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Low temp method for concentrating extracting solution of Chinese herbal medicine and its devices

A technology of low-temperature concentration and extraction liquid, applied in the field of medicine and health, can solve problems such as technical difficulties, achieve the effects of friendly working environment, good product taste, and improve the quality of traditional Chinese medicine products and the extraction yield of traditional Chinese medicines

Inactive Publication Date: 2006-04-19
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the crystallization and concentration method is applied to extract the ingredients of traditional Chinese medicine in production, which is quite difficult technically, and there is no relevant report at home and abroad.

Method used

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  • Low temp method for concentrating extracting solution of Chinese herbal medicine and its devices
  • Low temp method for concentrating extracting solution of Chinese herbal medicine and its devices
  • Low temp method for concentrating extracting solution of Chinese herbal medicine and its devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The low-temperature concentration process of embodiment 1 experimental medicinal liquid

[0028] Experimental liquid contains ethanol 7%, ethylene glycol 7%, sodium chloride 1%, polyvinyl alcohol 0.01% (mass percentage), and molecular weight is that the polyvinyl alcohol of 90000 is equivalent to macromolecular protein, and the initial liquid of such The concentration of the solution is about 15%. With the concentration of the liquid medicine, pure ice crystals are separated, the concentration of the liquid medicine increases gradually, and the crystallization temperature decreases. The corresponding relationship is shown in Table 1. From figure 2 It can be seen that the increase of the concentration of the drug solution is basically in a linear relationship with the decrease of the crystallization temperature.

[0029] figure 1 In the process, the medicinal liquid is put into the liquid tank 4, and the medicinal liquid passes through the cooling heat exchanger 9 th...

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Abstract

A method and apparatus for low-temp concentrating of liquid extract of Chinese-medicinal material is disclosed. The said method includes cooling to over-cold temp, physically generating ice crystal, and centrifugal separation of solvent from solute.

Description

technical field [0001] The invention belongs to the field of medicine and hygiene, and in particular relates to a low-temperature concentration method and a device for extracting liquid of traditional Chinese medicine. Background technique [0002] The extraction, separation, and purification technologies of traditional Chinese medicine have undergone great changes in the past two decades, but compared with foreign advanced pharmaceutical industries, there is still a big gap. The concentration methods used in existing and traditional Chinese medicines generally use negative pressure steam boiling to condense and remove the evaporated water and volatile substances in the liquid medicine, thereby achieving the effect of concentrating the liquid medicine. In actual production, this technical method has disadvantages that are difficult to overcome: the loss of volatile components in the liquid medicine; the production environment is poor, and due to a large amount of steam and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61J3/00
Inventor 吕树申
Owner SUN YAT SEN UNIV
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