Method for extracting melaleuca alternifolia and tea tree essence oil

A technology for Melaleuca alternifolia and tea tree essential oil is applied in the field of extraction of Melaleuca alternifolia tea tree essential oil, which can solve the problems of many impurities, solvent residues, low terpineol content, etc., and achieves a low impurity rate and pure aroma. Effect

Inactive Publication Date: 2016-10-12
邵武市美菰林卫生用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the present invention provides a method for extracting Melaleuca alternifolia tea tree essential oil; it overcomes the problems of many impurities, low content of terpineol and residual solvent in the traditional organic solvent extraction of tea tree essential oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of extraction method of Melaleuca alternifolia tea tree essential oil:

[0033] Step 1: Place the stems and leaves of Melaleuca alternifolia in 70% ethanol for overnight infiltration, the mass ratio of Melaleuca alternifolia stems and leaves to ethanol is 1:3, and conduct the Microwave radiation, the microwave radiation frequency is set to 2500MHz, the power is set to 5000W, and the radiation time is set to 180s;

[0034] Step 2: Microwave-treated Melaleuca alternifolia samples using supercritical CO 2 Extraction, the fluid extraction temperature was set to 33 ° C, CO 2 The fluid flow rate is 730L / h, and the extraction time is 3h to obtain the crude extract of tea tree essential oil;

[0035] Step 3: For supercritical CO 2 The extracted tea tree essential oil is subjected to primary distillation, the temperature is set to 70°C, and the pressure is set to 6500Pa, to separate the alkane light component impurities in the tea tree essential oil that affect the aro...

Embodiment 2

[0038] A kind of extraction method of Melaleuca alternifolia tea tree essential oil:

[0039] Step 1: Place the stems and leaves of Melaleuca alternifolia in 70% ethanol for overnight infiltration, the mass ratio of Melaleuca alternifolia stems and leaves to ethanol is 1:3, and conduct the Microwave radiation, the microwave radiation frequency is set to 2500MHz, the power is set to 5000W, and the radiation time is set to 180s;

[0040] Step 2: Microwave-treated Melaleuca alternifolia samples using supercritical CO 2 Extraction, the fluid extraction temperature was set to 35 ° C, CO 2 The fluid flow rate is 750L / h, and the extraction time is 4h to obtain the crude extract of tea tree essential oil;

[0041]Step 3: For supercritical CO 2 The extracted tea tree essential oil is subjected to primary distillation, the temperature is set to 75°C, and the pressure is set to 6700Pa, to separate the alkane light component impurities in the tea tree essential oil that affect the arom...

Embodiment 3

[0044] A kind of extraction method of Melaleuca alternifolia tea tree essential oil:

[0045] Step 1: Place the stems and leaves of Melaleuca alternifolia in 70% ethanol for overnight infiltration, the mass ratio of Melaleuca alternifolia stems and leaves to ethanol is 1:3, and conduct the Microwave radiation, the microwave radiation frequency is set to 2500MHz, the power is set to 5000W, and the radiation time is set to 180s;

[0046] Step 2: Microwave-treated Melaleuca alternifolia samples using supercritical CO 2 Extraction, the fluid extraction temperature was set to 37 ° C, CO 2 The fluid flow rate is 770L / h, and the extraction time is 5h to obtain the crude extract of tea tree essential oil;

[0047] Step 3: For supercritical CO 2 The extracted tea tree essential oil is subjected to primary distillation, the temperature is set to 80°C, and the pressure is set to 7000Pa, to separate the alkane light component impurities in the tea tree essential oil that affect the aro...

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Abstract

The invention relates to the technical field of essence oil extraction, in particular to a method for extracting melaleuca alternifolia and tea tree essence oil. According to the characteristics of the melaleuca alternifolia and tea tree essence oil, a tea tree essence oil crude extract is obtained through pretreatment of quenching and microwave radiation and extraction of melaleuca alternifolia with supercritical CO2, and the tea tree essence oil crude extract is subjected to molecular distillation to obtain a final tea tree essence oil product, so that the obtained tea tree essence oil is more pure in fragrance, light yellow, transparent and low in impurity rate, the light oil content is larger than 10%, the content of the active component, namely 4-terpilenol, in the final tea tree essence oil product reaches 47.52%, the content of 1,8-cineole is reduced to 2.42%, and the household-necessity-grade standards of the tea tree essence oil are met.

Description

technical field [0001] The invention relates to the field of essential oil extraction technology, in particular to an extraction method of Melaleuca alternifolia tea tree essential oil. Background technique [0002] Melaleuca alternifolia, also known as tea oil tree, is the main raw material of tea tree essential oil; tea tree essential oil extracted from fresh branches and leaves of Melaleuca alternifolia is a natural oil, especially the terpineol component in tea tree essential oil, which is widely used Used in daily hygiene products, skin care products, cosmetics, food spices, pharmaceuticals, organic biopesticides and many other fields; the existing tea tree essential oil extraction technology mostly uses organic solvent extraction, although organic solvent extraction has a high yield, but there is solvent recovery. And problems such as solvent residues in the product, the content of terpineol is low, and impurities are difficult to remove. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025C11B9/027
Inventor 吴燕斌
Owner 邵武市美菰林卫生用品有限公司
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