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Method for changing viscosity of Chinese gall extract

A technology of extract and gallnut, which is applied in the field of changing the viscosity of gallnut extract itself, can solve the problem of no antibacterial effect, etc., and achieve the effect of low cost, easy operation and small dosage

Inactive Publication Date: 2011-05-18
TIANJIN BIJIA PHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to tannin, gallnut contains other antibacterial active ingredients, which are mainly distributed in the skin, and the decoction of gallnut heart has no antibacterial effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Get 600g gallnut with 6000ml 50% ethanol, reflux extraction 3 times, each time 2 hours, filter, combine filtrate, concentrate under reduced pressure to thermal measurement relative density is 1.2-1.3, obtain gallnut extract dry matter 76g. Add 25g of β-cyclodextrin, mix thoroughly, and vacuum dry to obtain a loose and non-sticky dry paste.

Embodiment 2

[0024] Get 600g gallnuts and use 4800ml 70% ethanol, reflux extraction 2 times, the first 3.5 hours, the second 2.5 hours, filter, combine the filtrate, add crospovidone 20g (200 mesh sieve), mix well, reduce pressure Concentrate to a thermal relative density of 1.10, and vacuum-dry to obtain a loose and non-sticky dry paste.

Embodiment 3

[0026] Take 600g gallnuts with 4800ml 80% ethanol, reflux extraction twice, each time for 2.5 hours, filter, combine the filtrate, add 30g pregelatinized starch, 10g starch, mix well, concentrate under reduced pressure until the relative density measured by heat is 1.2-1.25 , Vacuum-dried to obtain a loose and non-sticky dry paste.

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Abstract

The invention relates to a method capable of changing the viscosity of Chinese gall extract, which comprises the following steps of: performing reflux extraction on a Chinese gall medicinal material by using 50 to 80 percent ethanol in an amount which is 5 to 10 times that of the Chinese gall medicinal material, mixing filtrate to obtain extract, concentrating the extract, and performing alcohol precipitation to remove precipitate so as to obtain liquid extract; and adding an adsorbent into the liquid extract, and concentrating under reduced pressure to obtain extract, or adding the adsorbent into the extract, fully and uniformly mixing, and performing vacuum drying. In the method, a pharmaceutical excipient is taken as the adsorbent and a carrier of active ingredients, and the active ingredients and viscous materials in the Chinese gall extract are adsorbed in excipient particles, so that the physical property of high external viscosity of the Chinese gall extract is changed, and the smooth proceeding of a preparation forming process is ensured.

Description

technical field [0001] The invention belongs to the technical field of traditional Chinese medicine preparations, and relates to a method for extracting Chinese medicinal materials of Galla galla, more specifically a method capable of changing the viscosity of Galla galla extract itself. technical background [0002] Modern pharmacological studies have shown that Galla galla has the effects of astringing the lungs and reducing fire, astringing the intestines to relieve diarrhea, nourishing the kidneys and stopping sequelae, astringing sweat and promoting body fluid, etc. Galla chinensis, Song "Kaibao Materia Medica" income grass department. "Jiayou Materia Medica" moved to the wood department, although it is known that it is born on skin wood, but it is not known that it is made by insects. Skin wood, that is, salt skin wood. When this tree grows in the jungle, in May and June there are insects like ants, which eat its juice, and when they grow old, they leave seeds, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K35/64A61P1/14A61P1/12A61P15/00
Inventor 范培柱
Owner TIANJIN BIJIA PHARMA CO LTD
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