Method for using supercritical carbon dioxide for extraction of chrysanthemum essential oil

A technology of carbon dioxide and chrysanthemum essential oil, which is applied in the directions of essential oils/spices, fat production, etc., can solve the problems of reagent residue, low purity, high energy consumption, etc., and achieve the effects of convenient operation, high product purity, and energy consumption.

Active Publication Date: 2014-04-09
黄山神草生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the extraction methods of chrysanthemum essential oil are mainly water extraction and ultrasonic-assisted extraction. This extraction method consumes a lot of energy, and requires the use of n-hexane, sodium sulfate, ethanol and other reagents, which is likely to cause reagent residues and low purity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Dry the picked fresh chrysanthemums at less than 60°C.

[0024] 2. Crush the dried chrysanthemums and control them at 20 mesh.

[0025] 3. Weigh 400g of the pulverized material and put it into a supercritical extraction kettle, press food-grade high-purity carbon dioxide from the bottom of the extraction kettle, add 200ml of absolute ethanol through a carrier pump half an hour later, and put it into a supercritical extraction kettle at 30Mpa, 50℃ state, extract for 3 hours.

[0026] 4. The carbon dioxide with the chrysanthemum essential oil flowing out from the extraction kettle top enters the analysis kettle, and resolves at 5.5Mpa at 40° C. to obtain 300 ml of the chrysanthemum essential oil crude product dope.

[0027] 5. After putting the essential oil concentrate into the container, heat it slightly in hot water at 50°C for 4 minutes to fully dissolve the extracted components, then put it into the freezer and freeze it at -18°C for 12 hours.

[0028] 6. After ...

Embodiment 2

[0031] 1. Dry the picked fresh chrysanthemums at less than 60°C.

[0032] 2. Crush the dried chrysanthemums and control them at 20 mesh.

[0033] 3. Weigh 400g of the pulverized material and put it into a supercritical extraction kettle, press food-grade high-purity carbon dioxide from the bottom of the extraction kettle, add 200ml of absolute ethanol through a carrier pump after half an hour, and put it into a supercritical extraction kettle at 25Mpa, 50℃ state, extract for 3 hours.

[0034] 4. The carbon dioxide with the chrysanthemum essential oil flowing out from the upper part of the extraction kettle enters the analysis kettle, and resolves at 5.5Mpa at 40° C. to obtain 200 ml of the chrysanthemum essential oil crude product dope.

[0035] 5. After putting the essential oil concentrate into the container, heat it slightly in hot water at 50°C for 4 minutes to fully dissolve the extracted components, then put it into the freezer and freeze it at -18°C for 12 hours.

[0...

Embodiment 3

[0039] 1. Dry the picked fresh chrysanthemums at less than 60°C.

[0040] 2. Crush the dried chrysanthemums and control them at 20 mesh.

[0041] 3. Weigh 400g of the pulverized material and put it into a supercritical extraction kettle, press food-grade high-purity carbon dioxide from the bottom of the extraction kettle, add 200ml of absolute ethanol through a carrier pump half an hour later, and put it into a supercritical extraction kettle at 20Mpa, 50℃ state, extract for 3 hours.

[0042] 4. The carbon dioxide with the chrysanthemum essential oil flowing out from the upper part of the extraction kettle enters the analysis kettle, and resolves at 5.5Mpa at 40° C. to obtain 200 ml of the chrysanthemum essential oil crude product dope.

[0043] 5. After putting the essential oil concentrate into the container, heat it slightly in hot water at 50°C for 4 minutes to fully dissolve the extracted components, then put it into the freezer and freeze it at -18°C for 12 hours.

[0...

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Abstract

The invention discloses a method for using supercritical carbon dioxide for extraction of chrysanthemum essential oil, dry and crushed chrysanthemum is used as a raw material, the supercritical carbon dioxide uses anhydrous ethanol as an entrainer to extract a chamomile essential oil raw thick liquid, then the raw thick liquid is frozen, filtered and concentrated to obtain the high purity chamomile essential oil. The high purity chamomile essential oil product has high extraction yield, high purity, no toxicity, no residue, pure color, stable characters, pure naturalness and other characteristics, and is simple in process and low in energy consumption.

Description

technical field [0001] The invention relates to a method for extracting vegetable oil, in particular to a method for extracting chrysanthemum essential oil with supercritical carbon dioxide. Background technique [0002] Chrysanthemum is a plant of Compositae, a commonly used traditional Chinese medicine in China, which has the effects of dispelling wind, clearing away heat, improving eyesight and detoxifying. It mainly treats symptoms such as headache, dizziness, red eyes, dysphoria in the heart and chest, furunculosis, and swelling. Modern pharmacological studies have shown that chrysanthemum has various pharmacological activities such as treating coronary heart disease, lowering blood pressure, preventing hyperlipidemia, antibacterial, antiviral, anti-inflammatory, and anti-aging. Chinese medicinal chrysanthemum has eight main commodity sources in the market, namely Hangju, Boju, Gongju, Chuju, Qiju, Huaiju, Jiju, Huangju, and "Chinese Pharmacopoeia" Part I (2000 edition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
Inventor 黄荣峰马洪科徐兵
Owner 黄山神草生物科技有限公司
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