CN103666752A - Red pine kernel oil extraction and purification technology - Google Patents
Red pine kernel oil extraction and purification technology Download PDFInfo
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- CN103666752A CN103666752A CN201310628889.3A CN201310628889A CN103666752A CN 103666752 A CN103666752 A CN 103666752A CN 201310628889 A CN201310628889 A CN 201310628889A CN 103666752 A CN103666752 A CN 103666752A
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Abstract
The invention relates to a red pine kernel oil extraction method, in particular to a red pine kernel oil extraction and purification technology. Red pine kernels obtained by shelling red pine seeds are made into cold-pressed red pine kernel oil and oil meal by a hydraulic cold pressing method in the first procedure; then red pine kernel oil is extracted from the red pine kernel oil meal by a supercritical carbon dioxide extraction technology in the second procedure; red pine kernel oil obtained in the two procedures are mixed, and then further dehydrated, deacidified and purified by a secondary molecular distillation technology in the third procedure to obtain final red pine kernel oil. According to the red pine kernel oil extraction and purification technology, hydraulic cold pressing, supercritical extraction and molecular distillation technologies are used in combination, whole-course physical processing is implemented on red pine kernels, the oil yield is high, the amount of residual oil in the oil meal is low, hot damage to proteins is low, the utilization efficiency of raw materials is high, the risk of residual solvent is avoided, and the oil has high quality and rich functional components.
Description
Technical field
The invention belongs to edible oil processing technique field, be specifically related to a kind of extraction and purification method of Korean pine benevolence oil.
Background technology
Korean pine benevolence is that its oil-contg generally can reach 65%-70% by the kind benevolence of gained after the peeling of plant Korean pine mature seed, and wherein unsaturated fatty acids has accounted for more than 90%.Research shows, Korean pine benevolence oil is because its special lipid forms, have the blood pressure and blood lipoid of adjusting, anticancer, improve the effect such as remember, delay senility, be a kind of to the oily starting material of the very useful natural edible of HUMAN HEALTH.The traditional extraction process of Korean pine benevolence oil mainly includes machine solvent method and screw press method.In the grease that wherein organic solvent method extracts, may contain HUMAN HEALTH is had to dysgenic organic solvent; And conventional screw press method not only oil yield is low, in oil meal, oil residues is more, oil expression excess Temperature also cause the pyrolytic damage of Korean pine benevolence protein serious, be unfavorable for the further utilization to Korean pine benevolence albumen.In recent years supercritical carbon dioxide extraction method because of the application of the advantages such as its percentage extraction is high, nontoxicity pollution on oil extracts more and more.Molecular distillation technique (claiming again short-path distillation technology) not only can keep original local flavor of food, and have that material heated time is short, pure safe and reliable, the separation degree of product high more, the extraction and the purifying that are specially adapted to heat-sensitive material are widely used in field of food.
Summary of the invention
In the present invention for the deficiencies in the prior art, a kind of extraction and purification method of Korean pine benevolence oil is proposed, by hydraulic cold, supercritical extraction and molecular distillation technique coupling, Korean pine benevolence is carried out to omnidistance physics mode processing, invented that a kind of grease yield is high, Residual oil is few in oil meal, little to the pyrolytic damage of pinenut protein, prepared using efficiency is high, no solvent residue risk, oil quality is good, functional component is abundant Korean pine benevolence oil are extracted and purification technique.
The technical solution adopted in the present invention is as follows:
Utilize and Korean pine seed to be separated into shell, seed benevolence, scrap except shell machine, by Korean pine benevolence at-18 ℃ freezing or at 4 ℃ stored refrigerated standby.Before processing, material is at room temperature risen again to being suitable for cold press condition, utilize three cold press Korean pine benevolence of hydraulic cold crusher, the raw material of second and third cold press is the oil meal obtaining after a front cold press, and the cold press Korean pine benevolence oil of acquisition is three accumulation oil after cold press.Cold press condition is: cold press amount is 6kg, and cold press temperature is 12 ℃, and cold press pressure is 55MPa.
Oil meal after three cold press is through supercritical carbon dioxide extraction method extraction, and condition is: extracting pressure 35MPa, 50 ℃ of extraction temperature, extraction time 90min; Separated Fu I pressure 12MPa, temperature 45 C; Separated Fu II pressure 6MPa, 30 ℃ of temperature; Carbon dioxide flow 30kg/h, obtains supercritical carbon dioxide extraction Korean pine benevolence oil;
Mix cold press Korean pine benevolence oil and supercritical carbon dioxide extraction Korean pine benevolence oil, adopt secondary molecular distillation technique: feeding rate 90mL/min, 55 ℃ of feeding temperatures, 120 ℃ of 1 grade of distillation temperatures, 160 ℃ of 2 grades of distillation temperatures, knifing rotating speed 300r/min, working pressure 1.5Pa.1 grade of molecular distillation is sloughed moisture and part volatile constituent, and 2 grades of molecular distillations are sloughed free fatty acids, thereby further purifies, and obtains final Korean pine benevolence oil.
The present invention combines cold-press and supercritical carbon dioxide extraction method, processing parameter is adjusted simultaneously, reduced the Residual oil content of last Korean pine benevolence oil meal, improved raw material oil yield, very little to the protein influence in Korean pine benevolence oil meal, also avoid repeatedly extraction, reduced the cost extracting.And after the mixing oil of acquisition is further purified with secondary molecular distillation technique dehydration depickling, the loss of the Korean pine benevolence of acquisition oil nutritive ingredient is less, color, mouthfeel are better, and quality and functional component are higher.
Embodiment
Below by specific embodiment, the present invention is described in detail.Following embodiment, only gives an example for representative of the present invention, should not be construed as limited range of the invention process.Every simple replacement or variation to production craft step of the present invention and condition; as the Korean pine benevolence oil after the Korean pine benevolence oil after cold press or supercritical carbon dioxide extraction is directly carried out, secondary molecular distillation technique is further purified and other the change that any the present invention of not deviating from did; all should be the substitute mode of equivalence of the present invention, all belong to protection scope of the present invention.
Embodiment 1
Take the Korean pine benevolence of 6000g freezing preservation at-18 ℃, after suitably rising again under room temperature, through three cold press of hydraulic cold crusher, then the oil meal after cold press is carried out to supercritical carbon dioxide extraction.Merge cold press oily with the Korean pine benevolence that extraction obtains, then through secondary molecular distillation technique dehydration depickling.Wherein,
Cold pressing process: cold press temperature is 12 ℃, cold press pressure is 55MPa.
Supercritical carbon dioxide extraction process: extracting pressure 35MPa, 50 ℃ of extraction temperature, extraction time 90min, separated Fu I pressure 12MPa, separated Fu I temperature 45 C, separated Fu II pressure 6MPa, 30 ℃ of separated Fu II temperature, carbon dioxide flow 30kg/h.
Molecular distillation process: feeding rate 90mL/min, 55 ℃ of feeding temperatures, 120 ℃ of 1 grade of distillation temperatures, 160 ℃ of 2 grades of distillation temperatures, knifing rotating speed 300r/min, working pressure 1.5Pa.
Embodiment 2
Take 4000g cryopreserved Korean pine benevolence at 4 ℃, after suitably rising again under room temperature, through three cold press of hydraulic cold crusher, then the oil meal after cold press is carried out to supercritical carbon dioxide extraction.Merge cold press oily with the Korean pine benevolence that extraction obtains, then through secondary molecular distillation technique dehydration depickling.Cold press condition is that cold press temperature is 10 ℃, and cold press pressure is 60MPa.Supercritical carbon dioxide extraction is consistent with embodiment 1 with molecular distillation condition.
Embodiment 3
Take 4000g cryopreserved Korean pine benevolence at 4 ℃, after suitably rising again under room temperature through three cold press of hydraulic cold crusher, then the oil meal after cold press carries out supercritical carbon dioxide extraction, merges cold press oily with the Korean pine benevolence that extraction obtains, then through secondary molecular distillation technique dehydration depickling.During supercritical carbon dioxide extraction, extracting pressure 30MPa, 45 ℃ of extraction temperature, extraction time 90min, separated Fu I pressure 14MPa, separated Fu I temperature 50 C, separated Fu II pressure 5MPa, 25 ℃ of separated Fu II temperature, carbon dioxide flow 35kg/h.The condition of cold press and molecular distillation is consistent with embodiment 1.
Embodiment 4
Take 5000g cryopreserved Korean pine benevolence at 4 ℃, after suitably rising again under room temperature through three cold press of hydraulic cold crusher, then the oil meal after cold press carries out supercritical carbon dioxide extraction, merges cold press oily with the Korean pine benevolence that extraction obtains, then through secondary molecular distillation technique dehydration depickling.During molecular distillation, feeding rate 80mL/min, 60 ℃ of feeding temperatures, 125 ℃ of 1 grade of distillation temperatures, 155 ℃ of 2 grades of distillation temperatures, knifing rotating speed 250r/min, working pressure 2.0Pa.The condition of cold press and supercritical carbon dioxide extraction is consistent with embodiment 1.
Claims (5)
1. the extraction of Korean pine benevolence oil and a purification process, its step is as follows:
(1) the Korean pine benevolence that Korean pine seed is removed after shell obtains cold press Korean pine benevolence oil and oil meal through three hydraulic colds;
(2) cold press gained oil meal obtains extraction Korean pine benevolence oil through supercritical carbon dioxide extraction;
(3) the extraction Korean pine benevolence of the cold press Korean pine benevolence of combining step (1) oil and step (2) oil, adopts the depickling of further dewatering of secondary molecular distillation technique to purify, and obtains final Korean pine benevolence oily.
2. extraction and the purification process of a kind of Korean pine benevolence oil as claimed in claim 1, is characterized in that, cryopreservation under be positioned over-26-4 ℃ condition before the Korean pine benevolence processing in step (1).
3. extraction and the purification process of a kind of Korean pine benevolence oil as claimed in claim 1, is characterized in that, the cold press condition in step (1) is: cold press amount is 1-8kg Korean pine benevolence, and cold press temperature is-5-25 ℃ that cold press pressure is 45-60MPa.
4. extraction and the purification process of a kind of Korean pine benevolence oil as claimed in claim 1, it is characterized in that, extraction parameters in step (2) is extracting pressure 20-40MPa, extraction temperature 40-60 ℃, extraction time 60-150min, separated Fu I pressure 8-15MPa, separated Fu I temperature 30-50 ℃, separated Fu II pressure 5-8MPa, separated Fu II temperature 25-30 ℃, carbon dioxide flow 20-40kg/h.
5. extraction and the purification process of a kind of Korean pine benevolence oil as claimed in claim 1, it is characterized in that, in step (3), the design parameter of molecular distillation technique is feeding rate 70-100mL/min, feeding temperature 40-70 ℃, 1 grade of distillation temperature 105-140 ℃, 2 grades of distillation temperature 150-190 ℃, knifing rotating speed 200-400r/min, working pressure 1.0-4.0Pa.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937593A (en) * | 2014-04-29 | 2014-07-23 | 周广胜 | Preparation method of natural pine nut edible oil |
| CN105925363A (en) * | 2016-04-17 | 2016-09-07 | 吉林派诺生物技术股份有限公司 | Extracting method of pine seed oil with low acid value and pinolenic acid |
| CN106433953A (en) * | 2016-11-10 | 2017-02-22 | 谭挺 | Preparation process of pinus yunnanensis pine nut oil |
| CN108541772A (en) * | 2018-03-15 | 2018-09-18 | 东北林业大学 | A kind of preparation process of high-content korean pine seed oil powdered oil |
| CN108559617A (en) * | 2018-01-29 | 2018-09-21 | 雷波县小平特色农产品开发有限公司 | A kind of production method of walnut oil |
| CN108641812A (en) * | 2018-06-05 | 2018-10-12 | 阿拉山口金牧生物科技有限公司 | A kind of processing method of certain herbaceous plants with big flowers benevolence oil and its by-product |
| CN117603758A (en) * | 2023-11-23 | 2024-02-27 | 哈尔滨工业大学 | Cold pressing-supercritical combined extraction elytrigia repens kernel oil and preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937593A (en) * | 2014-04-29 | 2014-07-23 | 周广胜 | Preparation method of natural pine nut edible oil |
| CN105925363A (en) * | 2016-04-17 | 2016-09-07 | 吉林派诺生物技术股份有限公司 | Extracting method of pine seed oil with low acid value and pinolenic acid |
| CN106433953A (en) * | 2016-11-10 | 2017-02-22 | 谭挺 | Preparation process of pinus yunnanensis pine nut oil |
| CN108559617A (en) * | 2018-01-29 | 2018-09-21 | 雷波县小平特色农产品开发有限公司 | A kind of production method of walnut oil |
| CN108541772A (en) * | 2018-03-15 | 2018-09-18 | 东北林业大学 | A kind of preparation process of high-content korean pine seed oil powdered oil |
| CN108641812A (en) * | 2018-06-05 | 2018-10-12 | 阿拉山口金牧生物科技有限公司 | A kind of processing method of certain herbaceous plants with big flowers benevolence oil and its by-product |
| CN117603758A (en) * | 2023-11-23 | 2024-02-27 | 哈尔滨工业大学 | Cold pressing-supercritical combined extraction elytrigia repens kernel oil and preparation method and application thereof |
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Application publication date: 20140326 |