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Peony essential oil extraction method

An extraction method, peony essential oil technology, applied in the direction of essential oil/spices, fat production, etc., can solve the problems of large loss of separation kettle, large investment in equipment costs, and large loss of essential oil, so as to improve extraction efficiency and oil yield, avoid Effects of over-dehydration and spoilage

Pending Publication Date: 2020-03-24
HEZE RUIPU PENOY IND TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can effectively protect the thermal sensitivity of the essential oil, the easily oxidized components are not destroyed, and there is no solvent residue, but due to the long fluid circulation line in the supercritical fluid extraction process, the loss of essential oil is large, and the loss in the separation tank is also large, so The oil yield is not very high
At the same time, this method has high technical requirements and large investment in equipment costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of peony essential oil extraction method that present embodiment provides, comprises the steps:

[0020] S1. Pick fresh peony flowers from blooming to early blooming at 6 o'clock in the morning, pack them as they are picked, and put them in a constant temperature car for transportation. The temperature inside the car is 0.5°C;

[0021] S2. Transport the peony to the pretreatment workshop to remove the pedicel, receptacle, stamen and pistil to obtain pure peony petals, wherein the temperature in the pretreatment workshop is 3°C;

[0022] S3. The original petals do not need to be crushed, baked, ground, etc., and the pure peony petals are directly transported to the extraction tank under the condition of temperature ≤ 0°C, using butane or propane as the fluid, and absolute ethanol as the entrainer for extraction. Recover the solvent to obtain peony flower extract paste, wherein the extraction temperature is 30°C, the extraction pressure is 0.2MPa, and the extractio...

Embodiment 2

[0026] S1. Pick fresh peony flowers from blooming to early blooming at 8 o'clock in the morning, pack them as they are picked, and put them in a constant temperature car for transportation. The temperature inside the car is 1.7°C;

[0027] S2. Transport the peony to the pretreatment workshop to remove the pedicel, receptacle, stamen and pistil to obtain pure peony petals, wherein the temperature in the pretreatment workshop is 6.5°C;

[0028] S3. The original petals do not need to be crushed, baked, ground, etc., and the pure peony petals are directly transported to the extraction tank under the condition of temperature ≤ 0°C, using butane or propane as the fluid, and absolute ethanol as the entrainer for extraction. Recover the solvent to obtain peony flower extract paste, wherein the extraction temperature is 39°C, the extraction pressure is 3.1MPa, and the extraction time is 20.5h;

[0029] S4, inject the extraction paste into the distillation tank, inject absolute ethanol ...

Embodiment 3

[0032] S1. At 10 o'clock in the morning, fresh peony flowers from blooming to early blooming are picked, packed as they are picked, and transported in a constant temperature car with a temperature of 3°C;

[0033] S2. Transport the peony flower to the pretreatment workshop to remove the pedicel, receptacle, stamen and pistil to obtain pure peony petals, wherein the temperature in the pretreatment workshop is 10°C;

[0034] S3. The original petals do not need to be crushed, baked, ground, etc., and the pure peony petals are directly transported to the extraction tank under the condition of temperature ≤ 0°C, using butane or propane as the fluid, and absolute ethanol as the entrainer for extraction. Recover the solvent to obtain peony flower extract paste, wherein the extraction temperature is 48°C, the extraction pressure is 6MPa, and the extraction time is 24h;

[0035] S4, inject the extraction paste into the distillation tank, inject absolute ethanol in the distillation tank...

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PUM

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Abstract

The invention discloses a peony essential oil extraction method. The method comprises the following steps: 1, picking fresh peony flowers, loading the peony flowers while picking, and loading the peony flowers into a constant-temperature vehicle for transportation; 2, conveying the peony flowers into a pretreatment workshop, and removing pedicels, receptacles, stamens and pistils to obtain pure peony petals; 3, directly conveying the pure peony petals into an extraction tank without crushing, drying, grinding and other treatments, and carrying out extraction to obtain a peony flower extractionpaste; and 4, injecting the extraction paste into a distillation tank, and carrying out reduced pressure distillation to obtain peony flower essential oil. The fresh peony flowers which are just picked are used as the raw material, and low temperature is kept in the transportation process, so that the quality of the peony flowers is guaranteed before extraction, and the problems of excessive dehydration and deterioration of the peony flowers are avoided; butane or propane is used as a fluid, and anhydrous ethanol is used as an entrainer for extraction, so that the extraction efficiency and the oil yield are improved; and the anhydrous ethanol is used for reduced pressure distillation to well separate out the peony essential oil, and the anhydrous ethanol can be recycled to realize environmental protection and energy conservation.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a method for extracting peony essential oil. Background technique [0002] Peony essential oil is a volatile oily liquid extracted from the flowers, leaves, roots, and fruits of peony, and peony essential oil extracted from flowers is particularly expensive. According to statistics, to produce 1kg of peony essential oil, 6000kg of peony petals are needed. Peony essential oil is rich in a variety of amino acids and trace elements needed by the human body. It has the functions of resisting sensitivity, improving blood circulation, beautifying the skin, promoting cell regeneration, alleviating skin aging, regulating skin problems, and balancing hormone secretion in women. In addition, peony essential oil is rich in natural fragrance substances, such as: linalool, nerol, geraniol, nonanal, etc. These natural compounds can be used as natural additives in food, beverage and ...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/025C11B9/027
Inventor 赵孝庆
Owner HEZE RUIPU PENOY IND TECH DEV
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