Hydrogel mask taking vinasse melanin and poplar bud general flavone as main raw materials and preparation method of hydrogel mask
A technology of hydrogel facial mask and distiller's grain protein, which is applied in the field of hydrogel facial mask and its preparation, can solve the problems of rough material, allergies of membrane cloth, non-adherence to the skin, etc., achieve satisfactory film-forming and stretchability, and reduce production Cost, increase the effect of economic benefits
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[0088] 1. Extraction of melanin from distiller's grains
[0089] Accurately weigh 20.00g of distiller's grain dry powder, put it in a 250mL conical flask, add solvents (ethanol of different concentrations or ultrapure water) and mix well, extract under different conditions, centrifuge at 3500r / min for 15min, and take the supernatant to be measured. Then select permeable membranes with different molecular weights for treatment, measure the hydroxyl radical scavenging rate of each molecular weight sample solution, and calculate the extraction rate of distiller's grain melanin according to the regression equation of the ascorbic acid standard curve.
[0090] Extraction rate of distiller's grain melanin (%)=C×V×100 / m In the formula, C is the ascorbic acid mass concentration (mg / mL) of melanin calculated according to the standard curve; V is the sample liquid volume (mL); m is the mass (g) of ascorbic acid when 1 g of distiller's grains is completely extracted.
[0091] Taking eth...
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