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Method for extracting pogostemon cablin volatile oil

An extraction method and technology of volatile oil, applied in the field of extraction of patchouli volatile oil

Inactive Publication Date: 2019-03-05
南京泽朗医药技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0016] Cut the patchouli stems into 1cm pieces, add them to a pulverizer and pulverize them, 40 mesh, soak in water, the ratio of material to liquid is 1:7, soak for 24 hours, add the soaked material to an ultra-high pressure extractor, seal it, and keep it at room temperature , the pressure rises to 200MPa, and the pressure is instantly relieved. The separation temperature of the separation kettle is 25℃ and the pressure is 10MPa. The treated material is put into supercritical CO 2 In the extraction kettle of the extraction apparatus, the extraction pressure was set to 20MPa, the extraction temperature was 35°C, and the extraction agent CO 2 The flow rate was 15kg / h, and the extraction was performed for 2h. The scented patchouli volatile oil was obtained from the separation kettle, purified into diethyl ether and water in a volume ratio of 3:1, and extracted 3 times. The diethyl ether was recovered by concentration under reduced pressure to obtain pure patchouli volatile oil. ...

Embodiment 2

[0018] Cut the patchouli stems into 2cm pieces, add them to a pulverizer and pulverize them, 80 meshes, soak them in water, with a material-to-liquid ratio of 1:9, soak for 24 hours, add the soaked materials to an ultra-high pressure extractor, airtight, at room temperature , the pressure rises to 400MPa, and the pressure is instantly relieved. The separation temperature of the separation kettle is 30℃ and the pressure is 20MPa. The treated material is put into supercritical CO 2 In the extraction kettle of the extraction apparatus, set the extraction pressure to 30MPa, the extraction temperature to 45°C, and the extraction agent CO. 2 The flow rate was 25kg / h, and the extraction was performed for 3 hours. The scented patchouli volatile oil was obtained from the separation kettle, purified into ether and water in a volume ratio of 3:1, and extracted 3 times, and concentrated under reduced pressure to recover ether to obtain pure patchouli volatile oil. The yield was 0.60%.

Embodiment 3

[0020] Cut the patchouli stems into 2cm pieces, add them to a pulverizer and pulverize them, 60 mesh, soak in water, the ratio of material to liquid is 1:8, soak for 24 hours, add the soaked material to an ultra-high pressure extractor, seal it, and keep it at room temperature , the pressure rises to 300 MPa, and the pressure is instantly relieved. The separation temperature of the separation kettle is 25 °C and the pressure is 20 MPa. The treated material is put into supercritical CO. 2 In the extraction kettle of the extraction apparatus, set the extraction pressure to 20MPa, the extraction temperature to 40°C, and the extraction agent CO. 2 The flow rate was 20kg / h, and the extraction was performed for 2h. The scented patchouli volatile oil was obtained from the separation kettle, purified into diethyl ether and water in a volume ratio of 3:1, and extracted 3 times, and concentrated under reduced pressure to recover diethyl ether to obtain pure patchouli volatile oil. The y...

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PUM

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Abstract

The invention relates to a method for extracting pogostemon cablin volatile oil. The processing method comprises the following steps: cutting pogostemon cablin stems into small sections of 1-2 cm, adding the small sections into a pulverizer to pulverize the small sections into 40-80 meshes, soaking the pulverized pogostemon cablin stems in water according to a material-to-liquid ratio of 1:(7-9),sealing the mixture in an ultrahigh-pressure extractor, increasing the pressure to 200-400 MPa at a normal temperature, releasing the pressure instantly, adding the material subjected to the wall breaking treatment into an extraction kettle of a supercritical CO2 extraction instrument for extraction, and then obtaining the pogostemon cablin volatile oil from the separation kettle. Compared with aconventional method, the method has the advantages that operation is simple, color and fragrance are preserved fully, the pesticide residue amount is low, and no pollution is caused.

Description

technical field [0001] The invention relates to an extraction method of patchouli volatile oil, which belongs to the technical field of extraction and separation of effective components of natural products. Background technique [0002] Volatile oils, also known as essential oils, are a general term for a class of volatile oily components in plants that have an aromatic odor, can be distilled with water vapor and are immiscible with water. The volatile oil is a mixture with complex components. The traditional method is mainly to prepare the essential oil by steam distillation and pressing. Most of the volatile oil components are terpenoids. In addition, they still contain small-molecule aliphatic compounds, which are mostly aromatic. [0003] Patchouli is the aerial part of the Lamiaceae plant, Patchouli, with aroma, and its stems and leaves are rich in volatile oils. Studies have shown that patchouli has pharmacological effects such as promoting gastric secretion, enhanci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/025C11B9/022
Inventor 苏刘花
Owner 南京泽朗医药技术有限公司