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Method for preparing cinnamaldehyde

A technology of cinnamic aldehyde and cinnamon is applied in the separation/purification of carbonyl compounds, bulk chemical production, organic chemistry and other directions, can solve problems such as unfavorable large-scale production operations, low cinnamic aldehyde content, pollution, etc. Simple operation and small equipment investment

Inactive Publication Date: 2017-02-15
防城港市防城区那梭香料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the extraction and separation of cinnamon aldehyde mainly adopts the organic solvent method, etc., but the content of cinnamic aldehyde obtained by these extraction processes is low, the pollution is serious in the production process, and it is unfavorable for large-scale production operations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of preparation method of cinnamon aldehyde, described method comprises the following steps:

[0016] (1) Take cinnamon bark fine powder, put into supercritical CO 2 In the fluid extraction kettle;

[0017] (2) Set supercritical CO 2 The fluid extraction pressure is 350bar, and the extraction temperature is 35°C; under this condition, the cinnamon bark is extracted statically for 10 minutes; then set the CO 2 The dynamic extraction flow rate is 3.5L / min, and the dynamic extraction of cassia bark is performed for 15 minutes;

[0018] (3) The collected supercritical CO 2 Fluid extract, to be CO 2 After complete volatilization, the extract was obtained, added anhydrous sodium sulfate for dehydration, filtered, recovered dichloromethane and dried.

Embodiment 2

[0020] A kind of preparation method of cinnamon aldehyde, described method comprises the following steps:

[0021] (1) Take cinnamon bark fine powder, put into supercritical CO 2 In the fluid extraction kettle;

[0022] (2) Set supercritical CO 2 The fluid extraction pressure is 100bar, and the extraction temperature is 70°C; under this condition, the cinnamon bark is extracted statically for 35 minutes; then set the CO 2 The dynamic extraction flow rate is 1.0L / min, and the dynamic extraction of cassia bark is performed for 5 minutes;

[0023] (3) The collected supercritical CO 2 Fluid extract, to be CO 2 After complete volatilization, get the extract, add anhydrous sodium sulfate for dehydration, filter, recover dichloromethane and dry it.

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Abstract

The invention relates to the technical field of plant extraction, in particular to a method for preparing cinnamaldehyde. The method comprises the following steps: taking and loading cinnamon bark fine powder into a supercritical CO2 fluid extraction kettle; setting supercritical CO2 fluid extraction, collecting the obtained supercritical CO2 fluid extract, obtaining extract after CO2 is fully volatilized, adding anhydrous sodium sulfate for dehydration, performing filtration, recovering dichloromethane and performing drying to obtain cinnamaldehyde. The method for preparing cinnamaldehyde provided by the invention has the advantages that the operation of preparing cinnamaldehyde is simple and convenient to perform, the pollution is less, the equipment investment is small and the mass production operation is facilitated.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a preparation method of cinnamon aldehyde. Background technique [0002] Cinnamic aldehyde is a natural compound with antipyretic and sedative effects, and widely exists in a variety of plants. The traditional Chinese medicine cinnamon is the dry bark of Cinnamomum lauraceae plant, which has the functions of nourishing fire and yang, returning fire to its source, dispelling cold and relieving pain, promoting blood circulation and stimulating menstruation, etc. It is rich in cinnamon aldehyde. In the prior art, the extraction and separation of cinnamon aldehyde mainly adopts the organic solvent method, etc., but the content of cinnamic aldehyde obtained by these extraction processes is low, the pollution in the production process is serious, and it is unfavorable for large-scale production operations. Contents of the invention [0003] The technical problem to be solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/78C07C45/79C07C45/81C07C47/232
CPCC07C45/78C07C45/79C07C45/81C07C47/232Y02P20/54
Inventor 陈猛棠陈相棠周丽珠李军集
Owner 防城港市防城区那梭香料厂