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Method for extracting thuja sutchuenensis essential oil by utilizing steam distillation method

A technology of steam distillation and thuja essential oil, which is applied in essential oils/fragrances, resistance to vector-borne diseases, and fat production. It can solve the problems of unfavorable resource utilization, branches and leaves that can only be discarded, etc., and achieve low cost and volatile oil. The effect of many ingredients and high extraction rate

Pending Publication Date: 2022-08-02
重庆市药物种植研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the branches and leaves of thuja need to be trimmed regularly, and the trimmed branches and leaves can only be discarded, which is not conducive to the full utilization of resources

Method used

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  • Method for extracting thuja sutchuenensis essential oil by utilizing steam distillation method
  • Method for extracting thuja sutchuenensis essential oil by utilizing steam distillation method
  • Method for extracting thuja sutchuenensis essential oil by utilizing steam distillation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method that utilizes steam distillation to extract Thuja essential oil provided by this application comprises the steps:

[0034] 1) Material collection, transportation and storage: Collect the waste branches and leaves generated during the production of cuttings, store them in an insulating foam box, transport them to the production base, cut off the small branches and leaves, and seal them at low temperature (2-6°C) for future use;

[0035] 2) Raw material pretreatment: take refrigerated thuja branches and leaves and place them in a cool and ventilated place to turn and air for 2 hours, until the water content of the branches and leaves drops to 81% of the natural water content, and all the branches and leaves are free of water;

[0036] 3) powdering: after the dried branches are cut into small sections of 2-5cm, pulverize with a traditional Chinese medicine powdering machine for 15s to obtain thuja powder with a particle size of 10-30 objects;

[0037] 4) Water d...

Embodiment 2

[0040] The method that utilizes steam distillation to extract Thuja essential oil provided by this application comprises the steps:

[0041] 1) Material collection, transportation and storage: prune the small branches in the central part of the thuja canopy with dense branches and leaves, so as to achieve good ventilation and not change the overall shape of the crown, and store them in a thermal insulation foam box. Branches and leaves, sealed and stored at low temperature (2-6°C) for later use;

[0042] 2) Raw material pretreatment: Take the thuja branches and leaves preserved in cold storage and place them in a cool and ventilated place to turn and dry for 1 hour, until the water content of the branches and leaves drops to 85% of the natural water content, and all the branches and leaves are free of water;

[0043] 3) powdering: after the dried branches are cut into small sections of 2-5cm, pulverize with a traditional Chinese medicine powdering machine for 10s to obtain a t...

Embodiment 3

[0047] The method that utilizes steam distillation to extract Thuja essential oil provided by this application comprises the steps:

[0048] 1) Material collection, transportation and storage: prune the small branches in the middle of the thuja canopy with dense branches and leaves, so as to achieve good ventilation and not change the overall shape of the crown. Branches and leaves, sealed and stored at low temperature (2-6°C) for later use;

[0049] 2) Raw material pretreatment: take refrigerated thuja branches and leaves and place them in a cool and ventilated place for 3 hours, until the water content of the branches and leaves drops to 75% of the natural water content, and all the branches and leaves are free of water;

[0050] 3) powdering: after the dried branches are cut into small sections of 2-5cm, pulverize with a traditional Chinese medicine powdering machine for 20s to obtain thuja powder with a particle size of 10-30 objects;

[0051] 4) Water distillation: add wat...

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Abstract

The invention discloses a method for extracting thuja sutchuenensis essential oil by using a steam distillation method, which comprises the following steps: 1) taking fresh thuja sutchuenensis branches and leaves as materials, airing and crushing to obtain non-agglomerated and loose thuja sutchuenensis powder; (2) putting the thuja sutchuenensis powder obtained in the step (1) into an overwater distillation device, and distilling at the temperature of 95-105 DEG C for 1.5-2.5 hours to obtain reflux liquid; and 3) introducing the reflux liquid obtained in the step 2) into an oil-water separator for oil-water separation, separating the upper oily liquid by using a physical method, and absorbing excessive water by using anhydrous sodium sulfate to obtain the thuja sutchuenensis essential oil. The method for extracting the thuja sutchuenensis essential oil by using the steam distillation method has the characteristics of low cost, simplicity, feasibility, high yield of extracted thuja sutchuenensis essential oil, multiple volatile oil components and high functional active components, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of plant essential oil distillation and processing, and in particular relates to a method for extracting thuja essential oil by a steam distillation method. Background technique [0002] Thuja (Thuja sutchuenensis Franch.) belongs to the genus Thuja, evergreen tree, with fresh aroma of branches and leaves, fragrant wood and resistance to decay. It is a special aromatic plant in the Daba Mountains of Sichuan and Chongqing in my country. It was declared extinct in the wild by IUCN. After the discovery, it will be listed as a national first-class protected plant in 2021. [0003] The unique fragrance of the branches and leaves of Thuja was the first to be noticed by people. In order to develop its value as an aromatic plant, the chemical composition analysis of its scales, twigs, stems and roots was carried out, and antibacterial experiments were carried out. 7methanoazulene-6-methanol and sutchuenin J containe...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/027Y02A50/30
Inventor 金江群王祥福张万超刘燕琴罗舜徐广王黎
Owner 重庆市药物种植研究所
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