Preparation and use of Linaria vulgaris flavone and total flavone thereof
A technology of total flavonoids and fish flavonoids is applied in the field of medicine and achieves the effects of simple extraction method, environmental protection and content improvement.
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Embodiment 1
[0027] Embodiment 1, the preparation of total flavonoids of willow piercing fish
[0028] Dried the harvested willow chrysalis and cut into sections. Add 10 times the crude drug amount of 90% ethanol to the obtained willow chutney and reflux extract it for 3 times, each extraction time is 1.5h, collect the extract, filter, The obtained filtrate is concentrated and dried to obtain the extract of the willow fish, and the obtained extract is loaded on the HPD-600 type macroporous resin with 0.5g / ml, and the sample loading flow rate is 3BV / h, and the column diameter-to-height ratio is 1: 5. Elute with 90% ethanol solution. The eluate is filtered, and the filtrates are combined, concentrated, dried, and pulverized to obtain the total flavonoids of the willow fish. The total flavonoids of the chrysalis of the present invention is a yellow-brown powder, and the absorptivity is measured at 280nm by spectrophotometry, and the content of the total flavonoids is calculated to be 66.8%. ...
Embodiment 2
[0029] Embodiment 2, the preparation of total flavonoids of willow piercing fish
[0030] Dried the harvested willow chrysalis and cut into sections, adding 8 times the crude drug amount of 80% ethanol to the obtained willow chutney crude drug for reflux extraction twice, each extraction time was 1 hour, collected the extract, filtered, and obtained The filtrate is concentrated and dried to obtain the extract of the willow fish, and the obtained extract is loaded on the HPD-600 type macroporous resin with 0.4g / ml, and the flow rate of the sample is 3BV / h, and the column diameter-to-height ratio is 1:3 , and eluted with 90% ethanol solution. The eluate is filtered, and the filtrates are combined, concentrated, dried, and pulverized to obtain the total flavonoids of the willow fish. The total flavonoids of the chrysalis of the present invention is a yellow-brown powder, and the absorptivity is measured at 280nm by spectrophotometry, and the content of the total flavonoids is ca...
Embodiment 3
[0031] Embodiment 3, the preparation of the total flavonoids of willow fish
[0032] Dried the harvested willow chrysalis and cut into sections. Add 12 times the crude drug amount of 70% ethanol to the obtained willow chutney and reflux extract it for 3 times, each extraction time is 0.5h, collect the extract, filter, The obtained filtrate was concentrated and dried to obtain the extract of Liu Chuanyu. The obtained extract was loaded on HPD-600 macroporous resin at 0.4 g / ml, the sample loading flow rate was 3BV / h, and the column diameter-to-height ratio was 1: 3. Elute with 90% ethanol solution. The eluate is filtered, and the filtrates are combined, concentrated, dried, and pulverized to obtain the total flavonoids of the willow fish. The total flavonoids of the chrysalis of the present invention is a yellow-brown powder, and the absorptivity is measured at 280nm by spectrophotometry, and the content of the total flavonoids is calculated to be 60.8%.
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