Dropping pills containing spica prunellae extract and preparation method of dropping pills
A technology of Prunella vulgaris extract, which is applied to drop pills containing Prunella vulgaris extract, and the field of preparation of the drop pills can solve the problems of not disclosing the preparation of Prunella vulgaris extract, etc.
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preparation example 1
[0052] Preparation Example 1-Prunella vulgaris Extract A
[0053] The preparation method of Prunella vulgaris extract of the present invention is:
[0054] (1) Extract Prunella vulgaris with water as the extraction solvent, heat and reflux for extraction twice, add 10 times the amount of water for extraction for 1 hour each time, combine the extracts, concentrate the extracts under reduced pressure, and dry to obtain the crude extract of Prunella vulgaris.
[0055] (2) The Prunella vulgaris crude extract is dispersed in deionized water to obtain a sample solution whose content of the Prunella vulgaris crude extract is 31g / 100ml, the sample solution is placed on an AB-8 macroporous resin column, and 2 Double volume of deionized water, 3 times of volume of 20 vol% ethanol aqueous solution and 5 times of volume of 50 vol% ethanol aqueous solution were used as eluent, and gradient elution was carried out.
[0056] (3) Collect the eluate after elution with 50 vol% ethanol aqueous...
preparation example 2
[0057] Preparation Example 2-Prunella vulgaris Extract B
[0058] (1) Use 70vol% ethanol aqueous solution as the extraction solvent to extract Prunella vulgaris by ultrasonic method, ultrasonically extract twice at 45°C, add 20 times the amount of ethanol aqueous solution for extraction for 1 hour each time, combine the extracts, concentrate under reduced pressure until there is no alcohol smell, and dry , to obtain the crude extract of Prunella vulgaris.
[0059] (2) Disperse the Prunella vulgaris crude extract in water to obtain a sample solution whose content of the Prunella vulgaris crude extract is 31g / 100ml, place the sample solution on an AB-8 macroporous resin column, and use 2 times the volume successively Deionized water, 3 times the volume of 20 vol% ethanol aqueous solution and 5 times the volume of 70 vol% ethanol aqueous solution were used as eluents to carry out gradient elution.
[0060] (3) Collect the eluate after elution with 70 vol% ethanol aqueous solut...
preparation example 3
[0062] (1) Extract Prunella vulgaris with water as the extraction solvent, ultrasonically extract 3 times, ultrasonic temperature is 35°C, add 10 times the amount of water for extraction for 1.5 hours each time, combine the extracts, concentrate the extracts under reduced pressure, and dry to obtain the crude extract of Prunella vulgaris ;
[0063] (2) The Prunella vulgaris crude extract is dispersed in deionized water to obtain a sample solution whose content of the Prunella vulgaris crude extract is 50g / 100ml, and the sample solution is placed on an AB-8 macroporous resin column, followed by Using 4 times the volume of deionized water, 2 times the volume of 15vol% ethanol aqueous solution and 5 times the volume of 60vol% ethanol aqueous solution as the eluent, carry out gradient elution;
[0064] (3) Collect the eluate after elution with 60 vol% ethanol aqueous solution, concentrate and dry to obtain Prunella vulgaris extract.
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