Effect section of frangrant ainsliaea herb, preparation method and application thereof
A technology of apricot-flavored rabbit ear wind and effective parts, which is applied in the field of effective parts of apricot-flavored rabbit ears and its preparation, and can solve the problems of high cost of drug treatment and insignificant effect
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Embodiment 1-1
[0027] A method for preparing the effective part of apricot-flavored rabbit ear wind, the preparation method comprises the following steps in sequence:
[0028] Step (1) Take the medicinal material of apricot and rabbit ear wind, add 10% ethanol to carry out percolation or heat reflux extraction, and obtain the extract A;
[0029] Step (2) Take the extract A, concentrate under reduced pressure to obtain the concentrate B;
[0030] Step (3) Take the concentrated solution B, extract it with petroleum ether and ethyl acetate in sequence, combine the extracts, concentrate under reduced pressure, and dry to obtain the effective part of apricot rabbit ear wind;
[0031] Or in step (3) take the concentrated solution B and absorb it on the macroporous adsorption resin, wash it with water until it is colorless or lighter in color, then elute it with 10% ethanol, collect the eluate, concentrate under reduced pressure, and dry to obtain apricot rabbit ear wind effective part.
Embodiment 1-2
[0033] A method for preparing the effective part of apricot-flavored rabbit ear wind, the preparation method comprises the following steps in sequence:
[0034] Step (1) take apricot and rabbit earwind medicinal material, add 80% ethanol to carry out percolation or heat reflux extraction, and obtain the extract A;
[0035] Step (2) Take the extract A, concentrate under reduced pressure to obtain the concentrate B;
[0036] Step (3) Take the concentrated solution B, extract it with petroleum ether and ethyl acetate in sequence, combine the extracts, concentrate under reduced pressure, and dry to obtain the effective part of apricot rabbit ear wind;
[0037] Or step (3) take the concentrated solution B and absorb it with a macroporous adsorption resin, wash it with water until it is colorless or lighter in color, then elute it with 90% ethanol, collect the eluate, concentrate under reduced pressure, and dry to obtain apricot rabbit ear wind effective part.
Embodiment 1-3
[0039] A method for preparing the effective part of apricot-flavored rabbit ear wind, the preparation method comprises the following steps in sequence:
[0040] Step (1) take apricot and rabbit earwind medicinal material, add 50% ethanol to carry out percolation or heat reflux extraction, and obtain the extract A;
[0041] Step (2) Take the extract A, concentrate under reduced pressure to obtain the concentrate B;
[0042] Step (3) Take the concentrated solution B, extract it with petroleum ether and ethyl acetate in sequence, combine the extracts, concentrate under reduced pressure, and dry to obtain the effective part of apricot rabbit ear wind;
[0043] Or in step (3) take the concentrated solution B for adsorption on the macroporous adsorption resin, wash with water until it is colorless or lighter in color, then elute with 60% ethanol, collect the eluate, concentrate under reduced pressure, and dry to obtain apricot rabbit ear wind effective part.
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