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Extraction technology of folium artemisiae argyi volatile oil

A technology for extracting volatile oil from mugwort leaves, which is applied in the production of fat oil/fat and fat production, etc. It can solve the problems of low extraction rate of volatile oil and large loss of volatile oil, and achieve fast and efficient thawing, low cost, and the effect of inhibiting oxidation and decomposition

Inactive Publication Date: 2016-05-04
安徽益健堂中药饮片科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current extraction method, the extraction rate of volatile oil is low, and the loss of volatile oil is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of extracting technology of volatile oil of Folium Artemisiae Argyi, comprises the following steps:

[0015] (1) Wash and remove the leaves of Artemisia argyi, dry them at a low temperature of 20°C, pulverize them, and pass through a 20-mesh sieve to obtain Artemisia argyi powder;

[0016] (2) Add warm water to the mugwort leaf powder and soak until it expands, then freeze it at -6°C for 2 hours; then thaw the frozen mugwort leaf powder with microwave, the microwave thawing temperature is 50°C, the microwave thawing power is 300W, and the microwave thawing time 10min;

[0017] (3) add 10 times of its weight to the thawed Folium Artemisiae Argyi powder and soak for 10 hours, then steam distill the Folium Artemisiae Argyi powder and the soaking solution for 5 hours, and collect the distillate; Take the upper oil layer to get the volatile oil of Artemisia argyi.

[0018] The extraction rate of the Artemisia argyi Folium volatile oil of the present embodiment 1 rea...

Embodiment 2

[0020] A kind of extracting technology of volatile oil of Folium Artemisiae Argyi, comprises the following steps:

[0021] (1) Wash and remove the leaves of Artemisia argyi, dry at a low temperature of 25°C, pulverize, and pass through a 20-mesh sieve to obtain Artemisia argyi powder;

[0022] (2) Add warm water to the mugwort leaf powder and soak until it expands, then freeze at -3°C for 3 hours; then microwave the frozen mugwort leaf powder at 55°C, microwave thawing power of 350W, microwave thawing time 8 minutes;

[0023] (3) Add 12 times of its weight in water to the thawed Folium Artemisiae Argyi powder and soak for 8 hours, then carry out steam distillation to the Folium Artemisiae Argyi powder and soaking liquid, distill for 6 hours, collect the distillate; Take the upper oil layer to get the volatile oil of Artemisia argyi.

[0024] The extraction rate of the Artemisia argyi Folium volatile oil of the present embodiment 2 reaches 82.3%.

Embodiment 3

[0026] A kind of extracting technology of volatile oil of Folium Artemisiae Argyi, comprises the following steps:

[0027] (1) Wash and remove the leaves of Artemisia argyi, dry at a low temperature of 30°C, pulverize, and pass through a 20-mesh sieve to obtain Artemisia argyi powder;

[0028] (2) Add warm water to the mugwort leaf powder and soak until it expands, then freeze it at 0°C for 3 hours; then thaw the frozen mugwort leaf powder with microwave, the microwave thawing temperature is 60°C, the microwave thawing power is 400W, and the microwave thawing time is 10min;

[0029] (3) Add 15 times of its weight in water to the thawed Folium Artemisiae Argyi powder and soak for 5 hours, then steam distill the Folium Artemisiae Argyi powder and the soaking solution, distill for 8 hours, and collect the distillate; Take the upper oil layer to get the volatile oil of Artemisia argyi.

[0030] The extraction rate of the Artemisia argyi Folium volatile oil of the present embodim...

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Abstract

The invention discloses an extraction technology of folium artemisiae argyi volatile oil. The technology comprises the steps that 1, folium artemisiae argyi is cleaned thoroughly, impurities are removed, and low-temperature drying and smashing are performed to obtain folium artemisiae argyi powder; 2, warm water is added into the folium artemisiae argyi powder till the folium artemisiae argyi powder is soaked to be expanded, and freezing treatment is performed at the temperature of subzero 6 DEG C to 0 DEG C for 2-3 h; microwave defrosting is performed on the frozen folium artemisiae argyi powder; 3, water with the weight 10-15 times that of the folium artemisiae argyi powder is added into the defrosted folium artemisiae argyi powder for soaking for 5-10 h, then, steam distillation is performed on the folium artemisiae argyi powder and the soaking solution, distillation is performed for 5-8 h, and a distillate is collected; standing, cooling and layering are performed on the distillate, and then an upper oil layer is obtained and is the folium artemisiae argyi volatile oil. According to the extraction technology of the folium artemisiae argyi volatile oil, freezing-microwave defrosting pretreatment and a steam distillation steam method are combined, volatile oil in folium artemisiae argyi is extracted, the cost is low, operation is simple, the extraction time is short, and the volatile oil extraction rate is high.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a process for extracting volatile oil from leaves of mugwort. Background technique [0002] Artemisia argyi is the dried leaf of Artemisia argyi. It is a commonly used Chinese herbal medicine. It has the functions of dispelling cold and relieving pain, warming the meridian to stop bleeding, regulating menstruation and preventing miscarriage, dehumidifying and relieving itching, and dredging the meridian and activating collaterals. In traditional Chinese medicine, mugwort leaves are used as medicine, which returns to the liver, spleen, and kidney meridians. It tastes pungent and warm in nature. The main active ingredient of Artemisia argyi is volatile oil. Through a large number of studies on Artemisia argyi volatile oil, it has been identified that it contains medicinal active ingredients such as flavonoids, eucalyptane, terpenoids and polysaccharides. Modern pharmacolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10C11B1/00
CPCC11B1/04C11B1/00C11B1/10
Inventor 温同民
Owner 安徽益健堂中药饮片科技有限公司
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