Anoectochilus roxburghiiv flavone extraction process and application thereof in skin care products
An extraction process and technology of lotus flavonoids are applied in the field of extraction process of flavonoids, which can solve the problems of low content of active components, a large amount of impurities, and low extraction rate, and achieve the effects of high content of active components, good antioxidant activity and few impurities.
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Embodiment 1
[0033] (1) Fresh clematis was beaten, freeze-dried and pulverized at freezing temperature -78°C, freezing time 48h, and vacuum pressure 20Pa to obtain clematis powder; weigh 3.00g of clematis powder, and in ultrasonic power of 600W, The ratio of solid to liquid is 1:150, the concentration of ethanol is 60%, the extraction time is 60 minutes, and the extraction temperature is 60°C, and the crude extract of flavonoids of Auranthus clematis is obtained;
[0034] (2) Filter the crude extract of Aureus flavonoids under the conditions of -0.1MPa vacuum, double-layer filter paper with a pore size of 15-20um, and then filter under the conditions of -0.1MPa vacuum, rotation speed 115rpm / min, evaporation temperature 45°C, and cycle condensation temperature Concentrating under reduced pressure at 2°C to obtain the crude extract of flavonoids from Auranthus clematis;
[0035] (3) Pass the crude extract of clematis flavonoids over Sephadex LH-20 gel column, the ratio of the column diameter...
Embodiment 2
[0037] (1) Fresh clematis was beaten, freeze-dried and pulverized at freezing temperature -70°C, freezing time 40h, and vacuum pressure 15Pa to obtain clematis powder; weigh 3.00g of clematis powder, microwave power 800W, The ratio of solid to liquid is 1:100, the concentration of ethanol is 50%, the extraction time is 40 minutes, and the extraction temperature is 40°C, so as to obtain the crude extract of the flavonoids of Auranthus chinensis;
[0038](2) Filter the crude extract of Aureus flavonoids under the conditions of -0.1MPa vacuum, double-layer filter paper with a pore size of 15-20um, and then filter under the conditions of -0.1MPa vacuum, rotation speed 115rpm / min, evaporation temperature 45°C, and cycle condensation temperature Concentrating under reduced pressure at 2°C to obtain the crude extract of flavonoids from Auranthus clematis;
[0039] (3) Pass the crude extract of clematis flavonoids over Sephadex LH-20 gel column, the ratio of the column diameter of the...
Embodiment 3
[0041] (1) Fresh clematis was beaten, freeze-dried and pulverized at freezing temperature -80°C, freezing time 60h, and vacuum pressure 25Pa to obtain clematis powder; weigh 3.00g clematis powder, and microwave at 400W, The ratio of solid to liquid is 1:200, the concentration of ethanol is 60%, the extraction time is 1200min, and the extraction temperature is 80°C, and the crude extract of flavonoids of Auranthus clematis is obtained;
[0042] (2) Filter the crude extract of Aureus flavonoids under the conditions of -0.1MPa vacuum, double-layer filter paper with a pore size of 15-20um, and then filter under the conditions of -0.1MPa vacuum, rotation speed 115rpm / min, evaporation temperature 45°C, and cycle condensation temperature Concentrating under reduced pressure under the condition of 2°C to obtain the crude extract of Aurantia chinensis flavonoids;
[0043] (3) Pass the crude extract of clematis flavonoids over Sephadex LH-20 gel column, the ratio of the column diameter ...
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