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Artemisia sacrorum ledeb volatile oil extraction process

An extraction process, the technology of Artemisia vulgaris, which is applied in solid solvent extraction, chemical/physical/physical-chemical processes of energy application, etc., can solve the problems of low yield, long extraction time, less volatile oil, etc., and achieves high efficiency and operation. simple effect

Inactive Publication Date: 2012-12-26
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the content of volatile oil in plants is very small and easy to lose, so in order to obtain the target substance to the greatest extent, it is extremely important to find a suitable extraction technology
At present, the extraction technology of the volatile oil of Artemisia permanensis is mainly steam distillation, but this method has the disadvantages of long extraction time, energy consumption, low yield, etc. The ideal method is of great significance

Method used

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  • Artemisia sacrorum ledeb volatile oil extraction process
  • Artemisia sacrorum ledeb volatile oil extraction process
  • Artemisia sacrorum ledeb volatile oil extraction process

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The influence of embodiment 1 sample granularity on extraction yield

[0034] Set the ratio of solid to liquid to 1:8, ultrasonic treatment for 40min, and ultrasonic power of 300W, to investigate the effect of different particle sizes on the extraction yield of volatile oil extract. Depend on figure 1 It can be seen that with the decrease of the particle size of the sample, the extraction yield of volatile oil showed an obvious upward trend. During the extraction process, as the particle size of the material decreases, the number of cells directly exposed to the extraction solvent increases, and the contact area with the extraction solvent increases, which is conducive to the leaching of active ingredients. However, the smaller the material particle size, the slower the filtration speed, which will reduce the extraction efficiency and even cause greater loss; at the same time, the finer the sample is broken, the longer it will take, which will easily cause the temperat...

Embodiment 2

[0035] Embodiment 2 Ultrasonic treatment time is on the influence of extraction yield

[0036] The ratio of solid to liquid was 1:8, the particle size of the sample was 40 mesh, and the ultrasonic power was 300W. The influence of different extraction time (0-100min) on the extraction yield of volatile oil extract was investigated. Such as figure 2 As shown, within 0-60 minutes, the extraction yield of volatile oil showed an obvious upward trend with the extension of ultrasonic time; when the treatment time exceeded 60 minutes, the extraction yield began to decline with the extension of time. In general, the longer the sonication time, the higher the yield of the extract obtained. This is because with the prolongation of time, the amount of intracellular impurities entering the extraction solvent will also increase correspondingly, increasing the mass transfer resistance and hindering the dissolution of active ingredients, so that the extraction yield will decrease; in additi...

Embodiment 3

[0037] Embodiment 3 The influence of ultrasonic power on the extraction yield

[0038] Set the ratio of solid to liquid to 1:8, particle size to 40 mesh, and ultrasonic treatment for 40 minutes to investigate the effect of different ultrasonic power (200-450W) on the extraction yield of volatile oil extract. Such as image 3 As shown, with the increase of power, the extraction rate of volatile oil first increased and then decreased, reaching the highest point at 350W. Ultrasound has a strong crushing effect on plant cells. At low power, with the increase of power, the cavitation effect is enhanced, the cavitation bubbles are violently broken, the degree of plant cell rupture is increased, and the release, diffusion and dissolution of intracellular substances are strengthened. It is conducive to the dissolution of active ingredients; in addition, the mechanical stirring effect of ultrasonic waves will also increase with the increase of power, which promotes the contact between...

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Abstract

The invention discloses an artemisia sacrorum ledeb volatile oil extraction process. The process comprises the following steps: (1) weighting 25g of rtemisia sacrorum ledeb with particle size of 80 micrometers and placing the rtemisia sacrorum ledeb in a 500-milliliter triangular flask, adding 250 milliliters of distilled water according to a material-liquid ratio of 1: 10 (g / mL), and soaking for 1 hour, (2) carrying out batch-type ultrasound extraction at a temperature between 21 degrees to 29 degrees for 40 minutes of ultrasound time and under 400 watts of ultrasonic power, (3) filtering and moving residue, compressing filtered liquid at the temperature of 50 degrees, adding 10 milliliters of resteamed diethyl ether and extracting for three times, mixing the extraction liquid, decompressing and recycling the diethyl ether, drying through nitrogen and weighting. The process takes extraction rate of artemisia sacrorum ledeb volatile oil extract as an evaluation index, optimizes the process of volatile oil extraction assisted by ultrasound wave by means of single factor tests and orthogonal tests, and aims to select best extraction process conditions of the artemisia sacrorum ledeb volatile oil and provides certain scientific foundations for further expanded production.

Description

technical field [0001] The invention relates to a process for extracting volatile oil, in particular to a process for extracting the volatile oil of Artemisia permanensis. Background technique [0002] Volatile oil is an important class of secondary metabolites in plants, has significant biological activity, and has a wide range of application values ​​in the fields of medicine, food, and daily chemicals. However, the content of volatile oil in plants is very small and easy to be lost. Therefore, in order to obtain the target substance to the greatest extent, it is extremely important to find a suitable extraction technology. At present, the extraction technology of the volatile oil of Artemisia permanensis is mainly steam distillation, but this method has the disadvantages of long extraction time, energy consumption, low yield, etc. The ideal method is of great significance. [0003] As a new extraction technology, ultrasonic method mainly utilizes the cavitation effect o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01J19/10
Inventor 郝文芳黄静梁宗锁
Owner NORTHWEST A & F UNIV