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Method for extracting peony seed essential oil based on solvent method

A solvent method and technology of peony, which is applied in the field of extracting the essential oil of peony seeds based on the solvent method, can solve the problems of inability to spread and spread, and achieve the effects of high extraction efficiency, reduction of pine tree mortality, and short operation time

Pending Publication Date: 2022-05-13
中科农林科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although pine xylophilus is a serious hazard, it has a fatal weakness - it cannot spread by itself, and must rely on vector insects such as the pine wood nematode to spread and spread

Method used

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  • Method for extracting peony seed essential oil based on solvent method
  • Method for extracting peony seed essential oil based on solvent method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The method for extracting the essential oil of Paeoniae officinalis based on the solvent method described in the present embodiment comprises the following steps:

[0028] (1) Remove impurities from the peony seeds, put them into the sieving equipment, put the sieved peony seeds into the drying equipment, heat them to 66°C for 18 hours, and then put them into the crushing equipment to crush and sieve to obtain about 60 mesh peony seeds, set aside;

[0029] (2) Take 100kg of the above peony seed fragments and place them in a Soxhlet extraction device, and add an organic extraction solvent (the volume ratio of ethyl acetate, ethanol and petroleum ether is 1:2:5) according to the mass ratio of 1:4. Dispersing and soaking for 1 hour, then raising the temperature to 80°C for heat preservation and extraction for 3 hours, collecting the extract containing the crude oil of Paeoniae officinalis, concentrating under reduced pressure, recovering the organic extraction solvent, and...

Embodiment 2

[0033] The method for extracting the essential oil of Paeoniae officinalis based on the solvent method described in the present embodiment comprises the following steps:

[0034] (1) Peony seeds are removed from impurities and put into sieving equipment. The sieved peony seeds are put into drying equipment and heated to 60°C for drying for 18 hours, and then put into crushing equipment to crush and sieve to obtain 50-100 Shredded peony seeds of about 1 mesh, set aside;

[0035] (2) Take 100kg of the above peony seed fragments and place them in a Soxhlet extraction device, and add an organic extraction solvent (the volume ratio of ethyl acetate, ethanol and petroleum ether is 1:2:5) according to the mass ratio of 1:4. Dispersing and soaking for 1 hour, then raising the temperature to 85°C for heat preservation and extraction for 3 hours, collecting the extract containing the crude oil of Paeoniae officinalis, concentrating under reduced pressure, recovering the organic extracti...

Embodiment 3

[0039] The method for extracting the essential oil of Paeoniae officinalis based on the solvent method described in the present embodiment comprises the following steps:

[0040] (1) Remove impurities from the peony seeds, put them into the sieving equipment, put the sieved peony seeds into the drying equipment and heat them to 40°C for sufficient drying, and then put them into the crushing equipment to crush and sieve to obtain about 80 mesh Crushed peony seeds, set aside;

[0041] (2) Take 100kg of the above peony seed fragments and place them in a Soxhlet extraction device, and add an organic extraction solvent (the volume ratio of ethyl acetate, ethanol and petroleum ether is 1:2:5) according to the mass ratio of 1:3. Dispersing and soaking for 1 hour, then raising the temperature to 70°C for heat preservation and extraction for 3 hours, collecting the extract containing the crude oil of Paeoniae officinalis and concentrating under reduced pressure, recovering the organic ...

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Abstract

The invention belongs to the technical field of plant extracts, particularly relates to a method for extracting paeonia lactiflora seed essential oil by a subcritical water extraction technology, and further discloses application of the paeonia lactiflora seed essential oil. According to the method for extracting the Chinese herbaceous peony seed essential oil, the Chinese herbaceous peony seed essential oil is extracted by combining an organic solvent method with a molecular distillation method, and Soxhlet extraction is performed by optimizing each operation parameter and selecting a mixed solvent of ethyl acetate, ethanol and petroleum ether, so that the aims of efficiently extracting and separating the Chinese herbaceous peony seed essential oil and realizing high purity of an extracted product are fulfilled; the method has the advantages of simplicity in operation, short operation time and relatively high extraction efficiency.

Description

technical field [0001] The invention belongs to the technical field of plant extracts, in particular to a method for extracting essential oil of peony seeds based on a solvent method, and further discloses the application thereof. Background technique [0002] The genus Paeonia (Paeonia L.) is a shrub or herb of Ranunculaceae (Ranunculacea). There are about 35 species in the world, which are divided into 3 groups, namely the peony group, the North American peony group and the peony group. The Paeoniae group is the largest group in the genus. This group is a herbaceous type, containing about 25 species, distributed in the Eurasian continent, and there are about 8 species and 5 varieties in my country. At present, the main varieties of Paeoniaceae in my country include Paeoniae officinalis (P.lactiflora), Chuanchishao (P.veitchii), Grass Paeoniae (P.obovata), Xinjiang Paeoniae (P.anomala subsp.anomala), and Multi-flowered Paeoniae (P. emodi), white peony (P.sterniana), beautif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/32A01P5/00A01P7/04C11B9/02
CPCA01N65/32A01N65/00C11B9/022C11B9/025C11B9/027C11B9/02
Inventor 王志伟张亚声王本乾
Owner 中科农林科技有限公司
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