Method for separating and purifying effective ingredients from fine felt hairy honeysuckle
A technology for separation and purification of hydroxyl, applied in the field of separation and purification of active ingredients in Lonicera velvet, to achieve the effects of improving utilization, saving separation and purification costs, and saving reagent consumption
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Embodiment 1
[0063] Example 1 Separation and purification method of 5-hydroxy-7,3',4'-trimethoxyflavone
[0064] (1) Weigh 1.9Kg of dried flower buds of Lonicera similes Hemsl, reflux extract with 90%, 80%, 70% ethanol, the material ratio is 1:8, filter, recover ethanol under reduced pressure, and obtain extract. After determination, the extract contains 3.39% of total flavonoids.
[0065] (2) Take the above extract, add water to prepare the upper column solution, the concentration of the upper column solution is 0.10g / ml in terms of crude drug, put it on the macroporous adsorption resin column, and use water in turn, the concentration is 10%, 20%, 40%, 60% , 80%, 95% V / V ethanol elution, collect 95% ethanol part;
[0066] (3) Take the obtained ethanol fraction, recover the solvent, and perform silica gel column chromatography (200-300 mesh, 350g, column volume 925ml), use cyclohexane-ethyl acetate=20:1~0:1, ethyl acetate -Methanol=5:1~0:1 system for gradient elution, each fraction is 15...
Embodiment 2
[0085] The separation and purification method of embodiment 2 β-sitosterol
[0086] (1) Weigh 475g of dried flower buds of Lonicera similes Hemsl, extract with 90%, 80%, and 70% ethanol under reflux, the material ratio is 1:8, filter, recover ethanol under reduced pressure, and obtain 95g of extract, (That is, 1g of extract is equivalent to 5g of crude drug). After determination, the extract contains 3.39% of total flavonoids.
[0087] (2) Take the above extract, add water to prepare the upper column solution, the concentration of the upper column solution is 0.10g / ml in terms of crude drug, put it on the macroporous adsorption resin column, and use water in turn, the concentration is 10%, 20%, 40%, 60% , 80%, 95% V / V ethanol elution, collect 95% ethanol part;
[0088](3) Take the obtained ethanol part, recover the solvent, and perform silica gel column chromatography (200-300 mesh, 350g), use cyclohexane-ethyl acetate=20:1~0:1, ethyl acetate-methanol=5 : 1~0:1 system for g...
Embodiment 3
[0095] Example 3 The separation and purification method of β-carotin
[0096] (1) Weigh 475g of dried flower buds of Lonicera similes Hemsl, extract with 90%, 80%, and 70% ethanol under reflux, the material ratio is 1:8, filter, recover ethanol under reduced pressure, and obtain 95g of extract, (That is, 1g of extract is equivalent to 5g of crude drug). After determination, the extract contains 3.39% of total flavonoids.
[0097] (2) Take the above extract, add water to prepare the upper column solution, the concentration of the upper column solution is 0.10g / ml in terms of crude drug, put it on the macroporous adsorption resin column, and use water in turn, the concentration is 10%, 20%, 40%, 60% , 80%, 95% V / V ethanol elution, collect 95% ethanol part;
[0098] (3) Take the obtained ethanol part, recover the solvent, and perform silica gel column chromatography (200-300 mesh, 350g), use cyclohexane-ethyl acetate=20:1~0:1, ethyl acetate-methanol=5 : 1~0:1 system for gradie...
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