Method for extracting, separating and preparing lignin monomers from schisandra chinensis
A technology of schisandra and lignans, applied in the field of natural medicinal chemistry, to achieve the effect of simple extraction steps, high product purity, and technological innovation and improvement
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Embodiment 1
[0050] Embodiment 1: supercritical fluid extraction
[0051] Take the fruit of Schisandra chinensis and crush it to get Schisandra medicinal material powder with a particle size of 50-65 mesh. Take 2 g of Schisandra medicinal material powder and put it into a supercritical fluid extraction tank. The extraction temperature is 40 °C, the extraction pressure is 25 MPa, CO 2 The flow rate is 2L / min, the extraction time is 1h, and the crude extract of Schisandra chinensis is obtained. Taking Schisandrin A as a representative, the calculated extraction rate is 0.5294%.
Embodiment 2
[0052] Embodiment 2: supercritical fluid extraction
[0053] Take the fruit of Schisandra chinensis and crush it to obtain the powder of Schisandra chinensis medicinal material with a particle size of 10-20 meshes. Take 3g of the medicinal material powder of Schisandra chinensis and put it into a supercritical fluid extraction tank. The extraction temperature is 35°C, the extraction pressure is 14MPa, CO 2 The flow rate is 2L / min, the extraction time is 2h, and the crude extract of Schisandra chinensis is obtained. Taking Schisandrin A as a representative, the calculated extraction rate is 0.3926%.
Embodiment 3
[0054] Embodiment 3: supercritical fluid extraction
[0055] Take the fruit of Schisandra chinensis and pulverize it to obtain the medicinal material powder of Schisandra chinensis. The particle size is 50-65 meshes. Take 3g of the medicinal material powder of Schisandra chinensis and put it into a supercritical fluid extraction tank. The extraction temperature is 35°C, the extraction pressure is 30MPa, CO 2 The flow rate is 2L / min, the extraction time is 2h, and the crude extract of Schisandra chinensis is obtained. Taking Schisandrin A as a representative, the calculated extraction rate is 0.6001%.
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