Premna microphylla pectin mask liquid and preparation method thereof
A technology of bean curd and facial mask liquid, which is applied in the field of skin care products, can solve the problem of short-term water replenishment, and achieve the effect of increasing content, strong anti-oxidation, and good anti-oxidation
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Embodiment 1
[0031] A preparation method of tofu chai pectin facial mask liquid, comprising the following steps:
[0032] 1) Extraction of tofu chai pectin polysaccharide: Take 10g of tofu chai dry powder, add 400g of ammonium oxalate solution with a concentration of 6g / L, and extract after stirring with an ultrasonic cell breaker. The ultrasonic time is 10min, and the ultrasonic power is 375W; at 3000r / L Centrifuge at a speed of 10 min for 10 min, and separate by suction filtration to obtain the pectin polysaccharide extract of Tofu Chai; after concentrating the extract by a rotary evaporator, add absolute ethanol at a volume ratio of 1:1, and place it at 4°C for 11 h; then The precipitate was washed with ultrapure water and freeze-dried to obtain freeze-dried powder of tofu chai pectin polysaccharide;
[0033] 2) Extraction of Tofu Chai flavonoids: Take 10g of Tofu Chai dry powder, add 500g of 65% ethanol solution, stir and use ultrasonic breaker to extract, ultrasonic time is 30min, ult...
Embodiment 2
[0037] A preparation method of tofu chai pectin facial mask liquid, comprising the following steps:
[0038] 1) Extraction of tofu chai pectin polysaccharide: take 10g of tofu chai dry powder, add 500g of ammonium oxalate solution with a concentration of 6g / L, and extract after stirring with an ultrasonic cell breaker. The ultrasonic time is 15min, and the ultrasonic power is 225W; at 3800r / L Centrifuge at a speed of 10 min for 10 min, and separate by suction filtration to obtain the pectin polysaccharide extract of Tofu Chai; after concentrating the extract by a rotary evaporator, add absolute ethanol at a volume ratio of 1:1, and place it at 4°C for 10 h; then The precipitate was washed with ultrapure water and freeze-dried to obtain freeze-dried powder of tofu chai pectin polysaccharide;
[0039]2) Extraction of Tofu Chai flavonoids: Take 10g of Tofu Chai dry powder, add 520g of 60% ethanol solution, stir and use ultrasonic breaker to extract, ultrasonic time is 20min, ultr...
Embodiment 3
[0043] A preparation method of tofu chai pectin facial mask liquid, comprising the following steps:
[0044] 1) Extraction of tofu chai pectin polysaccharide: take 10g of tofu chai dry powder, add 550g of ammonium oxalate solution with a concentration of 6g / L, and use an ultrasonic cell breaker to extract after stirring. The ultrasonic time is 12min, and the ultrasonic power is 525W; Centrifuge at a speed of 14min for 14min, and separate by suction filtration to obtain the pectin polysaccharide extract of Tofu Chai; after concentrating the extract by a rotary evaporator, add absolute ethanol at a volume ratio of 1:1, and place it at 4°C for 13h; then The precipitate was washed with ultrapure water and freeze-dried to obtain freeze-dried powder of tofu chai pectin polysaccharide;
[0045] 2) Extraction of Tofu Chai flavonoids: Take 10g of Tofu Chai dry powder, add 450g of 70% ethanol solution, stir and use ultrasonic breaker to extract, ultrasonic time is 25min, ultrasonic powe...
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