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Extraction method of artemisia vulgaris essential oil

An extraction method and a technology for wormwood essential oil, which are applied in the field of extraction of wormwood essential oil, can solve the problems of many impurities and low quality of essential oil, and achieve the effects of reducing the penetration speed, reducing the generation of impurities and improving the purity.

Inactive Publication Date: 2017-12-12
HEFEI YUANZHENG AFE SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the extraction of wormwood essential oil usually does not distinguish the leaves and stems of wormwood, but the stems and leaves are mixed and extracted together. This method extracts essential oil with more impurities and low quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for extracting wormwood essential oil, specifically the following steps:

[0019] (1) Extraction of essential oil from wormwood leaves

[0020] After cleaning the wormwood leaves, soak them in 10 times the clear water of the wormwood leaves for 30 minutes, use ultrasonic treatment for 5 seconds every 5 minutes during the soaking period, and then use steam distillation to extract the essential oil;

[0021] (2) Pretreatment of wormwood stems

[0022] Wash and chop the wormwood stems, place them in a freezer at -15°C for 30 minutes, and immediately place them in a 15% aqueous solution of sodium hydroxide at 0-10°C for 45 minutes, then Heat until the solution boils, keep warm for 60 seconds, filter to obtain a precipitate, wash the precipitate with clean water until the pH value is 8.5-9.5, and then use the compound enzyme solution to fully enzymatically hydrolyze for 200 minutes at 35-40°C;

[0023] (3) Extraction of essential oil from wormwood stems

[0024] ...

Embodiment 2

[0029] A method for extracting wormwood essential oil, specifically the following steps:

[0030] (1) Extraction of essential oil from wormwood leaves

[0031] After cleaning the wormwood leaves, soak them in 10 times the clear water of the wormwood leaves for 40 minutes, use ultrasonic treatment for 10 seconds every 5 minutes during the soaking period, and then use steam distillation to extract the essential oil;

[0032] (2) Pretreatment of wormwood stems

[0033] Wash and chop the wormwood stems, place them in a freezer at -15°C for 40 minutes, and place them in a 15% sodium hydroxide aqueous solution at 0-10°C immediately after taking them out, soak them for 60 minutes, and then Heat until the solution boils, keep warm for 90 seconds, filter to obtain a precipitate, wash the precipitate with clean water until the pH value is 8.5-9.5, and then use the compound enzyme solution to fully enzymatically hydrolyze at 35-40°C for 220 minutes;

[0034] (3) Extraction of essential...

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PUM

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Abstract

The invention relates to an extraction method of artemisia vulgaris essential oil. The extraction method specifically comprises the following steps: (1) extraction of artemisia vulgaris leaf essential oil; (2) pretreatment of artemisia vulgaris stems; (3) extraction of artemisia vulgaris stem essential oil. Through an experiment, according to the extraction method of the artemisia vulgaris essential oil, which is provided by the invention, the artemisia vulgaris stems and artemisia vulgaris leaves are separately extracted, the operation is simple, the purity of the artemisia vulgaris essential oil is greatly improved, the cost of subsequent purification is lowered, and a significance of lowering cost for enterprises is achieved.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for extracting wormwood essential oil. Background technique [0002] Wormwood essential oil is a volatile aromatic substance extracted from the leaves and stems of wormwood, extruded and solvent extracted, and is generally light yellow or greenish yellow. Extracted from natural mugwort leaves, the appearance is light yellow or greenish yellow. It has good effects of warming meridians, dredging collaterals, nourishing qi and activating blood circulation, dispelling cold and relieving pain, improving local circulation, and increasing immunity. [0003] In the prior art, the extraction of wormwood essential oil usually does not distinguish the leaves and stems of wormwood, but the stems and leaves are mixed and extracted together. This method extracts essential oils with many impurities and low quality. Contents of the invention [0004] In order to s...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025C11B9/027
Inventor 郭秉政郭锐李元元郭立兵
Owner HEFEI YUANZHENG AFE SCI TECH
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