A method of using wine lees to prepare facial mask and a facial mask obtained according to the method
A technology of wine grains and facial masks, which is applied in cosmetic preparations, pharmaceutical formulas, cosmetic preparations, etc., can solve problems such as odor and environmental pollution, and achieve the effects of low production cost, low price, and simple preparation process
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Embodiment 1
[0031] A method for preparing facial mask by using wine grains, the steps are as follows:
[0032] The raw wine grains were placed in a vacuum drying oven and dried in vacuum at 35° C. for 2 hours to remove volatile substances (alcohols and aldehydes) in the wine grains. Add a cellulase aqueous solution with a concentration of 0.05 mg / mL to the raw material dried under reduced pressure at a ratio of 1:5 to the material to liquid, and perform enzymatic hydrolysis at pH 5.0 and temperature 45°C for 2 h. Add 5 times the volume of 60% ethanol, adjust the pH to 1.0 with 0.2 mol / L hydrochloric acid, and extract in a water bath at 40°C for 2 hours. Then at 4200rpm, centrifuge for 15min, collect the supernatant, concentrate under reduced pressure at 35°C, freeze-dry the concentrated solution to obtain anthocyanin extract.
[0033] Add 2 times the volume of 0.2mol / L hydrochloric acid to the precipitate obtained by centrifugation, mix well, heat at 90°C for 40min, suction filter while ...
Embodiment 2
[0037] A method for preparing facial mask by using wine grains, the steps are as follows:
[0038]The raw wine grains were placed in a vacuum drying oven and dried in vacuum at 40° C. for 3 hours to remove volatile substances (alcohols and aldehydes) in the wine grains. Add a cellulase aqueous solution with a concentration of 0.08 mg / mL to the raw material dried under reduced pressure at a material-to-liquid ratio of 1:10, and perform enzymatic hydrolysis at pH 4.0 and temperature 40°C for 8 hours. Add 8 times the volume of 40% ethanol to the raw material after enzymolysis, adjust the pH value to 1.0 with 0.3 mol / L hydrochloric acid, and extract in a water bath at 35° C. for 3 hours. Then at 4500rpm, centrifuge for 20min, collect the supernatant, concentrate under reduced pressure at 40°C, freeze-dry the concentrated solution to obtain anthocyanin extract.
[0039] Add 5 times the volume of 0.1mol / L hydrochloric acid to the precipitate obtained by centrifugation, mix well, he...
Embodiment 3
[0043] A method for preparing facial mask by using wine grains, the steps are as follows:
[0044] The raw wine grains were placed in a vacuum drying oven and dried in vacuum at 38° C. for 2.5 hours to remove volatile substances (alcohols and aldehydes) in the wine grains. Add a cellulase aqueous solution with a concentration of 0.07 mg / mL to the raw material dried under reduced pressure at a ratio of 1:7 to the material, and perform enzymatic hydrolysis at pH 5.2 and temperature 43°C for 4 hours. Add 7 times the volume of 50% ethanol to the raw material after enzymolysis, adjust the pH value to 1.0 with 0.2mol / L hydrochloric acid, and extract in a water bath at 40°C for 2.5h. Then at 4000rpm, centrifuge for 15min, collect the supernatant, concentrate under reduced pressure at 38°C, freeze-dry the concentrated solution to obtain anthocyanin extract.
[0045] Add 4 times the volume of 0.3mol / L hydrochloric acid to the precipitate obtained by centrifugation, mix well, heat at 8...
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