Separation process of natural free radical scavenger in Saxifraga tangutica and application of natural free radical scavenger
A Tanggut tiger ear and free radical technology, which is used in the separation/purification, application, and medical preparations containing active ingredients of carboxylic acid compounds, etc. See literature reports and other issues to achieve the effect of being suitable for large-scale production, easy to prepare materials in batches, and easy to scale
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Embodiment 1
[0053] The separation process of natural free radical scavenger in saxifrage tangutata, the method specifically comprises the following steps:
[0054] Step 1, extraction: Take 500g of the whole herb of Saxifrage tanguticae and dry it in the shade. After coarse crushing, extract with methanol at a material-to-liquid ratio of 1g: 5mL, extract at room temperature 4 times, each time for 2 hours, filter and combine the filtrates, namely filtrate A , the filtrate A is mixed according to the amount of polyamide: the amount of saxifrage medicinal material = 1:5 and then dried under reduced pressure. Ear grass extract mixed sample 160.2g;
[0055] Step 2, coarse separation of microporous resin column: sample mixed with saxifrage extract of Tangutia tanguticae, the sample is separated by a medium-pressure chromatographic column equipped with microporous resin, detected by an ultraviolet detector with a detection wavelength of 254 nm, collected and prepared The first major peak fractio...
Embodiment 2
[0062] The separation process of natural free radical scavenger in saxifrage tangutata, the method specifically comprises the following steps:
[0063] Step 1, extraction: take 1000g of the whole herb of Saxifraga saxifrage, dry it in the shade, coarsely crush it, extract it according to the ratio of solid to liquid: 1g: 100mL of methanol, extract twice at room temperature, each time for 4 hours, filter and combine the filtrates, namely filtrate A , the filtrate A is mixed according to the amount of polyamide: the amount of saxifrage medicinal material of Tangutia saxifrage = 1:5 and then dried under reduced pressure. Ear grass extract mixed sample 719.3g;
[0064]Step 2, coarse separation of microporous resin column: sample mixed with saxifrage extract of Tangutia tanguticae, the sample is separated by a medium-pressure chromatographic column equipped with microporous resin, detected by an ultraviolet detector with a detection wavelength of 254 nm, collected and prepared The...
Embodiment 3
[0071] The separation process of natural free radical scavenger in saxifrage tangutata, the method specifically comprises the following steps:
[0072] Step 1, extraction: take 1200g of the whole saxifrage saxifrage herb, dry it in the shade, coarsely crush it, extract it with methanol at a solid-to-liquid ratio of 1g: 100mL, extract twice at room temperature, 4 hours each time, filter and combine the filtrates, namely filtrate A , the filtrate A is mixed according to the amount of polyamide: the amount of saxifrage medicinal material = 1:5 and then dried under reduced pressure. Ear grass extract mixed sample 863.7g;
[0073] Step 2, coarse separation of microporous resin column: sample mixed with saxifrage extract of Tangutia tanguticae, the sample is separated by a medium-pressure chromatographic column equipped with microporous resin, detected by an ultraviolet detector with a detection wavelength of 254 nm, collected and prepared The first main chromatographic peak fracti...
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