CN1414078A - Super critical corbon dioxide extraction vegetable seed oil and its product - Google Patents
Super critical corbon dioxide extraction vegetable seed oil and its product Download PDFInfo
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- CN1414078A CN1414078A CN 02143849 CN02143849A CN1414078A CN 1414078 A CN1414078 A CN 1414078A CN 02143849 CN02143849 CN 02143849 CN 02143849 A CN02143849 A CN 02143849A CN 1414078 A CN1414078 A CN 1414078A
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Abstract
A process for extracting oil from plant seeds features that the supercritical CO2 fluid is used to extract the oil containing conjugated unsaturated fatty acid from the seeds of pumpkin, summer squash and pomegranate at low temp lower than 50 deg.C and 40 MPa. Its advantages are no damage to conjugated unsaturated fatty acid, high output rate and no toxic by-effect.
Description
Technical field
The present invention relates to a kind of extracting method of Vegetable oil lipoprotein, especially relate to a kind of method and this grease that contains the conjugated polyunsaturated fatty acid lipid that from Semen Cucurbitae, pepo, Semen Granati, extract with supercritical co.
Background technology
Conjugated polyunsaturated fatty acid has many special nourishing functions to the human physiological activity, such as anticancer change, promotes growth, reducing blood-fat, the accumulation of minimizing fat etc.But the unsaturated fatty acids acid lipid is oxidized easily rotten, and especially under heating condition, this point is more outstanding for the conjugated polyunsaturated fatty acid lipid.The natural product that is rich in the conjugated polyunsaturated fatty acid lipid has multiple, resembles in the endosperm of seed of pumpkin, summer squash, pomegranate and just is rich in the conjugated polyunsaturated fatty acid lipid.From plant seed, extract greasy method milling process, organic solvent extractionprocess and supercritical carbon dioxide extraction method etc. are arranged.Milling process, even cold-press wherein, in extruding kind of subprocess, seed is accepted will heat up inevitably after the huge mechanical work, thereby makes the conjugated polyunsaturated fatty acid oxidase rotten, and the conjugated polyunsaturated fatty acid content in the milling process grease is reduced.Residual inevitably a small amount of organic solvent makes product be subjected to Organic pollutants in the grease of organic solvent method.So these two kinds of methods all are not suitable for extracts the grease of using for healthcare products from the seed of pumpkin, summer squash or pomegranate.
Supercritical carbon dioxide extraction method can extract grease under relatively low temperature, make unsaturated fatty acids wherein exempt from deterioration by oxidation, simultaneously its product is polluted.Though extract greasy method with supercritical carbon dioxide extraction method from plant seed report being arranged, is not to extract grease from the seed of pumpkin, summer squash and pomegranate, and particularly their target is not to extract to contain the conjugated polyunsaturated fatty acid lipid.
Summary of the invention
One object of the present invention is to provide a kind of product that can prevent rotten, can make product not contaminated again, finally can be effectively from the seed of pumpkin, summer squash and pomegranate, the production method of the supercritical carbon dioxide extraction oil of plant that the grease that wherein contains conjugated polyunsaturated fatty acid is extracted.
Another object of the present invention is to provide a kind of employing supercritical carbon dioxide extraction oil of plant, wherein contains the product of conjugated polyunsaturated fatty acid lipid.
Technical scheme of the present invention: its step includes:
Plant seed is crushed to 50～90 orders (1), earlier, remove the shell, skin of impurity and seed as much as possible after, the endosperm of left seed or and the seed skin, put the extractor of supercritical carbon dioxide extraction system again into, form packing layer;
(2), the supercritical state of carbonic acid gas is meant that temperature is 30～50 ℃, pressure is 15～45Mpa; Supercritical co enters extractor from the bottom under pressure-driven, see through packing layer and make grease in the seed endosperm, dissolves in supercritical co; Flow out extractor then from the top together, enter the separating tank that temperature is higher, pressure is lower, the temperature of wherein said separating tank is 35～80 ℃, and pressure is 10～32Mpa;
(3), in separating tank, the grease that dissolves in carbonic acid gas is separated, and lodges in the separating tank bottom, regularly discharges the oil and fat product that becomes under normal temperature, the normal pressure; Isolate greasy carbonic acid gas, be collapsed into supercritical state again from high-pressure pump again, enter extractor again.Carbonic acid gas forms and circulates, and loss is few.
The described plant seed of aforesaid method can be Semen Cucurbitae or pepo or Semen Granati.
Adopting the grease obtained product of supercritical carbon dioxide extraction oil of plant is the grease that contains conjugated polyunsaturated fatty acid, its characteristic is 25 ℃ of specific refractory power 1.477-1.520, acid value is less than 4.0mgKOH/g oil, fusing point is 12-15 ℃, saponification value 189-225mgKOH/g oil, unsaponifiables is less than 1.7%, iodine number 115-204mgI
2/ g oil, saturated fatty acid is less than 40%, unsaturated fatty acids 55%-85%, conjugated polyunsaturated fatty acid 3%-23%.Described plant seed can be Semen Cucurbitae or summer squash or Semen Granati.
Advantage of the present invention is: adopt supercritical carbon dioxide extraction, can prevent that product is rotten, can make product not contaminated again, its process is to carry out being no more than under 50 ℃ the low temperature, so reduce the deterioration by oxidation of the conjugated polyunsaturated fatty acid lipid in the grease effectively; Extraction process carries out under up to the high pressure of 40Mpa again, makes carbonic acid gas infiltrate the cell interior of plant seed endosperm deeply, so oil yield is higher; Simultaneously, carbonic acid gas is to the digestion toxicological harmless, and it discharges again under normal temperature, normal pressure fully, and oil and fat product is not stayed any toxic side effect.
Embodiment
Embodiment 1: after Semen Granati was dried, water ratio was 15%.Through broken, sieve, rescreen and get 50～90 purpose Semen Granati endosperm and seed incrustation.This example is not separated incrustation.Its two extractor that are loaded into the supercritical carbon dioxide extraction system together, packing factor is 90% then.Temperature is 32 ℃, and pressure is the supercritical co of 35Mpa, enters extractor from the bottom.After 2 hours extraction, be that 45 ℃, pressure are in the separating tank of 15Mpa granada seed oil to be separated in the open plastics pot in temperature.Resulting granada seed oil presents extremely shallow reddish yellow, and 25 ℃ of specific refractory poweres are 1.518, and fusing point is 13 ℃, acid value 1.1mgKOH/g oil, iodine number 170mgI
2/ g oil, unsaponifiables 0.7%, saponification value 189.9mgKOH/g oil, saturated fatty acid are 39%, and unsaturated fatty acids is 55%, and wherein conjugated polyunsaturated fatty acid is 15%.
Embodiment 2: after Semen Cucurbitae was dried, water ratio was 13%, through broken, sieve, rescreen and get 50～90 purpose Semen Cucurbitae endosperm and seed incrustation.Incrustation is separated, be loaded into the extractor of supercritical carbon dioxide extraction system then, packing factor is 90%.Temperature is 35 ℃, and pressure is the supercritical co of 35Mpa, enters extractor from the bottom.After 2 hours extraction, be that 44 ℃, pressure are in the separating tank of 15Mpa Semen Cucurbitae oil to be separated in the open plastics pot in temperature.Resulting Semen Cucurbitae oil presents extremely shallow yellow, and 25 ℃ of specific refractory poweres are 1.503, and fusing point is 15 ℃, acid value 0.6mgKOH/g oil, iodine number 168mgI
2/ g oil, unsaponifiables 0.9%, saponification value 215.2mgKOH/g oil, saturated fatty acid are 35%, and unsaturated fatty acids is 60%, and wherein conjugated polyunsaturated fatty acid is 14%.
Embodiment 3: after pepo dried, water ratio was 15%, through broken, sieve, rescreen and get 50～90 purpose pepo endosperm and seed incrustation.Incrustation is separated, be loaded into the extractor of supercritical carbon dioxide extraction system then, packing factor is 90%.Temperature is 32 ℃, and pressure is the supercritical co of 33Mpa, enters extractor from the bottom.After 2 hours extraction, be that 42 ℃, pressure are separating of oil in open plastics pot pepo in the separating tank of 15Mpa in temperature.Resulting pepo oil presents extremely shallow yellow, and 25 ℃ of specific refractory poweres are 1.483, and fusing point is 12 ℃, acid value 0.8mgKOH/g oil, iodine number 181mgI
2/ g oil, unsaponifiables 1.6%, saponification value 220.0mgKOH/g oil, saturated fatty acid are 25%, and unsaturated fatty acids is 66%, and wherein conjugated polyunsaturated fatty acid is 20%.
Claims (6)
1, a kind of supercritical carbon dioxide extraction oil of plant is characterized in that, its step includes:
Plant seed is crushed to 50～90 orders (1), earlier, remove the shell, skin of impurity and seed as much as possible after, the endosperm of left seed or and the seed skin, put the extractor of supercritical carbon dioxide extraction system again into, form packing layer;
(2), the supercritical state of carbonic acid gas is meant that temperature is 30～50 ℃, pressure is 15～45Mpa; Supercritical co enters extractor from the bottom under pressure-driven, see through packing layer and make grease in the seed endosperm, dissolves in supercritical co; Flow out extractor then from the top together, enter the separating tank that temperature is higher, pressure is lower, the temperature of wherein said separating tank is 35～80 ℃, and pressure is 10～32Mpa;
(3), in separating tank, the grease that dissolves in carbonic acid gas is separated, and lodges in the separating tank bottom, regularly discharges the oil and fat product that becomes under normal temperature, the normal pressure.
2, a kind of supercritical carbon dioxide extraction oil of plant according to claim 1 is characterized in that, isolates greasy described carbonic acid gas, is collapsed into supercritical state again from high-pressure pump again, enters extractor again.
3, the grease obtained product of a kind of employing supercritical carbon dioxide extraction oil of plant is characterized in that described oil and fat product is the grease that contains conjugated polyunsaturated fatty acid.
4, the grease obtained product of a kind of employing supercritical carbon dioxide extraction oil of plant according to claim 3, it is characterized in that, the described grease that contains conjugated polyunsaturated fatty acid, its characteristic is 25 ℃ of refractive index 1.477-1.520, acid value is less than 4.0mgKOH/g oil, and fusing point is 12-15 ℃, saponification value 189-225mgKOH/g oil, unsaponifiables is less than 1.7%, iodine number 115-204mgI
2/ g oil, saturated fatty acid is less than 40%, unsaturated fatty acids 55%-85%, conjugated polyunsaturated fatty acid 3%-23%.
5, a kind of supercritical carbon dioxide extraction oil of plant according to claim 1 is characterized in that, described plant seed can be Semen Cucurbitae or pepo or Semen Granati.
6, the grease obtained product of a kind of employing supercritical carbon dioxide extraction oil of plant according to claim 3 is characterized in that described plant seed can be Semen Cucurbitae or summer squash or Semen Granati.
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| CN 02143849 CN1414078A (en) | 2002-09-30 | 2002-09-30 | Super critical corbon dioxide extraction vegetable seed oil and its product |
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| CN 02143849 CN1414078A (en) | 2002-09-30 | 2002-09-30 | Super critical corbon dioxide extraction vegetable seed oil and its product |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294242C (en) * | 2005-06-17 | 2007-01-10 | 长沙桑霖生物科技有限公司 | Method for extracting passiflora seed oil from passiflora seeds |
| CN1311063C (en) * | 2005-06-17 | 2007-04-18 | 长沙桑霖生物科技有限公司 | Method for extracting spine grape seed oil from spine grape seeds |
| CN100344601C (en) * | 2005-09-08 | 2007-10-24 | 中国科学院山西煤炭化学研究所 | High purity punicic acid production method |
| CN100453629C (en) * | 2006-08-24 | 2009-01-21 | 中国科学院山西煤炭化学研究所 | Method of extracting safflower oil using super-critical carbon dioxide |
| CN101019909B (en) * | 2007-03-20 | 2010-10-06 | 中国科学院山西煤炭化学研究所 | Supercritical safflower extracting process |
| CN101194713B (en) * | 2007-12-18 | 2011-05-18 | 华南农业大学 | Method for processing edible camellia oil |
| CN102716174A (en) * | 2012-06-18 | 2012-10-10 | 中国农业大学 | Novel drug application of cantaloupe seed oil |
| CN104194926A (en) * | 2014-07-31 | 2014-12-10 | 濮阳市天行健生物科技有限公司 | Method for extracting pumpkin seed oil with supercritical CO2 |
| CN104629895A (en) * | 2015-02-09 | 2015-05-20 | 吴海军 | Cucumis metuliferus fruit seed oil and preparation method thereof |
| CN104629890A (en) * | 2015-01-21 | 2015-05-20 | 东北农业大学 | Method for preparing pumpkin seed oil through enzymolysis cold squeezing method |
| CN105695088A (en) * | 2016-03-05 | 2016-06-22 | 榆林学院 | Method for preparing black soybean tar on basis of supercritical CO2 extraction |
| CN106753752A (en) * | 2016-12-13 | 2017-05-31 | 青岛嘉瑞生物技术有限公司 | A kind of health-care salicorne oil beneficial to hypotensive |
| CN111154547A (en) * | 2020-01-10 | 2020-05-15 | 中国科学院西北高原生物研究所 | Supercritical fluid extraction method of Chinese iris seed oil and application thereof |
-
2002
- 2002-09-30 CN CN 02143849 patent/CN1414078A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294242C (en) * | 2005-06-17 | 2007-01-10 | 长沙桑霖生物科技有限公司 | Method for extracting passiflora seed oil from passiflora seeds |
| CN1311063C (en) * | 2005-06-17 | 2007-04-18 | 长沙桑霖生物科技有限公司 | Method for extracting spine grape seed oil from spine grape seeds |
| CN100344601C (en) * | 2005-09-08 | 2007-10-24 | 中国科学院山西煤炭化学研究所 | High purity punicic acid production method |
| CN100453629C (en) * | 2006-08-24 | 2009-01-21 | 中国科学院山西煤炭化学研究所 | Method of extracting safflower oil using super-critical carbon dioxide |
| CN101019909B (en) * | 2007-03-20 | 2010-10-06 | 中国科学院山西煤炭化学研究所 | Supercritical safflower extracting process |
| CN101194713B (en) * | 2007-12-18 | 2011-05-18 | 华南农业大学 | Method for processing edible camellia oil |
| CN102716174A (en) * | 2012-06-18 | 2012-10-10 | 中国农业大学 | Novel drug application of cantaloupe seed oil |
| CN102716174B (en) * | 2012-06-18 | 2014-12-31 | 中国农业大学 | Novel drug application of cantaloupe seed oil |
| CN104194926A (en) * | 2014-07-31 | 2014-12-10 | 濮阳市天行健生物科技有限公司 | Method for extracting pumpkin seed oil with supercritical CO2 |
| CN104629890A (en) * | 2015-01-21 | 2015-05-20 | 东北农业大学 | Method for preparing pumpkin seed oil through enzymolysis cold squeezing method |
| CN104629895A (en) * | 2015-02-09 | 2015-05-20 | 吴海军 | Cucumis metuliferus fruit seed oil and preparation method thereof |
| CN105695088A (en) * | 2016-03-05 | 2016-06-22 | 榆林学院 | Method for preparing black soybean tar on basis of supercritical CO2 extraction |
| CN106753752A (en) * | 2016-12-13 | 2017-05-31 | 青岛嘉瑞生物技术有限公司 | A kind of health-care salicorne oil beneficial to hypotensive |
| CN111154547A (en) * | 2020-01-10 | 2020-05-15 | 中国科学院西北高原生物研究所 | Supercritical fluid extraction method of Chinese iris seed oil and application thereof |
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