Composition with effects of skin whitening, sun screening and skin caring and preparation method and application thereof
A skin care composition and a whitening technology, which can be used in skin care preparations, drug combinations, skin diseases, etc., can solve the problems of insecurity, high cost, poor whitening and sunscreen effect, etc., and can reduce irritation and inhibit tyrosinase activity. And, the effect of eliminating edema
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Embodiment 1
[0043] (1) 12 parts by mass of Evodia rutaecarpa, 7 parts by mass of witch hazel, 10 parts by mass of motherwort and 6 parts by mass of Bletilla striata were dried and pulverized through a 20-mesh sieve to obtain coarse powder of Evodia rutaecarpa, coarse powder of witch hazel, coarse powder of motherwort and bletilla striata meal;
[0044] (2) Mix the coarse powder of Evodia rutaecarpa, the coarse powder of witch hazel and the coarse powder of motherwort, and place in supercritical CO 2 In the extraction kettle, the CO 2 Supercritical fluid extraction; wherein, the extraction temperature is 45°C, the extraction pressure is 35Mpa, the extraction time is 2.5h, CO 2 The flow rate is 16L / h, the separation temperature is 50°C, and the separation pressure is 7Mpa; extract 1 is obtained;
[0045] (3) Place the plant residue after step (2) extraction in supercritical CO 2 In the extraction kettle, carry out secondary CO 2 Supercritical fluid extraction; wherein, ethanol with a vo...
Embodiment 2
[0050] (1) 10 parts by mass of Evodia rutaecarpa, 5 parts by mass of witch hazel, 9 parts by mass of motherwort and 4 parts by mass of bletilla striata were dried and crushed through a 40-mesh sieve to obtain coarse powder of Evodia rutaecarpa, coarse powder of witch hazel, coarse powder of motherwort and bletilla striata meal;
[0051] (2) Mix the coarse powder of Evodia rutaecarpa, the coarse powder of witch hazel and the coarse powder of motherwort, and place in supercritical CO 2 In the extraction kettle, the CO 2 Supercritical fluid extraction; wherein, the extraction temperature is 40°C, the extraction pressure is 40Mpa, the extraction time is 3h, CO 2 The flow rate is 20L / h, the separation temperature is 45°C, and the separation pressure is 10Mpa; extract 1 is obtained;
[0052] (3) Place the plant residue after step (2) extraction in supercritical CO 2 In the extraction kettle, carry out secondary CO 2 Supercritical fluid extraction; wherein, the volume fraction is...
Embodiment 3
[0057] (1) 15 parts by mass of Evodia rutaecarpa, 9 parts by mass of witch hazel, 12 parts by mass of motherwort and 9 parts by mass of bletilla striata were dried and pulverized through a 10-mesh sieve to obtain coarse powder of Evodia rutaecarpa, coarse powder of witch hazel, coarse powder of motherwort and bletilla striata meal;
[0058] (2) Mix the coarse powder of Evodia rutaecarpa, the coarse powder of witch hazel and the coarse powder of motherwort, and place in supercritical CO 2 In the extraction kettle, the CO 2 Supercritical fluid extraction; wherein, the extraction temperature is 50°C, the extraction pressure is 30Mpa, the extraction time is 2h, CO 2 The flow rate is 15L / h, the separation temperature is 50°C, and the separation pressure is 5Mpa; extract 1 is obtained;
[0059] (3) Place the plant residue after step (2) extraction in supercritical CO 2 In the extraction kettle, carry out secondary CO 2 Supercritical fluid extraction; wherein, ethanol with a volu...
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