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A kind of preparation method of natural high-purity gardenia essential oil crystal

A high-purity technology of gardenia essential oil, which is applied in the direction of essential oil/perfume, fat production, etc., and can solve the problems of dissolving flower residue, not suitable for industrial production, storage of extract or base essential oil, inconvenient transportation, etc. , to achieve the effect of convenient transfer and transportation, long working life and wide adsorption range

Active Publication Date: 2020-11-24
昆明悦馨生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention avoids the problem that the flower dregs extracted by the conventional solvent extraction method have dissolved residues, but the extracted extract or base essential oil is inconvenient to store and transport, and is not suitable for industrial production

Method used

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  • A kind of preparation method of natural high-purity gardenia essential oil crystal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1. Resin adsorption treatment: Spray 1000g of fresh gardenia flowers picked in the morning with 1000g of water, put them in a flower storage container, and use resin to absorb the volatile substances in gardenia flowers at normal temperature (20-25°C). Component adsorption for 3h;

[0024] Step 2, the resin after step (1) adsorption is placed in the extractor of 0.5L, CO 2 After the gas is purified by the purifier, it is compressed by the compressor and enters the extractor, so that the pressure in the extractor is kept at 20MPa, the desorption valve is opened, and the air pressure in the desorber is maintained at 5MPa, the temperature in the extractor and desorber 30°C and 35°C, respectively. CO 2 Fully contact with the resin in the extractor, dissolve the adsorbed gardenia fragrance components and analyze it in the resolver to obtain 5.6g oily gardenia head fragrance components;

[0025] Step 3. Use 30mL of ethanol and 60mL of n-hexane to crystallize the 5g of...

Embodiment 2

[0027] Step 1, resin adsorption treatment: spray 1800g of water on 1500g of fresh gardenias picked in the morning, put them in a flower storage container, and use resin to absorb the volatile substances in gardenia flowers at normal temperature (20-25°C). Component adsorption for 4h;

[0028] Step 2, the resin in step 1 is placed in the extractor of 1L, CO 2 After the gas is purified by the purifier, it is compressed by the compressor and enters the extractor, so that the pressure in the extractor is kept at 25MPa, the desorption valve is opened, and the air pressure in the desorber is maintained at 6MPa, the temperature in the extractor and desorber 28°C and 30°C, respectively. CO 2 Fully contact with the resin in the extractor, dissolve the adsorbed gardenia fragrance components and resolve it in the resolver to obtain 8g gardenia head fragrance crude components;

[0029] Step 3. Recrystallize 5 g of Gardenia jasminoides crude components obtained in step 2 with 20 mL of e...

Embodiment 3

[0031] Step 1. Resin adsorption treatment: Spray 2000g of fresh gardenia flowers picked in the morning with 2000g of water, put them in the flower storage container, and use macroporous resin to remove the gardenia flowers from gardenia flowers at normal temperature (20-25°C). Adsorption of volatile components for 3h;

[0032] Step 2, the macroporous resin in step 1 is placed in the extractor of 0.5L, CO 2 After the gas is purified by the purifier, it is compressed by the compressor and enters the extractor, so that the pressure in the extractor is kept at 20MPa, the desorption valve is opened, and the air pressure in the desorber is maintained at 5MPa, the temperature in the extractor and desorber 28°C and 35°C, respectively. CO 2 Fully contact with the resin in the extractor, dissolve the adsorbed gardenia fragrance components and resolve it in the resolver to obtain 8g gardenia head fragrance crude components;

[0033]Step 3. Recrystallize the 8 g of gardenia head fragra...

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Abstract

The invention discloses a preparation method of a natural high-purity cape jasmine flower essential oil crystal. The preparation method comprises the following steps: firstly, spraying water on fresh picked cape jasmine flowers and then putting into a fresh flower container for later use; secondly, adsorbing volatile components in the fresh cape jasmine flowers by adopting resin at room temperature; thirdly, putting resin adsorbed with cape jasmine flower head volatile in the first step into extraction equipment, and carrying out CO2 supercritical extraction to obtain an oily cape jasmine flower head volatile coarse component; fourthly, dissolving the oily cape jasmine flower head volatile coarse component by adopting the organic solvent, allowing standing still and crystallizing at low temperature, and filtering to obtain the cape jasmine flower essential oil crystal. The essential oil crystal provided by the invention is good in color and is convenient for taking out and transporting; the natural high-purity cape jasmine flower essential oil crystal is recrystallized under the low-temperature condition, so that the yield is increased, and impurities are reduced.

Description

technical field [0001] The invention belongs to the technical field of gardenia essential oil preparation, and in particular relates to a preparation method of natural high-purity gardenia essential oil crystals. Background technique [0002] Gardenia (Gardenia jasminoides), also known as yellow gardenia, jade lotus, white toad flower, is a plant of Rubiaceae Gardenia. It likes a warm, humid and sunny environment, more cold-tolerant, but afraid of stagnant water, suitable for growth in loose, fertile and acidic sandy loam. It is mainly distributed in the eastern, central and southern parts of my country, and also in Vietnam and Japan. Gardenia is an evergreen shrub with bushy branches, gray trunk and green branchlets. The leaves are evergreen in four seasons, opposite or trilobed, with short stalks, leathery and shiny, obovate or oblong-obovate, apex acuminate, shaped like rabbit ears; flowers axillary, with short stems, corolla base tube-shaped, Curly when unopened, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/025
Inventor 孟丽芬刘祥义叶志恒胡翔飞
Owner 昆明悦馨生物科技有限公司
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