CN1144102A - Process for extracting zingiber oil by using supercritical CO2 - Google Patents
Process for extracting zingiber oil by using supercritical CO2 Download PDFInfo
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- CN1144102A CN1144102A CN 95108792 CN95108792A CN1144102A CN 1144102 A CN1144102 A CN 1144102A CN 95108792 CN95108792 CN 95108792 CN 95108792 A CN95108792 A CN 95108792A CN 1144102 A CN1144102 A CN 1144102A
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- supercritical
- extracting
- zingiberis corallini
- oil
- rhizoma zingiberis
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Abstract
The preparation method of coral ginger oil is as follows: the dried coral ginger is pulverized to a certain grain size, then the broken coral ginger granules are extracted under the conditions of 7MPa-32MPa of pressure and 25-65 deg.C of temp. in the extracting tank by using supercritical CO2, then are separated under the conditions of 3MPa-6MPa of pressure and 0-55 deg.C of temp. in the separating tank so as to obtain the invented coral ginger oil. Said invented method is rapid in extracting speed, high in extracting efficiency, good in its finished oil quality, and can completely retain its medicinal activity.
Description
The present invention relates to the method for oil and grease extracting from plant, specifically, relate to and use supercritical CO
2The method of Extraction oil from Rhizoma Zingiberis corallini.
Rhizoma Zingiberis corallini (2ingiber Corallinum Hance), the cloudy Rhizoma Zingiberis Recens of popular name is a zingiberaceous plant, its rhizome can be used as medicine, and the subduing swelling and detoxicating effect is arranged, and among the peoplely is used for treating flu, lung cold cough and abdominal pain diarrhea; Its quintessence oil adds in health product and the cosmetics and goes, and can prevent and treat such as tinea class dermatopathy.Chinese patent application 95103907.5 has been put down in writing some application process of Rhizoma Zingiberis corallini.The method of extracting volatile oil from Rhizoma Zingiberis corallini has physical method and chemical method, and physical method is used squeezing, steaming and decocting, distillation and vapor extraction etc. always; Chemical method is used organic solvent extraction usually, and organic solvent commonly used is an ethanol, also can use petroleum ether, ether, ethyl acetate etc.The oil product that physical method obtains often contains many impurity components, and is also apt to deteriorate, and extraction ratio is not high yet; The oil product that the chemical method extraction obtains often contains the residue of extractant, influences its purity, also influences its application.Supercritical fluid extraction is emerging chemical separation technology during the last ten years recently, the fluid that is in critical state has unique solvent advantage to solute: it not only has high solvability to solute, and just can easily change dissolubility to solute by changing temperature or pressure.People find after deliberation, CO
2Critical point low, reach easily, simultaneously, supercritical CO
2Fluid has that viscosity is low, dielectric constant is high, diffusion coefficient is big, solute is had very high characteristics such as dissolubility.In recent years, supercritical CO
2The research of abstraction technique constantly develops.Yet, up to now as yet not relevant for the open report that this technology is used to extract Oleum Zingiberis corallini; In the practice, supercritical CO yet of no use
2The method of extracting Oleum Zingiberis corallini is come out.
The object of the present invention is to provide and use supercritical CO
2The method of Extraction oil from Rhizoma Zingiberis corallini.
For reaching this goal of the invention, the inventor is through repeatedly research and practice, and the method that provides comprises: (1) earlier with Rhizoma Zingiberis corallini by dry, be crushed to certain particle size; (2) with Rhizoma Zingiberis corallini particle supercritical CO
2In extractor, extract; (3) then in knockout drum, carry out decompression separation.
The drying of Rhizoma Zingiberis corallini can also can be dried with the not too high hot-air seasoning of temperature, is crushed to particle diameter less than 8mm with pulverizer afterwards.
Supercritical CO
2Extraction equipment comprise CO
2Be machined to the equipment such as refrigerator, dosing pump, preheater and electrical control cubicles of supercriticality, also comprise and use supercritical CO
2Extractor, knockout drum to natural materials extracts in addition, also have post-decompression CO
2The pipe-line system that reclaims.Use supercritical CO
2When extracting Rhizoma Zingiberis corallini quintessence oil, the pressure limit of extractor inner control is 7MPa～32MPa, and temperature range is 25～65 ℃.The pressure limit of knockout drum inner control is 3MPa～6MPa, and temperature range is 0～55 ℃.
Each takes turns extraction, separation needs 1～3 hour.
Use supercritical CO
2The Oleum Zingiberis corallini that extracts is without any organic solvent residue, and the oil product that extracts can not damage human body when using; Extraction temperature is lower than traditional chemical solvent method and vapour method, can avoid destroying the structure of terpenoid effective ingredient in the Oleum Zingiberis corallini like this, has intactly kept the activity of medicine; The extraction rate of this method is fast, extraction ratio is high, and traditional method can only extract 40%～60% of Rhizoma Zingiberis corallini active ingredient, and extraction time needs 6～1 2 hours; And this method only needs 1～3 hour, just can extract more than 90% of Rhizoma Zingiberis corallini active ingredient.In addition, this method does not have " three wastes " discharging substantially, and environmentally safe is a kind of chemical industry technology of cleaning.
Accompanying drawing is for using supercritical CO
2The process flow diagram of extraction Oleum Zingiberis corallini, wherein, 1 is CO
2Gas cylinder, 2 is refrigerator, 3 is CO
2Storage tank, 4 is pump, and 5 is preheater, and 6 is extractor, and 7 is effusion meter, 8 is knockout drum; P, T are respectively Pressure gauge and thermometer.
Embodiment: take by weighing the pre-dry Rhizoma Zingiberis corallini Rhizoma Zingiberis of 10kg, to granularity 1mm, the extractor of packing into (6) is closed jar with crusher in crushing, feeds the supercritical CO that comes through refrigerator (2), pump (4) from gas cylinder (1)
2, under 10MPa, 32 ℃, extract; Extract enters knockout drum (8), separates under 3MPa, 25 ℃.Extracted under these conditions 2 hours, and obtained light yellow oil 608g.Extraction ratio is 6.08%.The CO that separates from knockout drum (8)
2Get back to refrigerator (2).Extract to finish, termination of pumping (4), bleed off CO
2, open extractor (6) and take out residue, carry out second wheel operation.
Claims (3)
1 uses supercritical CO
2Extract the method for Oleum Zingiberis corallini, its feature comprises:
(1) earlier with Rhizoma Zingiberis corallini by dry, be crushed to certain particle size;
(2) with Rhizoma Zingiberis corallini particle supercritical CO
2Extract in extractor, the pressure limit of extractor inner control is 7MPa～32MPa, and temperature range is 25～65 ℃.
(3) then carry out decompression separation in knockout drum, the pressure limit of knockout drum inner control is 3MPa～6MPa, and temperature range is 0～55 ℃.
2 in accordance with the method for claim 1, it is characterized in that the drying of Rhizoma Zingiberis corallini can also can be dried with the not too high hot-air seasoning of temperature, is crushed to particle diameter less than 8mm with pulverizer afterwards.
3 in accordance with the method for claim 1, it is characterized in that each takes turns extraction, separated needs 1～3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95108792 CN1144102A (en) | 1995-08-30 | 1995-08-30 | Process for extracting zingiber oil by using supercritical CO2 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95108792 CN1144102A (en) | 1995-08-30 | 1995-08-30 | Process for extracting zingiber oil by using supercritical CO2 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1144102A true CN1144102A (en) | 1997-03-05 |
Family
ID=5076893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95108792 Pending CN1144102A (en) | 1995-08-30 | 1995-08-30 | Process for extracting zingiber oil by using supercritical CO2 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144102A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098859C (en) * | 1999-08-20 | 2003-01-15 | 广州市轻工研究所 | Process for supercritical carbon dioxide extracting and separating effective components of ginger |
| CN1115398C (en) * | 2000-11-13 | 2003-07-23 | 四川英格尔生物工程股份有限公司 | Supercritical Co2 process for extracting and separating Chinese gall oil |
| FR2863172A1 (en) * | 2003-12-05 | 2005-06-10 | Biocoral Inc | Extracting organic substances from coral for making bone substitutes comprises treating the coral with a fluid at a defined temperature |
| CN101849588A (en) * | 2010-06-04 | 2010-10-06 | 山东三星玉米产业科技有限公司 | Ginger-flavored corn oil and preparation method thereof |
| CN113080249A (en) * | 2021-04-27 | 2021-07-09 | 贵州理工学院 | Application method of Zingiber corallinum Hance essential oil in preparing edible spray for prolonging shelf life of vegetables and fruits |
-
1995
- 1995-08-30 CN CN 95108792 patent/CN1144102A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098859C (en) * | 1999-08-20 | 2003-01-15 | 广州市轻工研究所 | Process for supercritical carbon dioxide extracting and separating effective components of ginger |
| CN1115398C (en) * | 2000-11-13 | 2003-07-23 | 四川英格尔生物工程股份有限公司 | Supercritical Co2 process for extracting and separating Chinese gall oil |
| FR2863172A1 (en) * | 2003-12-05 | 2005-06-10 | Biocoral Inc | Extracting organic substances from coral for making bone substitutes comprises treating the coral with a fluid at a defined temperature |
| WO2005055885A1 (en) * | 2003-12-05 | 2005-06-23 | Bio Holdings International Limited | Coral purification method and coral thus obtained |
| US7608283B2 (en) | 2003-12-05 | 2009-10-27 | Biocoral Inc. | Coral purification method and coral thus obtained |
| CN101849588A (en) * | 2010-06-04 | 2010-10-06 | 山东三星玉米产业科技有限公司 | Ginger-flavored corn oil and preparation method thereof |
| CN101849588B (en) * | 2010-06-04 | 2012-04-25 | 山东三星玉米产业科技有限公司 | Ginger-flavored corn oil and preparation method thereof |
| CN113080249A (en) * | 2021-04-27 | 2021-07-09 | 贵州理工学院 | Application method of Zingiber corallinum Hance essential oil in preparing edible spray for prolonging shelf life of vegetables and fruits |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |