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A method for extracting rose essential oil by ultra-high pressure combined with steam distillation

A technology of steam distillation and rose essential oil, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of increased thermal decomposition loss impurity content, increased methyl eugenol content, poor wall breaking effect, etc., and achieves an increased degree of destruction Larger, higher yield and lower energy consumption

Active Publication Date: 2019-02-19
济南锦兮生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to obtain a higher extraction rate due to poor wall-breaking effect, and the yield of essential oil is generally about 0.02%, and because this method needs to be distilled at a higher temperature for several hours, it is easy to cause some components in the essential oil to heat up. Decomposition loss and increased content of some impurities, especially methyl eugenol content

Method used

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  • A method for extracting rose essential oil by ultra-high pressure combined with steam distillation
  • A method for extracting rose essential oil by ultra-high pressure combined with steam distillation
  • A method for extracting rose essential oil by ultra-high pressure combined with steam distillation

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Experimental program
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Effect test

Embodiment 1

[0036]For fresh Pingyin roses, add a citric acid aqueous solution with a mass concentration of 0.5% at a ratio of material to liquid ratio of 1.0:2.0 (by weight), mix evenly, seal a polyethylene retort bag at the level of the liquid surface, and place under pressure Ultrasonic extraction kettle; pressure 500MPa, holding time 6min, temperature 25°C. After the end of the ultra-high pressure, put the material liquid in the sealed bag into the distillation bottle for steam distillation, and use deionized water as the steam source; control the heating temperature to 102°C to ensure the continuous and stable output of water vapor; set the distillation bottle The heat preservation temperature is 99°C to control the evaporation rate in the distillation bottle; the cooling water circulation device is used to control the flow rate and temperature of the condensed water to control the condensation rate; the distillation time is 2h; the first drop of distillate flowing out from the condens...

Embodiment 2

[0045] For fresh Pingyin roses, add a citric acid aqueous solution with a mass concentration of 1% at a ratio of material to liquid ratio of 1.0:1.5 (by weight), mix evenly, seal the cooking bag at the level of the liquid level, and place it under pressure for ultrasonic extraction In the kettle; the pressure is 300MPa, the holding time is 8min, and the temperature is 30°C. After the end of the ultra-high pressure, put the material liquid in the sealed bag into the distillation bottle for steam distillation. Deionized water is used as the steam source; the heating temperature is controlled to 102°C to ensure the continuous and stable output of water vapor; the heat preservation temperature of the distillation flask is set to 99°C to control the evaporation rate in the distillation flask; the cooling water circulation device is used to control the flow rate of condensed water and temperature to control the condensation rate; the distillation time is 2h; the first drop of distil...

Embodiment 3

[0049] For fresh Pingyin roses, add a citric acid aqueous solution with a mass concentration of 2% at a ratio of material to liquid ratio of 1.0:2.5 (by weight), mix well, seal the retort bag at the level of the liquid level, and place it under pressure for ultrasonic extraction In the kettle; the pressure is 100MPa, the holding time is 6min, and the temperature is 30°C. After the end of the ultra-high pressure, put the material liquid in the sealed bag into the distillation bottle for steam distillation. Deionized water is used as the steam source; the heating temperature is controlled to 102°C to ensure the continuous and stable output of water vapor; the heat preservation temperature of the distillation flask is set to 99°C to control the evaporation rate in the distillation flask; the cooling water circulation device is used to control the flow rate of condensed water and temperature to control the condensation rate; the distillation time is 2h; the first drop of distillat...

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Abstract

The invention discloses a method for extracting rose essential oil through combination of ultrahigh pressure and steam distillation. The method comprises steps as follows: (1), ultrahigh pressure pretreatment: fresh roses are put in a retort pouch, a citric acid aqueous solution is added to the retort pouch, and the retort pouch is sealed after uniform mixing; (2), the retort pouch is put in ultrahigh pressure equipment for ultrahigh pressure treatment; (3), after ultrahigh pressure treatment ends, steam distillation is performed. The yield of the rose essential oil is increased by 4.0%-119.05% in the same distillation time by means of an ultrahigh pressure and steam distillation combination technology while compared with that by means of an ordinary steam distillation technology; the content of methyl eugenol in the essential oil is reduced by 75.9%, the extraction speed is high, the quality of the essential oil is high and energy consumption is reduced.

Description

technical field [0001] The invention relates to a method for extracting rose essential oil, in particular to a method for extracting rose essential oil in an acidic medium with ultra-high pressure combined with steam distillation. Background technique [0002] Rose essential oil is a precious natural essential oil extracted from rose flowers. It is expensive and is known as "liquid gold" and "queen of essential oils". Rose essential oil contains aromatic substances such as citronellol, geraniol, linalool, phenylethyl alcohol, nerol, eugenol, farnesol and its esters, sesquiterpene and its derivatives, and is the most commonly used The precious floral fragrance raw material is widely used in the fields of food, high-end cosmetics and tobacco. At present, there are traditional steam distillation extraction and organic solvent extraction in the extraction of rose essential oil; there are also vacuum distillation, solvent extraction and ultrasonic, microwave, etc. 2 Supercritic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
CPCC11B9/02C11B9/027
Inventor 唐琳黄俊魏徐雯雯洪丹奇
Owner 济南锦兮生物科技有限公司
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