Extraction method of essential oil for keeping natural flower fragrance

A technology of essential oil extraction and floral fragrance, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of loss of top aroma components, low purity of fragrance, incomplete fragrance, etc., to improve quality, increase yield of essential oil, and ensure integrity sexual effect

Inactive Publication Date: 2019-12-20
大冶海通热工技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of serious loss of top aroma components, incomplete fragrance, low fragrance purity and low yield of essential oil in the preparation of essential oil by conventional extraction methods, and to provide a method for extracting essential oil that maintains natural floral fragrance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of essential oil extraction method that keeps natural rose fragrance, comprises the following steps:

[0023] S1, low-temperature quenching pretreatment of fresh rose petals:

[0024] Weigh 20kg of fresh rose petals and immerse them in a liquid nitrogen tank for pretreatment. The treatment time is 60 minutes (determine the treatment time according to the amount of petals), so that the petals are quenched in ultra-low temperature liquid nitrogen to lock the volatile low-boiling aura Element. Through the following cascade low-temperature distillation, the top aroma components are retained to the maximum extent, so that the aroma of essential oils is more complete and full.

[0025] S2, the pretreated petals are pulverized by physical wall breaking:

[0026] Transfer the pretreated petals to a wall breaking machine for jet crushing, adjust the temperature inside the machine to -5°C, feed high-speed air flow, the jet crushing pressure is 1.2 MPa, and the crushing t...

Embodiment 2

[0034] A kind of essential oil extraction method that keeps natural rose fragrance, comprises the following steps:

[0035] S1, low-temperature quenching pretreatment of fresh rose petals:

[0036] Take by weighing 20kg of fresh rose petals and immerse them in a liquid nitrogen tank for pretreatment. The treatment time is 10 minutes, so that the petals are quenched in ultra-low temperature liquid nitrogen, and the volatile low-boiling aura components are locked. Through the following third-stage cascade low-temperature distillation, the top aroma components are retained to the maximum extent, making the aroma of essential oils more complete and full.

[0037] S2, the pretreated petals are pulverized by physical wall breaking:

[0038] Transfer the pretreated petals to a wall-breaking machine for airflow crushing. The temperature inside the machine is adjusted to -20°C, a high-speed airflow is introduced, the airflow crushing pressure is 0.5MPa, and the crushing time is 10min....

Embodiment 3

[0045] A kind of essential oil extraction method that keeps natural rose fragrance, comprises the following steps:

[0046] S1, low-temperature quenching pretreatment of fresh rose petals:

[0047] Weigh 20kg of fresh rose petals and immerse them in a liquid nitrogen tank for pretreatment. The treatment time is 100 minutes, so that the petals are quenched in ultra-low temperature liquid nitrogen to lock the volatile low-boiling aroma components. Through the third step of cascaded low-temperature distillation below, the top aroma components are retained to the greatest extent, making the aroma of essential oils more complete and full.

[0048] S2, the pretreated petals are pulverized by physical wall breaking:

[0049] Transfer the pretreated petals to a wall-breaking machine for airflow crushing. The temperature inside the machine is adjusted to 0°C, high-speed airflow is introduced, the airflow crushing pressure is 1.5MPa, and the crushing time is 20min. The petals broken by...

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PUM

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Abstract

The invention belongs to the technical field of essential oil extraction, and particularly relates to an extraction method of essential oil for keeping natural flower fragrance. The extraction methodof essential oil for keeping natural flower fragrance comprises the following steps: S1, carrying out low-temperature quenching pretreatment on fresh petals; S2, crushing the pretreated petals by adopting a physical wall breaking method; S3, carrying out staged distillation on the crushed petal powder; and S4, sequentially carrying out condensing, oil-water separating and dehydrating on the gas-liquid mixed steam distilled out from each stage to prepare the essential oil.

Description

technical field [0001] The invention belongs to the technical field of essential oil extraction, in particular to an essential oil extraction method for maintaining natural flower fragrance. Background technique [0002] At present, the most commonly used method of rose essential oil is steam distillation, and the distillation yield of this method is low, only about 0.02%. The loss of the fragrant part is more, the color of the extracted essential oil is darker, and the quality is greatly reduced. Organic solvent extraction is also a common process for extracting essential oils. It can extract low-boiling and high-boiling components in roses and reduce the loss of aromatic oil components. However, the extraction time is long, the top note is insufficient, and solvent residues are prone to occur. [0003] "Extraction method of rose essential oil and rose essential oil", application number: 201810835419.7, an extraction method of rose essential oil and rose essential oil, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/027
Inventor 廖玉璠
Owner 大冶海通热工技术有限公司
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