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Drying method of liquid extract of traditional Chinese medicine

A drying method and liquid extract technology, which are applied in the directions of drying solid materials, heating to dry solid materials, and non-heating to dry solid materials, etc., can solve the problems of increasing the workload of cleaning equipment, poor universality, drug loss, etc., to achieve The effect of shortening microwave drying time, reducing loss and improving production efficiency

Active Publication Date: 2021-01-08
山西仁源堂药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of vacuum, the liquid extract of traditional Chinese medicine with a relative density of 1.15-1.22 (at 50-60°C) is prone to "bumping" phenomenon, causing the liquid extract of Chinese medicine to splash on the inner wall of the microwave vacuum drying box, resulting in The loss of drugs, while increasing the workload of cleaning equipment
Therefore, in order to achieve a good microwave vacuum drying effect while reducing or preventing bumping, it is necessary to carefully balance and adjust various microwave drying parameters during the drying process to avoid bumping for liquid extracts of traditional Chinese medicine with different properties, so the universality is relatively large. Difference

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The drying of embodiment 1-pueraria root liquid extract

[0020] The preparation of the kudzu root liquid extract: the water extract of the kudzu root medicinal material is concentrated to a relative density of 1.16-1.18 (at 50-60° C.).

[0021] Drying method: get 20kg of the pueraria root fluid extract and mix evenly with 1.5kg of starch to obtain the mixed fluid extract, which has a solid content of 19wt%, and puts it in a microwave vacuum drying box. The set temperature is 82° C., and the vacuum degree is - 0.075MPa, frequency 2450MHz, drying for 35 minutes to obtain a gray-white dry product with a water content of 4.5wt%.

[0022] There is no need to adjust the temperature and vacuum during the drying process, and the kudzu root liquid extract has no bumping.

Embodiment 2

[0031] The drying of embodiment 2-nepeta fluid extract

[0032] Preparation of Nepeta fluid extract: Concentrate the water extract of Nepeta medicinal material to a relative density of 1.18-1.20 (at 50-60° C.). Nepeta fluid extract contains a certain amount of volatile oil.

[0033] Drying method: get 20kg of the nepeta fluid extract and 1.6kg dextrin to mix evenly, obtain the mixed fluid extract, its solid content is 19.8wt%, be placed in the microwave vacuum oven, setting temperature is 75 ℃, vacuum The density is -0.076MPa, the frequency is 2460MHz, and it is dried for 32 minutes to obtain an off-white dry product with a water content of 4.5wt%.

[0034] There is no need to adjust the temperature and vacuum during the drying process, and the nepeta fluid extract has no bumping.

Embodiment 3

[0043] The drying of embodiment 3-rehmannia glutinosa liquid extract

[0044] Preparation of Rehmannia glutinosa liquid extract: Concentrate the water extract of Rehmannia glutinosa medicinal material to a relative density of 1.20-1.22 (at 50-60° C.). Rehmannia glutinosa liquid extract contains more polysaccharides and has a higher viscosity.

[0045] Drying method: get 20kg of the rehmannia glutinosa fluid extract and 2.0kg of starch and mix evenly to obtain the mixed fluid extract. -0.08MPa, frequency 2450MHz, drying for 40 minutes to obtain a brown dry product with a water content of 5.0wt%.

[0046] There is no need to adjust the temperature and vacuum during the drying process, and the rehmannia glutinosa liquid extract has no bumping.

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Abstract

The invention discloses a method for drying a traditional Chinese medicine fluid extract. The method comprises the following steps that the traditional Chinese medicine fluid extract is mixed with powdery materials to obtain a mixed fluid extract; the mixed fluid extract is subjected to microwave vacuum drying to obtain a dried product, wherein the relative density of the traditional Chinese medicine fluid extract is 1.15-1.22 at the temperature of 50-60 DEG C; and the solid content of the mixed fluid extract is 14-22 wt%. The method for drying the traditional Chinese medicine fluid extract issuitable for microwave vacuum drying of the traditional Chinese medicine fluid extract with the relative density of 1.15-1.22 to avoid the phenomenon of bumping. The method for drying the traditionalChinese medicine fluid extract can shorten the drying time and improve the drying efficiency. In addition, the method for drying the traditional Chinese medicine fluid extract is suitable for microwave vacuum drying of the traditional Chinese medicine fluid extract with the relative density of 1.15-1.22 without causing the phenomenon of bumping.

Description

technical field [0001] The invention relates to a drying method of liquid extract of traditional Chinese medicine, in particular to a microwave vacuum drying method of liquid extract of traditional Chinese medicine. Background technique [0002] Commonly used drying methods for liquid extracts of traditional Chinese medicine include vacuum drying, spray drying, freeze drying, drum drying, and microwave drying. Among them, the decompression drying method generally takes more than 6 hours to dry the liquid extract of traditional Chinese medicine. The drying time is too long, the energy consumption is large, and the production efficiency is low; Decomposition, affecting efficacy. Although the spray-drying method is fast in drying the liquid extract of traditional Chinese medicine, the single drying amount is very small, so the production efficiency is also low. Both the freeze-drying method and the drum drying method also have the problem of long drying time, resulting in low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B5/04F26B3/347A61J3/04
CPCA61J3/04F26B3/347F26B5/04
Inventor 李钦青张力张海
Owner 山西仁源堂药业有限公司