effect. , the effect of stabilizing the emulsion
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Embodiment 1
[0031] Embodiment 1: Preparation of seaweed polysaccharide enzymatic hydrolysis product
[0032] 1. Seaweed polysaccharide extraction method: wash the seaweed, control the water, dry it in an oven at 60°C, and crush it. Take 1kg of algae powder, add 2L of 95% ethanol solution to soak and degrease, and let stand overnight. Take the degreased algae powder, add distilled water according to 1kg:10L solid-liquid ratio, and bathe in 95℃ water for 2h. After hot water extraction, cool and stand for 1 hour, then refrigerate and centrifuge for 10 minutes (10000 rpm, 4°C). The supernatant, that is, the crude polysaccharide extract was concentrated to 2 L by rotary evaporation, and 95% ethanol solution was added until the final volume fraction of ethanol was 30%, and stood overnight. The sample solution was refrigerated and centrifuged for 10 minutes (10,000 rpm, temperature 4°C), and the precipitate was taken, and a small amount of distilled water was added to dissolve the precipitate ...
Embodiment 2
[0035](1) Weigh 20 g of hydrogenated soybean oil (purchased from Wuhan Hezhong Biochemical Manufacturing Co., Ltd.), and heat to 85° C. to obtain liquid oil phase I;
[0036] (2) Weigh 4 g of arbutin (purchased from Xi’an Lvtian Biotechnology Co., Ltd.), 6 g of ascorbyl glucoside (purchased from Xi’an Wanfang Biotechnology Co., Ltd.), niacinamide according to a mass ratio of 4:6:1. (purchased from Henan Datang Chemical Co., Ltd.) 1g, the above three substances were mixed to obtain a composite whitening active substance;
[0037] (3) According to the mass ratio of composite whitening active substance: liquid oil phase I=0.30:1, weigh 6 g of composite whitening active substance and add it to the liquid oil phase I obtained in step (1), and mix evenly to obtain liquid oil phase II;
[0038] (4) Weigh 30 g of seaweed polysaccharide enzymatic hydrolysis product, 15 g of phospholipid and 150 g of distilled water according to the mass ratio of 0.2:0.1:1, heat to 75-85° C., and mix un...
Embodiment 3
[0041] (1) Weigh 15 g of hydrogenated soybean oil (purchased from Wuhan Hezhong Biochemical Manufacturing Co., Ltd.), and heat to 85° C. to obtain liquid oil phase I;
[0042] (2) Weigh 1 g of arbutin (purchased from Xi’an Lvtian Biotechnology Co., Ltd.), 1.5 g of ascorbyl glucoside (purchased from Xi’an Wanfang Biotechnology Co., Ltd.), tobacco Amide (purchased from Henan Datang Chemical Co., Ltd.) 0.5g, the above three substances are mixed to obtain a composite whitening active substance;
[0043] (3) According to the mass ratio of composite whitening active substance: liquid oil phase I=0.15:1, weigh 2.25 g of composite whitening active substance and add it to the liquid oil phase I obtained in step (1), and mix evenly to obtain liquid oil phase II;
[0044] (4) Weigh 12 g of seaweed polysaccharide enzymatic hydrolysis product, 7.5 g of phospholipid and 150 g of distilled water according to the mass ratio of 0.08:0.05:1, heat to 75-85°C, and mix evenly to obtain a liquid wa...
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