Preparation method and application of Chinese medicine extract for 'prescription for treating diarrhoea with abdominal pain'
A technology of Tongxie essential prescription and extract, which is applied in the field of preparation of drugs for the treatment of irritable bowel syndrome, can solve the problems of no marketing of finished products in the application, difficult storage, difficult dosage forms, etc., and achieve moisture absorption The effect of reducing and reducing the process cost and the method is simple
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Embodiment 1
[0053] [Example 1] Macroporous Resin Method 1 Preparation of "Tongxie Yaofang Extract"
[0054] Take 50 kg of Chinese herbal medicines fried Atractylodes macrocephala, 50 kg of white peony root, 38 kg of fried tangerine peel, 25 kg of Fangfeng, add 1 ton of 75% ethanol, heat and reflux for extraction for 2 hours, filter, and add 1 ton of 75% ethanol for extraction under reflux 2h, filter, and combine the two extracts. The solvent is recovered under reduced pressure, the temperature is 80°C, concentrated to 9 times the volume of the original medicinal material, the concentrated solution is diluted with 5 times hot water, and an appropriate amount of chitosan, a traditional Chinese medicine clarifying agent, is added, centrifuged, and the precipitate is removed. The supernatant is taken and loaded on D101 macroporous resin column (respectively use acid, alkali, water, alcohol to carry out pretreatment to resin column before sample loading), wash described adsorption with 5BV wat...
Embodiment 2
[0055] [Example 2] Macroporous Resin Method 2 Preparation of "Tongxie Yaofang Extract"
[0056] Take 50 kg of Chinese herbal medicines and stir-fry Atractylodes macrocephala, 50 kg of fried white peony root, 38 kg of fried tangerine peel, 25 kg of Fangfeng, add 1 ton of water, heat and reflux for extraction for 3 hours, filter, add 1 ton of water for reflux and extract for 2 hours, and filter. The two extracts were combined. Recover the solvent under reduced pressure, concentrate to 6 times the volume of the original medicinal material at a temperature of 80°C, dilute the concentrated solution with 3 times hot water, add an appropriate amount of chitosan, a traditional Chinese medicine clarifier, centrifuge, remove the precipitate, take the supernatant, and load the sample on D101 macroporous resin column (pre-treat the resin column with acid, alkali, water, and alcohol before loading the sample), rinse with 2BV of pure water after loading, discard the aqueous solution, and us...
Embodiment 3
[0057] [Example 3] Determination of active ingredients of Tongxie Yaofang extract
[0058] 1. Chromatographic conditions
[0059] High performance liquid chromatography HP1100 series (U.S. Hewlett-Packard Company), using octadecylsilane and silica gel as filler, C18 chromatographic column, specification is 5 μm, 4 × 250mm, column temperature 30 ℃, water (A) and acetonitrile ( B) is mobile phase, gradient elution, ultraviolet detector (UV), detection wavelength 230nm.
[0060] 2. Preparation of samples of Chinese herbal extracts from "Tongxieyao Fang"
[0061] 1) Extract of the present invention
[0062] According to the methods described in Examples 1 and 2 of the present invention, 3 batches of the above-mentioned Chinese medicine extracts were respectively prepared.
[0063] 2) Direct water extract (original method)
[0064] Take 50 kg of Chinese herbal medicines and stir-fry Atractylodes macrocephala, 50 kg of fried white peony root, 38 kg of fried tangerine peel, 25 kg...
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