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Reinforced extraction method for lavender essential oil

A technology of lavender essential oil and extraction method, which is applied in the field of essential oil extraction, and can solve problems such as cumbersome process, residual organic solvent, and large loss of active ingredients

Inactive Publication Date: 2012-09-19
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the same disadvantages as ultrasonic-assisted organic solvent extraction, and the product has organic solvent residues
[0016] To sum up, the existing lavender essential oil extraction process, as well as the plant essential oil extraction process with the help of ultrasonic extraction, have more or less problems such as high production cost, large loss of active ingredients, cumbersome process, and organic solvent residues.

Method used

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  • Reinforced extraction method for lavender essential oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 100 g of lavender powder in the extraction device, add 1.5 L of inorganic salt solution with a mass fraction of KCl of 0.5%, carry out ultrasonic enhancement for 0.5 h, and steam distillation after the enhancement is completed, and the distillation time is 1.5 h. The vapor product after distillation is cooled and separated to obtain essential oil. The obtained essential oil analysis identified 28 compounds, the relative contents of some compounds were: linalool 29.784%, isoborneol 10.516%, 2-terpineol 9.074%, lavender acetate 6.794%, cis-linalool oxide 5.807%, dehydrolinalool 3.567%.

Embodiment 2

[0034] Take 80 g of lavender powder in the extraction device, add K 2 SO 4 1.0 L of inorganic salt solution with a mass fraction of 1%, was subjected to ultrasonic strengthening for 0.25 h, and steam distillation was performed after the strengthening was completed, and the distillation time was 1.0 h. The vapor product after distillation is cooled and separated to obtain essential oil.

Embodiment 3

[0036] Take 60 g of lavender powder in the extraction device, add 2.0 L of inorganic salt solution with a mass fraction of 1.5% NaCl, and carry out ultrasonic enhancement for 0.3 h. After the enhancement, steam distillation is carried out for 2.0 h. The vapor product after distillation is cooled and separated to obtain essential oil.

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Abstract

The invention discloses a reinforced extraction method for lavender essential oil, which relates to an extraction method for essential oil. According to the method, ultrasound-reinforced salting steam is adopted for distilling and extracting the lavender essential oil. Lavender raw material of 20-100 meshes is dipped by 0.1-4% of inorganic salt solution and is put into an extraction device; after the lavender raw material is subjected to ultrasound reinforcement for 0.2-1.5 hours, the steam is distilled; and oil and water mixture cooled to the room temperature is separated to obtain the essential oil. The lavender essential oil extraction rate of the method is more than two times that of the traditional steam distillation method, and the required distillation time can be obviously lowered. The essential oil extracted from lavandula or lavender stems and leaves with the reinforced extraction method disclosed by the invention can be used for the fields, such as cosmetics, food additives, sterilization and corrosion prevention.

Description

technical field [0001] The invention relates to a method for extracting essential oil, in particular to a method for strengthening the extraction of lavender essential oil. Background technique [0002] Lavender is a perennial subshrub widely used in medicine, cosmetics and food industry. Along the Mediterranean coast, it is widely cultivated in Northwest and Southwest China, especially in Yili, Xinjiang. The essential oil extracted from its flower spikes is fragrant, rich and fragrant, and is an important natural fragrance. The methods of extracting essential oils include traditional pressing, steam distillation and organic solvent extraction, as well as ultrasonic-assisted solvent extraction, supercritical CO 2 extraction etc. However, the above-mentioned methods usually have limiting factors such as low extraction rate, large loss of active ingredients, or high production cost. For example, the extraction rate of essential oil obtained by pressing method is low, and i...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCB01D11/0296B01D11/0211
Inventor 于三三李双明解晓李文秀
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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