Chinese lizardtail rhizome or herb rootstock total effective fraction and preparation method and application thereof
A kind of technology of effective parts and grass rhizomes, applied in the field of traditional Chinese medicine extracts and preparations thereof
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Embodiment 1
[0062] Example 1: Preparation of the Extract of the Total Effective Parts of Rhizome of Sanbaicao
[0063] 1000g of rhizome of Sanbaicao, add 8L of methanol after crushing, heat and reflux for extraction for 1.5 hours, add 6 liters of methanol to the filter residue, heat and reflux for extraction for 1 hour, and filter. The two filtrates were combined and concentrated in vacuo to obtain 87 g of extract. Dissolve the extract with 2L of hot water, then extract 4 times with an equal volume of ethyl acetate, extract the extract after recovering the ethyl acetate under reduced pressure, and obtain the extract, vacuum it into a dry powder, and obtain 22g of the total effective parts of the rhizome of Sanbaicao Extract A, the sum of total lignans and total fatty acids contained in it is 90% of the total weight of the total effective parts extract (wherein total lignans account for 57%, and total fatty acids account for 33%).
Embodiment 2
[0064] Example 2: Preparation of the Extract of the Total Effective Parts of Rhizome of Sanbaicao
[0065] 1000g of rhizome of Sanbaicao, crushed, add 8L of 90% ethanol solution, extract by heating and reflux for 1.5 hours, add 6 liters of 70% ethanol solution to the filter residue, extract by heating and reflux for 1 hour, and filter. The two filtrates were combined and concentrated until there was no alcohol smell. Add an appropriate amount of water to the concentrated solution and extract it with an equal volume of ethyl acetate for 4 times. After the extract is decompressed and recovered ethyl acetate, the extract is obtained, and vacuumized into a dry powder to obtain 30 g of the total effective part extract B , the sum of total lignans and total fatty acids contained in it is 62% of the total weight of the total effective parts extract (wherein total lignans account for 39%, and total fatty acids account for 23%).
Embodiment 3
[0066] Example 3: Preparation of the Extract of the Total Effective Parts of Rhizome of Sanbaicao
[0067] 1000g rhizome of Sanbaicao, add 8L of 70% ethanol solution after crushing, heat and reflux for extraction for 1.5 hours, add 6 liters of 50% ethanol solution to the filter residue, heat and reflux for extraction for 1 hour, and filter. The two filtrates were combined and concentrated until there was no alcohol smell. Add appropriate amount of water to the concentrated solution and extract it with an equal volume of ethyl acetate for 4 times. After the extract is decompressed and recovered ethyl acetate, the extract is obtained, and vacuumized into dry powder to obtain 43g of the total effective part extract of Rhizome of Rhizoma chinensis C. , the sum of total lignans and total fatty acids contained in it is 40% of the total weight of the total effective part extract (wherein total lignans account for 24%, and total fatty acids account for 16%).
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