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Supercritical extraction method for rose essential oil

A rose essential oil, rose technology, applied in the directions of essential oil/spice, fat production, etc., can solve the problems of high production cost, high market price, complicated process, etc., to avoid oxidation and rancidity, short heating time, and operating temperature. low effect

Inactive Publication Date: 2015-09-30
洛阳国花坊牡丹生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the chemical industry, it can be used to produce high-grade spices and high-grade cosmetics. The market price is expensive and the demand is very huge; however, the existing technology has low extraction efficiency, complicated process and environmental pollution for rose essential oil, so it is urgent to develop a new rose. The extraction process of flower essential oil, transforming rose flower into a new value-added development direction
[0003] A kind of kiwi fruit kernel oil and its extraction method disclosed in Chinese patent authorization announcement number CN1483795 adopt supercritical CO2 extraction technology, the quality of the obtained essential oil is not high, and the process is complicated, the extraction time is long, the production cost is high, and the yield is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step 1: Remove impurities from fresh roses, put them in vacuum freeze-drying equipment for 20-30 hours, take them out, put them into crushing equipment, crush and sieve, and obtain 55-mesh rose scraps for later use;

[0016] Put 300kg of rose fragments into the extraction kettle and start the extraction. The extraction temperature is 40°C, the extraction pressure is 27Mpa, and the extraction time is 140min. Close the extractor, check to ensure that it is tightly sealed, and use a high-pressure pump to remove the liquid CO2 in the storage tank. Pump into the vaporizer, gasify into a critical fluid state, and then enter the extractor to extract the rose fragments. Set the pressure in the extractor to 15Mpa and the temperature to 35°C. The mixed fluid of extracted CO2 and rose essential oil Enter the separator for decompression separation. The pressure in the separator is 6Mpa and the temperature is 37°C. The separated CO2 is liquefied by the liquefier and directly returned...

Embodiment 2

[0020] Step 1: Remove impurities from fresh roses, put them into vacuum freeze-drying equipment for 24 hours, take them out, put them into crushing equipment, crush and sieve, and obtain 56-mesh rose petals, which are set aside;

[0021] Put 350kg of rose fragments into the extraction kettle and start the extraction. The extraction temperature is 39°C, the extraction pressure is 26Mpa, and the extraction time is 128min. Close the extractor, check to ensure that it is tightly sealed, and use a high-pressure pump to remove the liquid CO2 in the storage tank. Pump into the vaporizer, gasify into a critical fluid state, and then enter the extractor to extract the rose fragments. Set the pressure in the extractor to 18Mpa and the temperature to 33°C. The mixed fluid of extracted CO2 and rose essential oil Enter the separator for decompression separation. The pressure in the separator is 6Mpa and the temperature is 34°C. The separated CO2 is liquefied by the liquefier and directly re...

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Abstract

The invention discloses a supercritical extraction method for rose essential oil. The supercritical extraction method comprises the steps of cleaning, freeze-drying, supercritical extraction and molecular distillation. The supercritical extraction method is low in operation temperature, short in heating time, capable of avoiding the oxidization and rancidification of oil caused by a high temperature, high in separation degree and product yield, and capable of lowering the acid value of the oil due to the molecular distillation; the supercritical extraction method realizes the purposes of efficient extraction, separation, no impurities and high extracted product purity, has a simple operation process and a short extraction time, reduces the cost, and increases the production efficiency.

Description

technical field [0001] The invention relates to a method for extracting rose essential oil, in particular to a supercritical extraction method for rose essential oil. Background technique [0002] Rose essential oil contains a large amount of citronellol, geraniol, nerol and other compounds. It has long been one of the popular flower-type essential oils in the international food industry market. It can be mainly used in beverages, candies, ice cream, and seasonings , Health food. In the chemical industry, it can be used to produce high-grade spices and high-grade cosmetics. The market price is expensive and the demand is very huge; however, the existing technology has low extraction efficiency, complicated process and environmental pollution for rose essential oil, so it is urgent to develop a new rose. The extraction process of flower essential oil transforms rose flower into a new value-added development direction. [0003] A kind of kiwi fruit kernel oil and its extract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 马魁瑞
Owner 洛阳国花坊牡丹生物科技有限公司
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