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Method for enriching tannin parts of phyllanthus emblica

A technology of emblica and tannin, which is applied in the direction of medical formula, medical preparations containing active ingredients, plant raw materials, etc., can solve the problems of unfavorable industrialization promotion, not widely used, and less tannin, and achieve stable and feasible preparation process , easy promotion, and simple method

Inactive Publication Date: 2019-06-14
BEIJING UNIV OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, domestic research on tannin is less, and it is still in its infancy. CN102327314A, published on January 25, 2012, discloses a method for preparing emblical tannin. The process includes supercritical carbon dioxide fluid extraction and ultrasonic extraction. , while supercritical fluid extraction and ultrasonic extraction are not widely used in production, which is not conducive to the promotion of industrialization, and acetone solvent is used in the preparation process, the quality is not easy to control, and it pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: the influence of medicinal material particle size on tannin extraction

[0037] Precisely weigh 6 parts of emblica medicinal material, about 10g each, respectively a: untreated raw medicinal material, b: medicinal material powder crushed through a 5-mesh sieve, c: medicinal material powder crushed through a 10-mesh sieve, d: crushed The medicinal material powder passed through a 20-mesh sieve was extracted twice with 10 times the amount (w / w) of emblica medicinal material (w / w) in 60% ethanol, and extracted twice for 12 hours each time. dish, steamed at 40°C to a thick paste, and vacuum-dried to obtain the extract. Take an appropriate amount of extracts to determine the content of tannins and total phenols, and perform 3 parallel operations. The results are shown in the table below:

[0038] Table 1: Extraction results of emblica with different particle sizes

[0039] Grinding particle size

Embodiment 2

[0040] Embodiment 2: the preparation of emblica tannin extract

[0041] Take 10 g of emblica medicinal material with a particle size of 5 mesh, extract it by soaking in 60% ethanol for 3 times at 45 ° C, 12 h each time, the amount of ethanol is 12 times that of the medicinal material (w / w), filter the extract, and the obtained supernatant is extract.

Embodiment 3

[0042] Embodiment 3: the preparation of emblica tannin extract

[0043] Take 10 g of emblica medicinal material with a particle size of 10 mesh, extract twice at 55°C with 55% ethanol for 6 hours each time, the amount of ethanol is 6 times that of the medicinal material (w / w), filter the extract, and obtain the supernatant as extract.

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Abstract

The invention relates to a method for preparing tannin from phyllanthus emblica medicines. The method comprises the following steps of (1) concentrating an extract of the tannin of the phyllanthus emblica to a liquid medicine with a concentration corresponding to 0.1-0.3 g of crude drug / ml, and centrifuging or filtering to obtain a supernatant; (2) dynamically adsorbing the supernatant through macroporous adsorption resin, and then conducting gradient elution with ethanol water; dryingan eluent under a reduced pressure. The method is controllable in quality and environmentally friendly, and isconducive to industrialization popularization.

Description

technical field [0001] The invention relates to a method for preparing active ingredients of traditional Chinese medicine, in particular to a method for preparing tannin from emblica medicinal material. Background technique [0002] Amla emblica Phyllanthus emblica The fruit of L. has the effects of resolving phlegm, promoting body fluid, relieving cough and detoxification. It is mainly used to treat cold and fever, cough and sore throat, diphtheria, restlessness and dry mouth. Distributed in Fujian, Guangdong, Guangxi, Yunnan, Guizhou, Sichuan, Taiwan and other places. Most of emblica are wild or semi-wild, almost free from industrial pollution, and are veritable raw materials for green food processing. [0003] The fresh fruit of Phyllanthus emblica contains 45% tannin, the immature fruit contains 30%-35% tannin, and the total tannin content in the dried fruit can reach 14%, of which chebrinic acid and chebrinic acid can be separated (chebulagic acid), corilagin, terch...

Claims

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Application Information

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IPC IPC(8): A61K36/47A61K131/00
Inventor 张兰珍张鸿雁梁文仪
Owner BEIJING UNIV OF CHINESE MEDICINE
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