A kind of method for separating and preparing rutizin monomer
A kind of technology of phlox root and phlox, which is applied to the preparation of sugar derivatives, chemical instruments and methods, sugar derivatives, etc., can solve problems such as difficult high-purity or monomer phlorizin preparation, and achieve improved Effect of purification efficiency and purification fold
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Embodiment 1
[0021] Take Lithocarpus, bake at 55°C until the water content is lower than 6%, use edible ethanol with a mass concentration of 70% as the extraction solvent, and add Edible ethanol, and assisted extraction with 50HZ ultrasound for 40min, to get the extract.
[0022]Use a 0.2 μm microfiltration membrane to perform microfiltration and clarification of the above-mentioned Lithocarpus extract at 40°C and 0.25 MPa, and when the weight of the filtrate is 80% of the weight of the extract, add 20% of the weight of the extract to the extract. The pure water was dialyzed once, and the filtrate and dialysate were collected and combined to obtain a clear solution. The microfiltration clarified liquid is ultrafiltered with an ultrafiltration membrane with a molecular weight cut-off of 2500Da at 30°C and 1.5Mpa, and when the filtrate weighs 80% of the clarified liquid weight, add 20% of the clarified liquid weight to the clarified liquid Dialyze once with pure water, collect filtrate and ...
Embodiment 2
[0025] Take Lithocarpus, bake at 65°C until the water content is lower than 6%, use edible ethanol with a mass concentration of 80% as the extraction solvent, and add Edible ethanol was assisted by 50HZ ultrasonic extraction for 30min, and the extract was taken.
[0026] Use a 0.2 μm microfiltration membrane to perform microfiltration and clarification of the above-mentioned Lithocarpus extract at 50°C and 0.35 MPa, and when the weight of the filtrate is 90% of the weight of the extract, add 10% of the weight of the extract to the extract. The pure water was dialyzed once, and the filtrate and dialysate were collected and combined to obtain a clear solution. The microfiltration clarified liquid is ultrafiltered with an ultrafiltration membrane with a molecular weight cut-off of 2500Da at 40°C and 2.0 Mpa, and when the weight of the filtrate is 90% of the weight of the clarified liquid, 10% of the weight of the clarified liquid is added to the clarified liquid. Dialyze once wi...
Embodiment 3
[0029] Take Lithocarpus, bake at 60°C until the water content is lower than 6%, use edible ethanol with a mass concentration of 75% as the extraction solvent, and add Edible ethanol was assisted by 50HZ ultrasonic extraction for 35min, and the extract was taken.
[0030] Use a 0.2 μm microfiltration membrane to perform microfiltration and clarification of the above-mentioned Lithocarpus extract at 45°C and 0.30 MPa, and when the weight of the filtrate is 85% of the weight of the extract, add 15% of the weight of the extract to the extract. The pure water was dialyzed once, and the filtrate and dialysate were collected and combined to obtain a clear solution. The microfiltration clarified liquid is ultrafiltered with an ultrafiltration membrane with a molecular weight cut-off of 2500Da at 35°C and 1.75 MPa, and when the weight of the filtrate is 85% of the weight of the clarified liquid, 15% of the weight of the clarified liquid is added to the clarified liquid Dialyze once wi...
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