Apocynum venetum extract and preparation method thereof, and anti-ultraviolet anti-oxidation whitening cosmetic and preparation method thereof
A technology of apocynum extract and whitening cosmetics, applied in the field of cosmetics, can solve the problems of single active ingredient and single skin care effect, and achieve the effects of protecting the skin, isolating stimulation, and inhibiting the formation of melanin
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[0032] The present invention also provides the preparation method of the apocynum extract described in the above technical scheme, comprising the following steps:
[0033] Ultrasonic extraction of Apocynum leaves to obtain the primary extract;
[0034] Distilling the primary extract to obtain Apocynum essential oil and extract;
[0035] The extract is filtered and extracted with alcohol to obtain Apocynum polysaccharide.
[0036] In the present invention, the leaves of the apocynum are ultrasonically extracted to obtain primary extracts. In the present invention, the method of ultrasonic extraction is preferably to add Apocynum leaves into water for ultrasonic extraction after crushing; the mass ratio of Apocynum leaves to water is 1:10~30, more preferably 1:12~28 , more preferably 1:15-25. In the present invention, the power of the ultrasonic extraction is preferably 200-300W, more preferably 210-290W, more preferably 220-280W; in an embodiment of the present invention, th...
Embodiment 1
[0068] Apocynum leaves were crushed and added to deionized water, the mass ratio of Apocynum leaves to water was 1:20, and the primary extract was obtained by ultrasonication for 90 min under the conditions of ultrasonic power of 250W and temperature of 60°C.
[0069] The primary extract is steam distilled for 4 hours, the collected volatile oil is the Apocynum essential oil, and the remaining base liquid is the extract, and the extraction rate of the Apocynum essential oil is 0.12-0.14%.
[0070] Filter the extract while it is hot, take the supernatant, carry out vacuum distillation and concentrate to 1 / 5 of the volume of the supernatant to obtain a concentrated solution, add 95% ethanol that is 4 times the volume of the concentrated solution, let it stand for 24 hours, and then centrifuge to obtain The precipitation is Apocynum polysaccharide.
[0071] Apocynum polysaccharide is configured into a solution with a mass concentration of 6%, adding 3wt.% papain; heating in a wat...
Embodiment 2
[0073] Get the obtained Apocynum polysaccharide and Apocynum essential oil obtained in Example 1 to prepare anti-ultraviolet and antioxidant whitening cosmetics, and prepare materials according to the following formula components: 5% stearic acid, 2.5% stearyl alcohol, 1.5% isopropyl palmitate, 5% vaseline %, white oil 4%, silicone oil 5%, vitamin E 1%, apocynum essential oil 2%, emulsifier 2%, propylene glycol 3%, apocynum polysaccharide 5%, nano titanium dioxide 3%, triethanolamine 1%, phenoxy 0.5% ethanol, and the balance is deionized water.
[0074]Mix stearic acid, stearyl alcohol, isopropyl palmitate and petrolatum, stir well at 65°C; add white oil, silicone oil, vitamin E and emulsifier, stir at 90°C for 25min, then cool down to 70°C Obtain an oil phase system; disperse propylene glycol, nano-titanium dioxide and apocynum polysaccharide in water, and stir evenly at 50°C; raise the temperature to 70°C and add triethanolamine to obtain an aqueous phase system.
[0075] M...
PUM
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