CN1184805A - Method for preparing alpha-flax oil acid - Google Patents
Method for preparing alpha-flax oil acid Download PDFInfo
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- CN1184805A CN1184805A CN96116617A CN96116617A CN1184805A CN 1184805 A CN1184805 A CN 1184805A CN 96116617 A CN96116617 A CN 96116617A CN 96116617 A CN96116617 A CN 96116617A CN 1184805 A CN1184805 A CN 1184805A
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Abstract
The alpha-linolenic acid oil is prepd. by soaking perilla seed, pressing and settling. It is characterized by that 1% (by wt.) vitamin E is added to the upper clear liquid, then passes through ultrafiltration membrane; in the lower pressed oil, 10-15% (by wt.) olive oil is added, then further extracted, pressed, settled, 1.5 wt.% vitamin E is added to the upper clear liquor, after ultrafiltration, high quality perilla seed oil rich in alpha linolenic acid is obtd..
Description
The present invention relates to a kind of preparation method of unsaturated fatty acids, be specifically related to the preparation method of α-linolenic acid.
Have three big serial unsaturated fatty acidss in the food: oleic acid (omega-9), linolic acid (omega-6) and α-linolenic acid (omega-3) be, they can not be changed mutually during metabolism in vivo, and have special physiological properties.α-linolenic acid (omega-3) and meta-bolites thereof optionally mix some organ of warm-blooded animal, in the thanomin phosphatide and lipid sphyngomyelin as pallium, retina, testis and sperm, so α-linolenic acid (omega-3) has material impact to animal and human's body health, effectively the blood fat reducing level, weaken hematoblastic agglutination, the generation that helps to prevent and treat atherosclerosis and reduce ischemic cardiovascular and cerebral vascular disease, and show brain, sense organ and reproductive organ specific performance.For example by investigating, living in the arctic makes a living with hunting, based on fish and carnivorous Eskimos, although the fat quantity of being eaten (accounting for total heat about 40%), cholesterol (about 800 mg/day) and total heat (every day 3, more than 000 card), and coronary heart disease, cancer, the M ﹠ M of diseases such as diabetes but is significantly less than (having only about 1/10) other crowds, also be significantly less than and migrate other geographic Eskimos, once the Ace Ji Mo family in the Canada and the U.S. was investigated, although their grand parents, father and mother almost do not have myopic, but in their following generation (young about 20 years old), have 60%-88% that myopia has taken place unexpectedly, through a series of investigation and research, found answer finally: be that α-linolenic acid that the fish of the arctic is rich in has played keying action.α-linolenic acid receives the very big concern of medical circle at this point.
α-linolenic acid (omega-3) is except being present in salmon, cod, tuna and the krill, also be present in the phospholipid of plant chlorophyll, in vegetables oil, contain 7-12% in walnut oil, soybean oil and the rapeseed oil approximately, contain about 50% in the linseed oil, and perilla oil content is up to 60-70%.Fish oil is owing to be rich in timnodonic acid (EPA) and docosahexenoic acid (DHA), very easily oxidation, in processing and preservation process, easily produce the superoxide that is harmful to human body, on the other hand, DHA is the active function form of omega-3, and α-linolenic acid (LN) and EPA only just are converted into DHA when human body needs, and the animality omega-3 of human body excess intake can cause the effect of paying that DHA is excessive and produce, for example, blood viscosity is too low, symptoms such as nasal bleeding.In addition, because animal body contains materials such as cholesterol, they and EPA, DHA are not easily separated, so the omega-3 of animal-origin has materials such as cholesterol.Simultaneously, adopt traditional pressing method, the α that squeezes-linolenic acid content and recovery rate are low, and the oxidation that is subject to air produces superoxide, color and luster is deepened and muddiness, degradation.
The object of the present invention is to provide a kind of preparation method of improved α-linolenic acid.
Above-mentioned purpose of the present invention realizes in the following manner: a kind of preparation method of α-linolenic acid, comprise the perillaseed seed is soaked, squeezing then, clarification, it is characterized in that in the pressed oil of upper strata, adding the vitamin-E of 0.5-1.5% weight, carrying out ultrafiltration after stirring, is the ultra-filtration membrane of 0.3 μ by the aperture, and pressure is 1.5-2.5Kg/cm
2, obtain containing the alpha-linolenic acid oil of 65-70% weight.
The mixed with olive oil that it is characterized in that in pressed oil lower floor clear liquor and press residue adding 10%-15% weight evenly after, squeeze again, the pressed oil clarification, get the upper strata clarified oil, add the vitamin-E of 1% weight, carrying out ultrafiltration after stirring, is that the ultrafiltration membrane pressure of 0.3 μ is 2Kg/cm by the aperture
2, obtain containing the alpha-linolenic acid oil of 60-65% weight.
It is further characterized in that phosphatidyl ethanolamine or the collaborative oxidation inhibitor of phosphatidyl serine that adds 0.1-0.5% in the alpha-linolenic acid oil that contains vitamin-E.
Advantage of the present invention shows, the perillaseed oil colours is yellowish, the oil clarification, smell delicate fragrance, be rich in alpha-linolenic acid oil, in order to solve the perilla oil poor stability, add the collaborative oxidation inhibitor of vitamin-E and/or sweet oil and/or phosphatidyl ethanolamine or phosphatidylserine among the present invention, if do not contain vitamin-E in α-linolenic acid and/or phospholipid does not then have antioxygenation; Simultaneously, if add the sweet oil that has good stability in the oil, its stability and recovery rate improve greatly, general traditional squeezing process, recovery rate only about 10%, and technology of the present invention, recovery rate is brought up to more than 20%, and α-linolenic acid content is also much higher than traditional simple squeezing process by ultrafiltration technology.For example, adopt the alpha-linolenic acid oil-contg only about 10% in the perilla oil that traditional technology obtains, and alpha-linolenic acid oil-contg 60%-70% at least in the perilla oil that technology of the present invention obtains, inclusion-free exists.
Below, with the present invention is described in further detail in conjunction with specific embodiments.Embodiment 1:
Soak in 60 ℃ of warm water of purple perilla seed (oleaginousness 50%) immersion with 1000 parts of weight, impurity elimination, drain after, it is dropped into board-like squeezing machine, adopt the oil expression of intermittent squeezing method, press once again after the residue that pressed is collected, oil expression clarification layering, after the vitamin-E that the upper strata clarified oil is added 1% weight stirs, carrying out ultrafiltration, is the ultra-filtration membrane of 0.3 μ by the aperture, at 2Kg/cm
2Under the pressure, flow be 200 liters/hour, obtain the perilla oil of 200 parts of weight, the content of α-linolenic acid wherein is 65-70%, inclusion-free exists, and is more stable to atmospheric oxidation.Embodiment 2:
Pressed oil lower floor clear liquor and 1000 parts of press residues of getting 1000 parts of weight among the embodiment 1 add the sweet oil of 10-15% weight, after mixing, squeeze again, the pressed oil clarification, get the upper strata clarified oil, after the interpolation vitamin e1 .5% weight, carry out ultrafiltration, by the aperture is the ultra-filtration membrane of 0.3 μ, and pressure is 1.5Kg/cm
2Obtain containing perilla oil 220-280 part weight of the linolenic oil of 60-65% weight.Embodiment 3-4:
Get the 100 parts of weight of perilla oil that obtain among the embodiment 1, add the phosphatidyl ethanolamine (embodiment 3) of 0.5 part of weight or add the phosphatidyl serine (embodiment 4) of 0.1 part of weight,, obtain more stable alpha-linolenic acid oil through stirring.Embodiment 5:
Get the 100 parts of weight of perilla oil that obtain among the embodiment 2, add the phosphatidyl ethanolamine of 0.1 part of weight and the phosphatidyl serine of 0.2 part of weight,, obtain more stable alpha-linolenic acid oil through stirring.
The foregoing description only for illustrative purposes, protection scope of the present invention will embody in claims.
Claims (4)
1. the preparation method of an alpha-linolenic acid oil, comprise perilla seed in 60 ℃ of immersions, impurity elimination, squeezing, clarification operation, it is characterized in that in the clarified oil of upper strata, adding the vitamin-E of 1% weight, after stirring, carry out ultrafiltration, by the aperture is the ultra-filtration membrane of 0.3 μ, and pressure is 1.5-2.5Kg/cm
2, obtain containing the alpha-linolenic acid oil of 65-70% weight.
2. the method for claim 1, it is characterized in that mixed with olive oil that lower floor's clear liquor of pressed oil and press residue add 10%-15% weight evenly after, squeeze again, the pressed oil clarification, get the upper strata clarified oil, add the vitamin-E of 1.5% weight, after stirring, carry out ultrafiltration, obtain containing the alpha-linolenic acid oil of 60-65% weight.
3. the method for claim 1 is characterized in that adding phosphoric acid acyl thanomin and/or the phosphatidyl serine of 0.1-0.5% in alpha-linolenic acid oil.
4. method as claimed in claim 2 is characterized in that in alpha-linolenic acid oil adding phosphatidyl ethanolamine and/or the phosphatidyl serine of 0.1-0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116617A CN1184805A (en) | 1996-12-13 | 1996-12-13 | Method for preparing alpha-flax oil acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116617A CN1184805A (en) | 1996-12-13 | 1996-12-13 | Method for preparing alpha-flax oil acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1184805A true CN1184805A (en) | 1998-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116617A Pending CN1184805A (en) | 1996-12-13 | 1996-12-13 | Method for preparing alpha-flax oil acid |
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| CN (1) | CN1184805A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062897C (en) * | 1998-08-17 | 2001-03-07 | 清华大学 | Method for extracting linolenic acid from linseed oil |
| CN100418633C (en) * | 2005-03-28 | 2008-09-17 | 武汉工业学院 | Technology for perilla seed peeling oil pressing at low temparatnre |
-
1996
- 1996-12-13 CN CN96116617A patent/CN1184805A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062897C (en) * | 1998-08-17 | 2001-03-07 | 清华大学 | Method for extracting linolenic acid from linseed oil |
| CN100418633C (en) * | 2005-03-28 | 2008-09-17 | 武汉工业学院 | Technology for perilla seed peeling oil pressing at low temparatnre |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |