A kind of facial mask containing Kushen blue extract and preparation method thereof
The technology of extract and blueberry is applied in the field of facial mask containing the extract of blueberry and its preparation, which can solve the problems of excessive heavy metals, facial skin allergy and the like, and achieve the effects of simple preparation method and wide source of raw materials.
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Embodiment 1
[0043] Preparation of bitter blue extract
[0044] a). Putting 20kg of 40-mesh bittern blue leaf powder into 40kg of ethanol solution with a volume concentration of 60% and soaking it for 2 days, obtaining the extract after filtration, repeating the extraction twice, and combining the extracts for ultrafiltration, Among them, the ultrafiltration membrane with a specification of 5000D is used in the ultrafiltration, and the obtained extract is placed in a rotary evaporator for concentration under reduced pressure to obtain 4 kg of extract;
[0045] b). Dissolve the 4kg extract obtained in step a) with 2kg ethanol and then absorb to saturation through the small-pore resin column, wash the small-pore resin column with water until the effluent is clear, then elute with 8kg ethanol to colorless, and obtain the washed dehydration, wherein, ethanol is absolute ethanol;
[0046] c). Concentrate the eluate obtained in step b) under reduced pressure until the remaining liquid is in the...
Embodiment 2
[0048] Preparation of bitter blue extract
[0049] a). Putting 20kg specification of 50 mesh bitter blue leaf powder into 60kg of ethanol solution with a volume concentration of 60% and soaking it for 3 days, obtaining the extract after filtration, repeating the extraction twice, and combining the extract for ultrafiltration, Among them, the ultrafiltration membrane with a specification of 5000D is used in the ultrafiltration, and the obtained extract is placed in a rotary evaporator for concentration under reduced pressure to obtain 8 kg of extract;
[0050] b). Dissolve the 8 kg extract obtained in step a) with 4 kg of ethanol and then absorb to saturation through the small-pore resin column, wash the small-pore resin column with water until the effluent is clear, and then elute with 16 kg of ethanol until colorless, and obtain the washed dehydration, wherein, ethanol is absolute ethanol;
[0051] c). Concentrate the eluate obtained in step b) under reduced pressure until t...
Embodiment 3
[0053] Preparation of bitter blue extract
[0054] a). Putting 20kg specification of 60 mesh bitter blue leaf powder into 80kg of ethanol solution with a volume concentration of 60% and soaking it for 4 days, obtaining the extract after filtration, repeating the extraction twice, and combining the extract for ultrafiltration, Among them, the ultrafiltration membrane with a specification of 5000D is used in the ultrafiltration, and the obtained extract is placed in a rotary evaporator for concentration under reduced pressure to obtain 10 kg of extract;
[0055] b). Dissolve the 10kg extract obtained in step a) with 5kg of ethanol and then adsorb to saturation through the small-pore resin column, wash the small-pore resin column with water until the effluent is clear, then elute with 20kg of ethanol until colorless, and obtain the washed dehydration, wherein, ethanol is absolute ethanol;
[0056] c). Concentrate the eluate obtained in step b) under reduced pressure until the re...
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