Herb medicine composition contg. Touhualiao (polygonaceae), prepn. method and use thereof
A composition and technology of Polygonum cephalus, which are applied in the field of medicine to achieve the effects of shortening bleeding time, improving dilation state and promoting metabolic function
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Embodiment 1
[0154] Example 1 Preparation and Content Determination of Polygonum cephalum Extract
[0155] Preparation of Polygonum cephalica Extract
[0156] Take 10kg Polygonum cephalum, chop it, add water and decoct twice, 2 hours each time, combine the decoction, filter, and concentrate the filtrate under reduced pressure to a relative density of 1.10-1.15, let it cool, add ethanol to make the alcohol content to 60% , refrigerated for 24 hours, filtered, recovered ethanol from the filtrate until almost no alcohol smell, added to the treated polyamide column (1000g, 30-60 mesh, column inner diameter 3mm, wet-packed with ethanol, pre-washed with appropriate amount of ethanol, and then used Wash with water until there is no alcohol smell, and then wash with 2 times the column volume of water, then wash with 2 times the column volume of 10% ethanol, discard the washing solution, and then use 3 times the column volume for elution with 70% ethanol, The eluent is collected, ethanol is recove...
Embodiment 2
[0165] Example 2 Preparation and Content Determination of Imperata Rhizome Extract
[0166] Preparation of Imperata Rhizome Extract
[0167] Take 10kg of Imperatae Rhizome, add water and reflux to extract twice, each extraction for 2 hours, add 10 times the amount of water, combine the extracts, filter, and concentrate the filtrate under reduced pressure to a relative density of 1.15-1.20, pass through the treated macroporous resin column, Wash the column with 2 times the amount of water first, then elute with 60% ethanol, collect the eluate, recover the ethanol under reduced pressure, concentrate, and dry in vacuo to obtain the product.
[0168] Three batches of Imperata rhizome extracts were prepared respectively, and the yields are shown in Table 2-2.
[0169] Content Determination of Imperata Rhizome Extract
[0170] Determination of the content of total phenolic substances
[0171] Determination method is the same as "the content determination of total flavonoids" in E...
Embodiment 3
[0174] Example 3 Preparation and content determination of thistle extract
[0175] Preparation of thistle extract
[0176] Get 10kg of Imperatae Rhizome, add 75% ethanol to heat and reflux twice, extract 2 hours each time, add 8 times the amount of alcohol, combine the extracts, filter, and the filtrate reclaims ethanol and concentrates to an appropriate amount (equivalent to 1 / 2 of the amount of medicinal material). ), add the same amount of petroleum ether and shake and extract 3 times, discard the petroleum ether liquid, evaporate the petroleum ether with water, add it to the treated polyamide column (14-30 mesh, ethanol wet packing, first use ethanol Wash, and then rinse with water until there is no alcohol smell, set aside), first rinse with 2 times the amount of water, then rinse with 2 times the amount of 10% ethanol, and finally elute with 95% ethanol, collect the eluate, recover the ethanol and decompress Concentrate, dry in vacuum, and crush to get it.
[0177] Thr...
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