Withania somnifera lactide compound, method for extracting same and application of withania somnifera lactide compound
A lactide compound and a technology for the compound are applied in the field of withanolide compounds, and can solve the problems that the extraction method and application of the withanolide compound have not yet been reported.
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Embodiment 1
[0038] The extraction method of withanide compound, comprises the steps:
[0039] (1) Take the dry stem and leaf (9.5kg) of bitter mulberry (Physalis angulata L.) as raw material, add 9 times the mass fraction of the raw material as a 75% ethanol aqueous solution, reflux extraction twice, each extraction for 2 hours, and combine to obtain Extract, solvent recovery under reduced pressure, obtain total extract (1370g) after concentrating;
[0040] (2) Disperse the total extract into water of 5 times by mass, extract with equal volumes of petroleum ether and ethyl acetate successively, and recover the solvent under reduced pressure from the ethyl acetate extract to obtain 116g of ethyl acetate layer extract;
[0041] (3) The ethyl acetate layer extract is separated by silica gel column chromatography, and the dichloromethane-methanol with volume ratios of 100:1, 50:1, 30:1 and 15:1 are gradient eluted as eluents to obtain Fractions Fr.1, Fr.2, Fr.3 and Fr.4 (15 g);
[0042] (4)...
Embodiment 2
[0076] The extraction method of withanide compound, comprises the steps:
[0077] (1) Take the dry stem and leaf of A. fraterna as a raw material, add 80% ethanol aqueous solution with a volume fraction of 8 mass times of the raw material, reflux extraction for 3 times, extract for 2 hours each time, combine to obtain the extract, recover the solvent under reduced pressure, and concentrate Obtain the total extract;
[0078] (2) Disperse the total extract into water of 5 times by mass, extract with equal volumes of petroleum ether and ethyl acetate successively, and recover the solvent under reduced pressure from the ethyl acetate extract to obtain the ethyl acetate layer extract;
[0079] (3)-(9) are the same as embodiment 1(3)-(9).
Embodiment 3
[0081] The extraction method of withanide compound, comprises the steps:
[0082] (1) Take the dry stem and leaf of A. fraterna as a raw material, add 10 times the mass fraction of the raw material as a 60% ethanol aqueous solution, reflux extraction for 3 times, and extract for 2 hours each time, combine to obtain the extract, recover the solvent under reduced pressure, and concentrate Obtain the total extract;
[0083] (2) Disperse the total extract into 10 mass times of water, extract with equal volumes of petroleum ether and ethyl acetate successively, and recover the solvent under reduced pressure from the ethyl acetate extract to obtain the ethyl acetate layer extract;
[0084] (3)-(9) are the same as embodiment 1(3)-(9).
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