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Extraction method of peony flower essential oil

A technology of peony essential oil and extraction method, applied in the directions of essential oil/spice, fat production, etc., can solve the problems of few active ingredients and low extraction rate, and achieve the effects of improved extraction rate, high extraction rate and good release

Inactive Publication Date: 2018-03-27
安徽心缘康生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the extraction rate of essential oils extracted from peony flowers is low, and the active ingredients are few, so the extraction method needs to be further improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of extracting method of peony flower essential oil that the present invention proposes, comprises the following steps:

[0020] S1. Pick fresh peony flowers, wash them with water, and drain the surface moisture;

[0021] S2. Put the peony flower into the freezer for freezing treatment, crush it, add it to the grinder for freezing shearing and grinding, and obtain the grinding material;

[0022] S3, thawing the ground material naturally at room temperature;

[0023] S4, vacuum freeze-drying the thawed peony flower;

[0024] S5, adding the dried peony to CO 2 A supercritical extraction tank uses 95% ethanol as an entrainer for extraction to obtain peony flower extract, which is then distilled under reduced pressure to obtain peony essential oil.

Embodiment 2

[0026] A kind of extracting method of peony flower essential oil that the present invention proposes, comprises the following steps:

[0027] S1. Pick fresh peony flowers, wash them with water, and drain the surface moisture;

[0028] S2. Put the peony flower into the freezer for freezing treatment at -18°C for 8 hours, crush it, add it to the grinder for freeze-shear grinding at -10°C, and use dry ice as the coolant to obtain the ground material;

[0029] S3, thawing the ground material naturally at room temperature;

[0030] S4, vacuum freeze-drying the thawed peony flower;

[0031] S5, adding the dried peony to CO 2 Supercritical extraction tank, using 95% ethanol as an entrainer, the entrainer is 1 times the quality of the initial peony flower, extraction, the extraction process is: the temperature of the extraction tank is 37 ° C, the extraction pressure is 20Mpa, CO 2 The flow rate is 15L / h, the extraction time is 2h, the temperature of the separation tank is 47°C, an...

Embodiment 3

[0033] A kind of extracting method of peony flower essential oil that the present invention proposes, comprises the following steps:

[0034] S1. Pick fresh peony flowers, wash them with water, and drain the surface moisture;

[0035] S2. Put the peony flower into the freezer for freezing treatment at -22°C for 9 hours, crush it, add it to a grinder for freeze-shear grinding at -8°C, and use dry ice as a coolant to obtain ground materials;

[0036] S3, thawing the ground material naturally at room temperature;

[0037] S4. Repeat the freezing-grinding-thawing operation of the peony flower after thawing, and then carry out vacuum freeze-drying;

[0038] S5, adding the dried peony to CO 2 Supercritical extraction tank, using 95% ethanol as an entrainer, the entrainer is 1.5 times the quality of the initial peony flower, extraction, the extraction process is: the temperature of the extraction tank is 40 ° C, the extraction pressure is 22Mpa, CO 2 The flow rate is 18L / h, the ex...

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Abstract

The invention discloses an extraction method of peony flower essential oil, and relates to the technical field of peony flower extraction. The extraction method comprises the following steps: pickingfresh peony flower, cleaning with water, draining the surface off; placing the peony flower into a freezing room for freezing and smashing, adding the smashed peony flower into a grinder for freezing,cutting and grinding to obtain ground materials; naturally unfreezing the ground material at the room temperature; freezing and drying the unfrozen peony flower in vacuum; adding the dried peony flower into a CO2 supercritical extraction tank, performing extraction with 95 percent ethanol serving as a co-solvent to obtain the peony flower extract; performing distillation at reduced pressure to obtain the peony flower essential oil. By adopting the extraction method, the peony flower essential oil is high in extraction rate, and has a plurality of active components, compared with the direct implementation of CO2 supercritical extraction on the fresh flower, the extraction method has the advantages that the extraction rate is increased by 67 percent.

Description

technical field [0001] The invention relates to the technical field of peony extraction, in particular to a method for extracting peony essential oil. Background technique [0002] Peony, also known as "Fuguihua" and "Two Hundred Golds", belongs to Paeoniaceae and is an important traditional famous flower in my country. There are many varieties of peony, with huge corolla, gorgeous flower posture, bright color, fragrant color and flavor, elegant and luxurious, and is known as the "king of flowers". Peony not only has high ornamental value, but also has very important medicinal value. Therefore, the comprehensive development and application of peony flowers has become a research hotspot in recent years. Peony essential oil is a volatile oily liquid extracted and separated from peony flowers, and most of the volatile components are substances with floral, fruity and other aromatic odors. In addition, peony essential oil is rich in a variety of amino acids and trace elements...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/025C11B9/027
Inventor 沈智配
Owner 安徽心缘康生物科技有限公司
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