CN101659900A - Method of using supercritical CO2 for extracting seed amaranth oil - Google Patents
Method of using supercritical CO2 for extracting seed amaranth oil Download PDFInfo
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- CN101659900A CN101659900A CN200910272129A CN200910272129A CN101659900A CN 101659900 A CN101659900 A CN 101659900A CN 200910272129 A CN200910272129 A CN 200910272129A CN 200910272129 A CN200910272129 A CN 200910272129A CN 101659900 A CN101659900 A CN 101659900A
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- seed
- extracting
- amaranth
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- kettle
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Abstract
The invention relates to a method of using supercritical CO2 for extracting seed amaranth oil, which comprises that powdery seed amaranth is placed into an extracting kettle, CO2 is continuously introduced to the extracting kettle and simultaneously the temperature and the pressure in the extracting kettle are controlled; and after 100 to 250 minutes, 80 to 95 percent of seed amaranth oil weight is extracted and simultaneously dissolved in supercritical CO2 and enters the extracting kettle with CO2, and the finished amaranth oil is separated. In the entire extracting and separating process, the extracting kettle and a separating kettle are communicated, and the temperature and the pressure of the extracting kettle and the separating kettle are controlled from 30 to 40 DEG C and 30 to 40 MPa. The product prepared by the invention has high quality and economic value, no solvent pollution exists in the extracting process, the residual material can be processed and used, and the industrialproduction prospect is considerable.
Description
Technical field
The present invention relates to the edible oil field, particularly relate to a kind of extracting process seed amaranth oil.
Background technology
Amaranth seed powder has another name called prince's-feather, belongs to Amaranthaceae, Amaranthus annual herb plant, fatty acids 5.72-8.16% (dry weight) in the amaranth seed powder seed, and main component wherein is a unsaturated fatty acids, accounts for 70-80%, and cardiovascular and cerebrovascular disease are had certain prophylactic effect.In addition, contain the squalene of the 7-8% that has an appointment in the seed amaranth oil, have very high medical value.Squalene is the important as precursors of synthetic sterol, can suppress cholesterol synthase, has the effect of reducing cholesterol.
At present, along with the aging of population, China cardiovascular and cerebrovascular patient and hypercholesterolemia patient are more and more, and therefore, market outlook are very wide, and potentiality to be exploited will be very considerable.Supercritical liquid extraction technique is a kind of novel separation and extraction technology that development in recent years is got up, and its major advantage is the extraction efficiency height, the solvent-free pollution of product, and applying of it is a main direction studying the separating substances method from now on.
Summary of the invention
Technical problem to be solved by this invention is: a kind of supercritical CO that can obtain purity height and solvent-free pollution is provided
2The method of extracting seed amaranth oil.
The technical scheme that the present invention solves its technical problem employing is: the powdered amaranth seed powder is put into extraction kettle, continual then feeding CO earlier
2, control temperature and pressure in the extraction kettle simultaneously, promptly there is the seed amaranth oil of 80-95% weight to be extracted out after 100-250 minute, when being extracted out, seed amaranth oil is dissolved in supercritical CO
2, and with CO
2Enter separating still, promptly isolate the finished product seed amaranth oil; In whole extraction and sepn process, extraction kettle is in separating still and is communicated with, and all controlled temperature is that 30-40 ℃ and pressure are the 30-40MPa state.
Described supercritical CO
2Abstraction technique is meant the dissolving power of utilizing supercutical fluid and the relation of its density, promptly utilizes pressure and temperature to the influence of supercutical fluid dissolving power and the extracting and separating of carrying out.Under supercritical state, supercutical fluid is contacted with material to be separated, it is extracted the composition of polarity size, boiling point height and molecular weight size selectively successively.Certainly, the resulting extract of corresponding each pressure range can not be single, but the mixing element that can control condition obtains optimum proportion, method by decompression, intensification makes supercutical fluid become common gases then, being extracted material then separates out fully or substantially, separate the purpose of purifying thereby reach, so supercritical CO
2Extraction process is combined by extraction and sepn process.
The present invention compared with prior art has following main beneficial effect:
The present invention utilizes supercritical CO
2Abstraction technique can extract fine seed amaranth oil, this seed amaranth oil purity height, and solvent-free pollution from the amaranth seed powder seed.Owing to be under the cryogenic high pressure condition, to extract seed amaranth oil, therefore avoided the oxidation of seed amaranth oil, meet the requirement of present people to the natural nutrition health functional food.The composition of lipid acid sees Table 1 in the seed amaranth oil.
Not only quality product is higher for the resulting seed amaranth oil of the present invention, has higher economic value, but and also processing and utilization of the material after the extraction residue, the suitability for industrialized production prospect is considerable.
Embodiment
Supercritical CO provided by the invention
2The method of extracting seed amaranth oil, specifically: the powdered amaranth seed powder is put into extraction kettle, continual then feeding CO earlier
2, control temperature and pressure in the extraction kettle simultaneously, promptly there is the seed amaranth oil of 80-95% weight to be extracted out after 100-250 minute, when being extracted out, seed amaranth oil is dissolved in supercritical CO
2, and with CO
2Enter separating still, promptly isolate the finished product seed amaranth oil; In whole extraction and sepn process, extraction kettle is in separating still and is communicated with, and all controlled temperature is that 30-40 ℃ and pressure are the 30-40MPa state.
Described powdery amaranth seed powder is to adopt the powdery amaranth seed powder of 55-60 mesh sieve.
Feeding CO
2Process in, its processing parameter is: temperature is not less than 30 ℃, and pressure is not less than 7.5MPa.
The present invention is further illustrated below in conjunction with specific embodiment, but be not limited only to following embodiment.
Embodiment 1
Earlier the amaranth seed powder seed is pulverized, then extraction kettle is communicated with separating still, in extraction kettle, put into the amaranth seed powder powder of 55 mesh sieves, uninterruptedly feed 30 ℃, the CO of pressure 7.5MPa
2, and will extract temperature in the kettle and be controlled at 30 ℃, pressure 30MPa, promptly there is the seed amaranth oil of 82% left and right sides weight to be gone out after 250 minutes by collection.When being extracted out, seed amaranth oil is dissolved in supercritical CO
2And with CO
2Enter separating still, the temperature of separating still is controlled at 30 ℃, pressure 40MPa, can isolate the finished product seed amaranth oil.
Embodiment 2
Earlier the amaranth seed powder seed is pulverized, then extraction kettle is communicated with separating still, in extraction kettle, put into the amaranth seed powder powder of 60 mesh sieves, uninterruptedly feed 35 ℃, the CO of pressure 8.0MPa
2, and will extract temperature in the kettle and be controlled at 35 ℃, pressure 35MPa, promptly have after 150 minutes 80% and the seed amaranth oil of above weight gone out by collection.When being extracted out, seed amaranth oil is dissolved in supercritical CO
2And with CO
2Enter separating still, the temperature of separating still is controlled at 35 ℃, pressure 35MPa, can isolate the finished product seed amaranth oil.
Embodiment 3
Earlier the amaranth seed powder seed is pulverized, then extraction kettle is communicated with separating still, in extraction kettle, put into the amaranth seed powder powder of 58 mesh sieves, uninterruptedly feed 40 ℃, the CO of pressure 8.5MPa
2, and will extract temperature in the kettle and be controlled at 40 ℃, pressure 40MPa, promptly have after 100 minutes 85% and the seed amaranth oil of above weight gone out by collection.When being extracted out, seed amaranth oil is dissolved in supercritical CO
2And with CO
2Enter separating still, the temperature of separating still is controlled at 40 ℃, pressure 40MPa, can isolate the finished product seed amaranth oil.
Embodiment 4
Earlier the amaranth seed powder seed is pulverized, then extraction kettle is communicated with separating still, in extraction kettle, put into the amaranth seed powder powder of 56 mesh sieves, uninterruptedly feed 32 ℃, the CO of pressure 8.5MPa
2, and will extract temperature in the kettle and be controlled at 32 ℃, pressure 32MPa, promptly have after 200 minutes 85% and the seed amaranth oil of above weight gone out by collection.When being extracted out, seed amaranth oil is dissolved in supercritical CO
2And with CO
2Enter separating still, the temperature of separating still is controlled at 40 ℃, pressure 40MPa, can isolate the finished product seed amaranth oil.
Subordinate list
The composition of lipid acid in table 1. seed amaranth oil (gas chromatographic analysis result)
Claims (3)
1. supercritical CO
2The method of extracting seed amaranth oil is characterized in that this method is: the powdered amaranth seed powder is put into extraction kettle, continual then feeding CO earlier
2, control temperature and pressure in the extraction kettle simultaneously, promptly there is the seed amaranth oil of 80-95% weight to be extracted out after 100-250 minute, when being extracted out, seed amaranth oil is dissolved in supercritical CO
2, and with CO
2Enter separating still, promptly isolate the finished product seed amaranth oil; In whole extraction and sepn process, extraction kettle is in separating still and is communicated with, and all controlled temperature is that 30-40 ℃ and pressure are the 30-40MPa state.
2. supercritical CO according to claim 1
2The method of extracting seed amaranth oil is characterized in that: the powdery amaranth seed powder that adopted the 55-60 mesh sieve.
3. supercritical CO according to claim 1
2The method of extracting seed amaranth oil is characterized in that: feed CO being not less than under the pressure of 7.5MPa
2, this CO
2Temperature be not less than 30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272129A CN101659900A (en) | 2009-09-18 | 2009-09-18 | Method of using supercritical CO2 for extracting seed amaranth oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272129A CN101659900A (en) | 2009-09-18 | 2009-09-18 | Method of using supercritical CO2 for extracting seed amaranth oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101659900A true CN101659900A (en) | 2010-03-03 |
Family
ID=41788155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910272129A Pending CN101659900A (en) | 2009-09-18 | 2009-09-18 | Method of using supercritical CO2 for extracting seed amaranth oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101659900A (en) |
-
2009
- 2009-09-18 CN CN200910272129A patent/CN101659900A/en active Pending
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Open date: 20100303 |