WO2010029706A1 - 高度不飽和脂肪酸誘導体の取得方法 - Google Patents
高度不飽和脂肪酸誘導体の取得方法 Download PDFInfo
- Publication number
- WO2010029706A1 WO2010029706A1 PCT/JP2009/004311 JP2009004311W WO2010029706A1 WO 2010029706 A1 WO2010029706 A1 WO 2010029706A1 JP 2009004311 W JP2009004311 W JP 2009004311W WO 2010029706 A1 WO2010029706 A1 WO 2010029706A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fatty acid
- highly unsaturated
- unsaturated fatty
- mixture
- silver
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B7/00—Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils
- C11B7/0083—Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils with addition of auxiliary substances, e.g. cristallisation promotors, filter aids, melting point depressors
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/005—Splitting up mixtures of fatty acids into their constituents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B7/00—Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
Definitions
- the present invention relates to a method for obtaining a product of particularly good quality at a low cost when using a highly unsaturated fatty acid derivative in pharmaceuticals, cosmetics, foods and the like.
- Highly unsaturated fatty acids and their derivatives have many physiological activities such as reduction of blood fat and have been used as raw materials for pharmaceuticals, cosmetics, foods and the like for a long time. Therefore, methods for purifying highly unsaturated fatty acids and their derivatives with high purity and good quality have been studied.
- Patent Documents 1-4 describe that the silver salt used for the purification of highly unsaturated fatty acid and its derivatives can be reused, but the silver salt is very easily deteriorated. Has nature. When highly unsaturated fatty acid and its derivatives are purified using a deteriorated silver salt, impurities are mixed in and the flavor is deteriorated, and a good refined product cannot be obtained. Therefore, it is very difficult to reuse the silver salt in practice.
- the present invention realizes inexpensive provision of highly unsaturated fatty acid derivatives by increasing the efficiency of reusing a silver salt aqueous solution in a method for purifying highly unsaturated fatty acid derivatives by a silver complex method.
- the present inventors have surprisingly realized that the free fatty acid content in the silver salt aqueous solution to be reused is below a certain value.
- the present inventors have found that highly unsaturated fatty acid derivatives of good quality can be obtained even by repeatedly using an aqueous silver salt solution, and have completed the present invention.
- the present inventors have found that a highly unsaturated highly unsaturated fatty acid derivative can be obtained by making the acid value of the mixture of the fatty acid derivative before contacting with the aqueous silver salt solution not more than a certain value. It was.
- the present invention (1) In a method of obtaining a highly unsaturated fatty acid derivative by contacting a mixture of fatty acid derivatives containing a highly unsaturated fatty acid derivative with an aqueous solution of silver salt to obtain the highly unsaturated fatty acid derivative, the silver salt A method for obtaining a highly unsaturated fatty acid derivative, wherein the free fatty acid content in the aqueous solution is 0.2 meq or less per gram of silver, (2) The method for obtaining a highly unsaturated fatty acid derivative according to the above (1), wherein the free fatty acid content is 0.2 meq or less per 1 g of silver by bringing the silver salt aqueous solution into contact with an adsorbent, (3) The method for obtaining a highly unsaturated fatty acid derivative according to (1) or (2), wherein the acid value of the mixture of the fatty acid derivatives before contacting with the aqueous silver salt solution is 5 or less, (4) The high acid content according to any one of (1) to (3), wherein the mixture of (1) to
- the method for obtaining a highly unsaturated fatty acid derivative of the present invention it is possible to industrially reuse a silver salt aqueous solution in a silver complex method, and to obtain a highly unsaturated fatty acid derivative of good quality at low cost. be able to.
- % means “mass%”.
- a mixture of fatty acid derivatives is brought into contact with an aqueous solution of a silver salt to obtain the highly unsaturated fatty acid derivative.
- the free fatty acid content in the salt aqueous solution is 0.2 meq or less per 1 g of silver.
- a mixture of fatty acid derivatives having different carbon number and / or degree of unsaturation is contacted with an aqueous solution of a silver salt to form a water-soluble complex of a highly unsaturated fatty acid derivative, and a highly unsaturated that has not formed a complex.
- complex dissociation means are used to obtain a highly unsaturated fatty acid derivative.
- the free fatty acid content is 0.2 meq or less per gram of silver. It is characterized by doing.
- a highly unsaturated fatty acid means an unsaturated fatty acid having 16 or more carbon atoms and having two or more double bonds in the molecule.
- docosahexaenoic acid C22: 6, DHA
- Eicosapentaenoic acid C20: 5, EPA
- arachidonic acid C20: 4, AA
- docosapentaenoic acid C22: 5, DPA
- stearidonic acid C18: 4
- linolenic acid C18: 3
- linoleic acid C18: 2.
- the highly unsaturated fatty acid derivative obtained by the acquisition method of the present invention means a fatty acid that is not free, for example, an ester type derivative such as a methyl ester or ethyl ester of a highly unsaturated fatty acid, an amide such as an amide or methyl amide.
- an ester type derivative such as a methyl ester or ethyl ester of a highly unsaturated fatty acid
- an amide such as an amide or methyl amide.
- any silver salt that can form a complex with an unsaturated bond in an unsaturated fatty acid can be used.
- silver nitrate, silver perchlorate, silver acetate , Silver trichloroacetate, silver trifluoroacetate and the like are preferably dissolved in water to a concentration of 15% or more, more preferably 20% or more, and even more preferably 40% or more to obtain a silver salt aqueous solution, which is used for obtaining highly unsaturated fatty acid derivatives.
- the silver salt concentration in the silver salt aqueous solution may be the saturation concentration as the upper limit.
- the free fatty acid content in the silver salt aqueous solution can be calculated by the principle of the Duncombe method modification (Duncombe W. G.: Clin. Chem. Acta., 9, 122-125, 1964). Specifically, a copper test solution is added to the sample to form a salt of free fatty acid and copper in the sample, and this salt is separated by an extractant. By adding a color developing solution containing bathocuproine there, a chelate compound of copper and bathocuproine is generated, and the color is yellowish orange. By measuring the yellow-orange absorbance, the free fatty acid concentration in the sample can be determined.
- the free fatty acid content can be made 0.2 meq or less per 1 g of silver by contacting with an adsorbent.
- the adsorbent include activated carbon, activated alumina, activated clay, acidic clay, silica gel, diatomaceous earth, aluminum oxide, and magnesium oxide, and one or more of these can be used.
- the contact method between the silver salt aqueous solution and the adsorbent is not particularly limited.
- the adsorbent is charged into the silver salt aqueous solution and stirred, or the adsorbent is filled.
- a method of passing the aqueous silver salt solution through the prepared column may be used.
- the free fatty acid content can be reduced to 0.2 meq or less per gram of silver by adjusting the dilution / concentration or by extracting with an organic solvent.
- the concentration of the recovered silver salt aqueous solution can be adjusted by evaporating water by reducing pressure or heating, or by adding silver salt or water appropriately while measuring the specific gravity.
- the free fatty acid content in the silver salt aqueous solution to be reused may be 0.2 meq or less per gram of silver, preferably 0.18 meq or less per gram of silver, and 0.12 meq or less per gram of silver.
- the flavor and acid value of the polyunsaturated fatty acid derivative obtained are more preferable.
- the acid value of the mixture of fatty acid derivatives before being brought into contact with the silver salt aqueous solution is 5 or less.
- the free fatty acid content in the silver salt aqueous solution after the treatment is hardly increased, and the free fatty acid content in the silver salt aqueous solution is easily managed to be 0.2 meq or less per 1 g of silver. Therefore, the silver salt aqueous solution can be efficiently recycled.
- the adsorbent can be brought into contact with the adsorbent as a means for reducing the acid value to 5 or less before bringing the mixture of fatty acid derivatives into contact with the aqueous silver salt solution.
- the adsorbent include activated carbon, activated alumina, activated clay, acidic clay, silica gel, diatomaceous earth, aluminum oxide, and magnesium oxide, and one or more of these can be used.
- the method of contacting the mixture of fatty acid derivatives with the adsorbent is not particularly limited.
- the adsorbent is charged into the mixture and stirred, or the adsorbent is filled.
- a method of passing the mixture through the column As a means for reducing the acid value of the mixture of fatty acid derivatives before contact with the aqueous silver salt solution to 5 or less, a distillation method may be used.
- the method of selectively separating a highly unsaturated fatty acid derivative from a mixture of fatty acid derivatives is a method of combining an unsaturated bond and a complex with the above-mentioned mixture of fatty acid derivatives containing a highly unsaturated fatty acid derivative.
- An aqueous solution of a silver salt that can be formed is added, and the mixture is preferably stirred for 5 minutes to 4 hours, more preferably 10 minutes to 2 hours to form a water-soluble silver salt-highly unsaturated fatty acid derivative complex. It is carried out by selectively dissolving only the derivative in an aqueous silver salt solution.
- the reaction temperature between the above highly unsaturated fatty acid derivative and the aqueous silver salt solution may be a lower limit as long as the aqueous silver salt solution is liquid and the upper limit is up to 100 ° C. From the viewpoint of stability, solubility of silver salt in water, complex formation rate, etc., 10 to 30 ° C. is preferable.
- the light is shielded from light under an inert gas, for example, a nitrogen atmosphere. Is preferred.
- the method for dissociating the highly unsaturated fatty acid derivative from the complex of the highly unsaturated fatty acid derivative and the silver salt is not particularly limited. For example, extraction with an organic solvent or addition of water makes the highly unsaturated fatty acid derivative insoluble. And a method of separating them.
- the amount of free fatty acid per gram of silver can be calculated by the following formulas (2) and (3).
- Example 1 Highly unsaturated fatty acid ethyl ester was obtained from a mixture of fatty acid ethyl esters by the following method. First, 350 kg of distilled water was added to 350 kg of silver nitrate, and the mixture was stirred and dissolved. To 700 kg of this silver nitrate aqueous solution, 154 kg of a mixture of fatty acid ethyl esters (acid number 0.08, POV 3.3, EPA ethyl ester concentration 45.6%, DHA ethyl ester concentration 3.8%) was added, and 20 ° C. at 20 ° C. Stir for minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was discarded, only the lower layer was separated, 1000 kg of water was added, and the mixture was stirred at 60 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated. The upper layer was separated to obtain a highly unsaturated fatty acid ethyl ester concentrate. Separately, a lower layer containing silver nitrate was taken and the free fatty acid content was measured. The lower layer containing silver nitrate was concentrated, adjusted for concentration, and used again for purification of highly unsaturated fatty acid ethyl ester. This operation was repeated to process 14 batches of the above mixture. The results are shown in Table 1.
- the free fatty acid content of the aqueous silver nitrate solution during recycling was always 0.2 meq or less per gram of silver.
- the obtained product (EPA ethyl ester concentration 81-84%) had good quality such as POV, acid value, and flavor.
- Example 2 Highly unsaturated fatty acid ethyl ester was obtained from a mixture of fatty acid ethyl esters by the following method. First, 350 kg of distilled water was added to 350 kg of silver nitrate, and the mixture was stirred and dissolved. To 700 kg of this silver nitrate aqueous solution, 150 kg of a mixture of fatty acid ethyl esters (acid value 5.98, POV2.1, EPA ethyl ester concentration 44.3%, DPA ethyl ester concentration 5.1%) was mixed at 10 ° C. Stir for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was discarded, only the lower layer was separated, 1000 L of water was added, and the mixture was stirred at 60 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated. The upper layer was separated to obtain a highly unsaturated fatty acid ethyl ester concentrate. Separately, a lower layer containing silver nitrate was taken, and 10% of aluminum oxide was added to the lower layer. After stirring at 60 ° C. for 20 minutes, the aluminum oxide was removed by filtration. The free fatty acid content of the lower layer after this aluminum oxide treatment was measured. The lower layer after the aluminum oxide treatment was then concentrated and adjusted in concentration, and again used for obtaining highly unsaturated fatty acid ethyl ester. Table 2 shows the results of repeating this operation and processing 10 batches. The obtained materials (EPA ethyl ester concentration of 80 to 84%) all had good quality such as POV, acid value, and flavor.
- Example 3 Highly unsaturated fatty acid methyl esters were obtained from a mixture of fatty acid methyl esters by the following method. First, 350 kg of distilled water was added to 350 kg of silver nitrate, and the mixture was stirred and dissolved. To 700 kg of this silver nitrate aqueous solution, 150 kg of a mixture of fatty acid methyl esters (acid value 6.74, POV 2.3, EPA methyl ester concentration 46.2%, DPA methyl ester concentration 3.6%) was mixed at 10 ° C. Stir for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was discarded, only the lower layer was separated, 900 L of cyclohexane was added, and the mixture was stirred at 50 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated. The upper layer was separated to obtain a highly unsaturated fatty acid methyl ester concentrate. Separately, a lower layer containing silver nitrate was taken, and 10% of aluminum oxide was added to the lower layer. After stirring at 60 ° C. for 20 minutes, the aluminum oxide was removed by filtration. The free fatty acid content of the lower layer after this aluminum oxide treatment was measured. The lower layer after the aluminum oxide treatment was subjected to concentration adjustment and used again for obtaining highly unsaturated fatty acid methyl ester. Table 3 shows the results of repeating this operation and processing 10 batches. The obtained materials (EPA methyl ester concentration of 84 to 89%) all had good quality such as POV, acid value and flavor.
- Example 4 According to the following method, 40 batches of a mixture of fatty acid ethyl esters were processed to obtain highly unsaturated fatty acid ethyl esters.
- 350 kg of distilled water was added to 350 kg of silver nitrate, and the mixture was stirred and dissolved.
- a mixture of fatty acid ethyl esters (40 batches: acid value 0.05 to 4.11, POV 2.2 to 3.5, EPA ethyl ester concentration 41.1 to 58.1%, DHA ethyl ester Of 3.9 to 8.7%) was mixed and stirred at 10 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was discarded, only the lower layer was separated, 1000 kg of water was added, and the mixture was stirred at 60 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was separated to obtain a highly unsaturated fatty acid ethyl ester concentrate.
- a lower layer containing silver nitrate was taken and the free fatty acid content was measured. This lower layer containing silver nitrate is concentrated and adjusted, and when the free fatty acid content of the silver nitrate aqueous solution approaches 0.2 meq per gram of silver, it is appropriately treated with activated carbon to obtain highly unsaturated fatty acid ethyl ester again. Used for.
- the activated carbon treatment was performed by adding 10% activated carbon to the amount of the silver nitrate aqueous solution, stirring at 60 ° C. for 20 minutes under heating, and performing filtration.
- the aqueous silver nitrate solution after the activated carbon treatment was used again for obtaining highly unsaturated fatty acid ethyl ester.
- Table 4 shows the result of repeating this operation. Acquired products obtained by using an aqueous solution of silver nitrate with appropriate free activated fatty acid treatment and reduced free fatty acid content (75-84% EPA ethyl ester concentration) all have good quality such as POV, acid value, and flavor. was.
- Example 5 Highly unsaturated fatty acid ethyl ester was obtained from a mixture of fatty acid ethyl esters by the following method. First, 300 kg of aluminum oxide was added to 2000 kg of a mixture of fatty acid ethyl esters (acid number 7.32, POV 2.3, EPA ethyl ester concentration 42.3%, DHA ethyl ester concentration 1.6%) and stirred for 1 hour. did. Thereafter, aluminum oxide was removed by filtration, and the acid value was measured and found to be 0.06.
- a lower layer containing silver nitrate was taken and the free fatty acid content was measured.
- This lower layer containing silver nitrate was subjected to concentration and concentration adjustment, and again used for obtaining highly unsaturated fatty acid ethyl ester.
- the free fatty acid content of the aqueous silver nitrate solution was always 0.2 meq or less per gram of silver (Table 5).
- the obtained product (EPA ethyl ester concentration 81-85%) had good quality such as POV, acid value and flavor.
- Example 6 Highly unsaturated fatty acid ethyl ester was obtained from a mixture of fatty acid ethyl esters by the following method. First, 350 kg of distilled water was added to 400 kg of silver perchlorate, and stirred and dissolved. 160 kg of a mixture of fatty acid ethyl esters (acid number 0.06, POV 2.7, EPA ethyl ester concentration 47.9%, DHA ethyl ester concentration 3.2%) was added to 750 kg of this silver perchlorate aqueous solution. Stir at 20 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated.
- the upper layer was discarded, only the lower layer was separated, 1000 kg of water was added, and the mixture was stirred at 60 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated. The upper layer was separated to obtain a highly unsaturated fatty acid ethyl ester concentrate. Separately, a lower layer containing silver perchlorate was taken and the free fatty acid content was measured. The lower layer containing silver perchlorate was concentrated, adjusted in concentration, and used again to obtain highly unsaturated fatty acid ethyl ester. This operation was repeated to process 10 batches of the above mixture. The results are shown in Table 6.
- the free fatty acid content of the silver perchlorate aqueous solution was always 0.2 meq or less per gram of silver.
- the obtained product (EPA ethyl ester concentration of 82 to 85%) had good quality such as POV, acid value and flavor.
- the upper layer was discarded, only the lower layer was separated, 1000 kg of water was added, and the mixture was stirred at 60 ° C. for 20 minutes. Thereafter, the mixture was left for 1 hour until the two layers were separated. The upper layer was separated to obtain a highly unsaturated fatty acid ethyl ester concentrate. Separately, a lower layer containing silver nitrate was taken and the free fatty acid content was measured. This lower layer containing silver nitrate was subjected to concentration and concentration adjustment, and again used for obtaining highly unsaturated fatty acid ethyl ester. This operation was repeated to purify 3 batches of the above mixture. The results are shown in Table 7.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
(1)高度不飽和脂肪酸の誘導体を含有する脂肪酸の誘導体の混合物を銀塩の水溶液と接触せしめ、高度不飽和脂肪酸誘導体を取得する方法において、上記銀塩水溶液を繰り返し使用するにあたり、上記銀塩水溶液中の遊離脂肪酸含量を、銀1g当り0.2meq以下とすることを特徴とする、高度不飽和脂肪酸誘導体の取得方法、
(2)銀塩水溶液を、吸着剤に接触せしめることにより遊離脂肪酸含量を銀1g当り0.2meq以下とする、前記(1)の高度不飽和脂肪酸誘導体の取得方法、
(3)上記銀塩水溶液に接触せしめる前の上記脂肪酸の誘導体の混合物の酸価が5以下である、前記(1)又は(2)の高度不飽和脂肪酸誘導体の取得方法、
(4)銀塩水溶液に接触せしめる前の上記脂肪酸の誘導体の混合物を、吸着剤に接触せしめることにより酸価を5以下とする、前記(1)乃至(3)のいずれかに記載の高度不飽和脂肪酸誘導体の取得方法、
である。
より詳細には、炭素数及び/又は不飽和度の異なる脂肪酸誘導体の混合物を銀塩の水溶液と接触せしめ、高度不飽和脂肪酸誘導体の水溶性錯体を形成させ、錯体を形成していない高度不飽和脂肪酸誘導体以外の脂肪酸誘導体を除去した後、錯体解離の手段を施し、高度不飽和脂肪酸誘導体を取得する方法において、銀塩水溶液を繰り返し使用するにあたり、遊離脂肪酸含量を銀1g当り0.2meq以下とすることを特徴とする。
また、銀塩水溶液を回収し、再利用する前に、希釈・濃度調整することによって、あるいは、有機溶媒で抽出することによって遊離脂肪酸含量を銀1g当り0.2meq以下とすることもできる。回収した銀塩水溶液の濃度調整は、減圧・加熱による水の蒸発により、あるいは比重を測定しながら適宜銀塩や水を加えることにより行なうことができる。
再利用する銀塩水溶液中の遊離脂肪酸含量は、銀1g当り0.2meq以下であれば良いが、好ましくは、銀1g当り0.18meq以下、さらに銀1g当り0.12meq以下であれば、得られる高度不飽和脂肪酸誘導体の風味、酸価がより好ましくなる。
銀塩水溶液に接触せしめる前の脂肪酸の誘導体の混合物の酸価を5以下にする手段としては、蒸留法でもよい。
1.標準溶液の調製
(1)ミリスチン酸0.114gを100mLメスフラスコに精密に量り取り、ジメチルスルホキシドでメスアップする。
(2)別に100mLメスフラスコにトリエタノールアミン1.5gを取り、純水でメスアップする。
(3)別に100mLメスフラスコにエチレンジアミン四酢酸四ナトリウム四水和物0.10gを取り、純水でメスアップする。
(4)(1)の溶液20mL、(2)の溶液10mL、(3)の溶液10mLを100mLメスフラスコに正確に取り、純水でメスアップし標準溶液とする。
(1)硫酸銅(II)五水和物6.49g及び塩化ナトリウム20.0gをビーカーに取り、純水で溶かし、100mLメスフラスコに移し、ビーカーの洗液をあわせた後、純水でメスアップする。
(2)別に100mLメスフラスコにトリエタノールアミン14.9gを取り、純水でメスアップする。
(3)(1)の溶液と(2)の溶液を同量(容量比)で混合し、銅試液とする。
バソクプロイン0.189gを250mLメスフラスコに取り、2-ブタノールでメスアップする。
(1)銀塩水溶液5μL、標準溶液500μLをそれぞれキャップ付き試験管に取り、銅試液1mLを加える。
(2)クロロホルム/ヘプタン混液(1/1、容量比)3mLをそれぞれに加え、キャップを締めて3分間激しく手で振とうする。
(3)振とう後キャップを外して遠心分離(3,000rpm)を行う。
(4)上澄み液2mLを採取し、別の試験管にいれ、発色試液2mLを加えて軽く振り混ぜる。
(5)2~3分後、純水を対照として475nmの吸光度を測定する。
下記の式(1)により、銀塩水溶液中の遊離脂肪酸濃度が算出できる。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
まず、硝酸銀350kgに蒸留水350kgを加え、攪拌・溶解した。この硝酸銀水溶液700kgに、脂肪酸エチルエステルの混合物(酸価0.08、POV3.3、EPAエチルエステルの濃度45.6%、DHAエチルエステルの濃度3.8%)154kgを加え、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。この硝酸銀を含有する下層は、濃縮後、濃度調整を行い、再度高度不飽和脂肪酸エチルエステルの精製に使用した。この操作を繰り返し、上記混合物14バッチを処理した。
この結果を表1に示す。リサイクル中の硝酸銀水溶液の遊離脂肪酸含量は常に銀1g当り0.2meq以下であった。また、得られた取得物(EPAエチルエステルの濃度81~84%)は、POV、酸価、風味等の品位が良好だった。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
まず、硝酸銀350kgに蒸留水350kgを加え、攪拌・溶解した。この硝酸銀水溶液700kgに、脂肪酸エチルエステルの混合物(酸価5.98、POV2.1、EPAエチルエステルの濃度44.3%、DPAエチルエステルの濃度5.1%)150kgを混合し、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水1000Lを添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、下層に対して10%量の酸化アルミニウムを添加し、60℃にて20分間攪拌後、ろ過により酸化アルミニウムを除去した。この酸化アルミニウム処理後の下層の遊離脂肪酸含量を測定した。この酸化アルミニウム処理後の下層は、その後濃縮・濃度調整を行い、再度高度不飽和脂肪酸エチルエステルの取得に使用した。この操作を繰り返し、10バッチを処理した結果を表2に示す。得られた取得物(EPAエチルエステルの濃度80~84%)は、いずれも、POV、酸価、風味等の品位が良好だった。
以下の方法により、脂肪酸メチルエステルの混合物から、高度不飽和脂肪酸メチルエステルを取得した。
まず、硝酸銀350kgに蒸留水350kgを加え、攪拌・溶解した。この硝酸銀水溶液700kgに、脂肪酸メチルエステルの混合物(酸価6.74、POV2.3、EPAメチルエステルの濃度46.2%、DPAメチルエステルの濃度3.6%)150kgを混合し、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、シクロヘキサン900Lを添加して、50℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸メチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、下層に対して10%量の酸化アルミニウムを添加し、60℃にて20分間攪拌後、ろ過により酸化アルミニウムを除去した。この酸化アルミニウム処理後の下層の遊離脂肪酸含量を測定した。この酸化アルミニウム処理後の下層は、その後濃度調整を行い、再度高度不飽和脂肪酸メチルエステルの取得に使用した。この操作を繰り返し、10バッチを処理した結果を表3に示す。得られた取得物(EPAメチルエステルの濃度84~89%)は、いずれも、POV、酸価、風味等の品位が良好だった。
以下の方法により、脂肪酸エチルエステルの混合物を40バッチ処理し、高度不飽和脂肪酸エチルエステルを取得した。
まず、硝酸銀350kgに蒸留水350kgを加え、攪拌・溶解した。この硝酸銀水溶液700kgに、脂肪酸エチルエステルの混合物(40バッチ:酸価0.05~4.11、POV2.2~3.5、EPAエチルエステルの濃度41.1~58.1%、DHAエチルエステルの濃度3.9~8.7%)150kgを混合し、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。この硝酸銀を含有する下層は、濃縮・濃度調整を行い、硝酸銀水溶液の遊離脂肪酸含量が、銀1g当り0.2meqに近づいた場合には適宜活性炭処理を行い、再度高度不飽和脂肪酸エチルエステルの取得に使用した。活性炭処理は、硝酸銀水溶液の量に対して10%の活性炭を添加し、60℃に加温下で20分間攪拌して、ろ過を行うことにより実施した。この活性炭処理後の硝酸銀水溶液は、再度高度不飽和脂肪酸エチルエステルの取得に使用した。この操作を繰り返した結果を表4に示す。適宜活性炭処理を行い、遊離脂肪酸含量を低減した硝酸銀水溶液を使用して得られた取得物(EPAエチルエステルの濃度75~84%)は、いずれも、POV、酸価、風味等の品位が良好だった。
なお、1~14バッチ(脂肪酸エチルエステルの混合物の酸価:0.05~1.22)の処理に対して、15、16バッチ(脂肪酸エチルエステルの混合物の酸価:4.11)の処理において、銀1g中の遊離脂肪酸含量が高くなっていることがわかる。これより、銀塩水溶液に接触せしめる脂肪酸誘導体の酸価を低くすることによって、高度不飽和脂肪酸エチルエステル取得後の銀塩中の遊離脂肪酸含量を小さく保つことができ、その結果、銀塩水溶液の再利用がしやすくなるといえる。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
まず、脂肪酸エチルエステルの混合物(酸価7.32、POV2.3、EPAエチルエステルの濃度42.3%、DHAエチルエステルの濃度1.6%)2000kgに、酸化アルミニウムを300kg加え、1時間攪拌した。その後、酸化アルミニウムをろ過にて除去し、酸価を測定したところ、0.06であった。この脂肪酸エチルエステルの混合物(酸価0.06)198kgを取り、硝酸銀360kgと蒸留水540kgとを攪拌・溶解した硝酸銀水溶液(濃度40%)900kgとを混合し、10℃で20分間攪拌した。
その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。この硝酸銀を含有する下層は、濃縮・濃度調整を行い、再度高度不飽和脂肪酸エチルエステルの取得に使用した。この操作を繰り返し、上記高度不飽和脂肪酸エチルエステルの混合物(酸価0.06)10バッチを処理した結果、硝酸銀水溶液の遊離脂肪酸含量は常に銀1g当り0.2meq以下であった(表5)。また、得られた取得物(EPAエチルエステルの濃度81~85%)は、POV、酸価、風味等の品位が良好だった。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
まず、過塩素酸銀400kgに蒸留水350kgを加え、攪拌・溶解した。この過塩素酸銀水溶液750kgに、脂肪酸エチルエステルの混合物(酸価0.06、POV2.7、EPAエチルエステルの濃度47.9%、DHAエチルエステルの濃度3.2%)160kgを加え、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途過塩素酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。この過塩素酸銀を含有する下層は、濃縮後、濃度調整を行い、再度高度不飽和脂肪酸エチルエステルの取得に使用した。この操作を繰り返し、上記混合物10バッチを処理した。この結果を表6に示す。過塩素酸銀水溶液の遊離脂肪酸含量は常に銀1g当り0.2meq以下であった。また、得られた取得物(EPAエチルエステルの濃度82~85%)は、POV、酸価、風味等の品位が良好だった。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
硝酸銀350kgに蒸留水350kgを加え、攪拌・溶解した。この硝酸銀水溶液700kgに、脂肪酸エチルエステルの混合物(酸価10.20、POV3.7、EPAエチルエステルの濃度49.0%、DHAエチルエステルの濃度8.6%)150kgを加え、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。この硝酸銀を含有する下層は、濃縮・濃度調整を行い、再度高度不飽和脂肪酸エチルエステルの取得に使用した。この操作を繰り返し、上記混合物3バッチを精製した。この結果を表7に示す。表7より、硝酸銀水溶液接触前の、脂肪酸エチルエステルの混合物の酸価が5を超えると、取得に使用する硝酸銀水溶液を繰り返し使用した場合に、硝酸銀水溶液に含まれる遊離脂肪酸が増加し、その結果、取得物である高度不飽和脂肪酸誘導体のPOVおよび酸価が高くなり、風味も良好でないことがわかる。
以下の方法により、脂肪酸エチルエステルの混合物から、高度不飽和脂肪酸エチルエステルを取得した。
参考例1で、3バッチの原料を処理した硝酸銀水溶液(遊離脂肪酸含量:銀1g当り0.319meq)に、脂肪酸エチルエステルの混合物(酸価0.08、POV3.3、EPAエチルエステルの濃度45.6%、DHAエチルエステルの濃度3.8%)154kgを加え、10℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を捨て、下層のみを分取し、水を1000kg添加して、60℃で20分間攪拌した。その後二層分離するまで1時間放置した。この上層を分取し、高度不飽和脂肪酸エチルエステルの濃縮物を得た。また、別途硝酸銀を含有する下層を取り、遊離脂肪酸含量を測定した。その結果を表8にまとめた。表8から、高度不飽和脂肪酸誘導体の銀錯体法による取得方法において、銀塩水溶液に接触せしめる前の、脂肪酸の誘導体の混合物の酸価が低く、良好な品位のものであったとしても、上記銀塩水溶液中の遊離脂肪酸量が、銀1g当り0.2meqを超えていると、得られる高度不飽和脂肪酸誘導体の品位が良好でないことがわかる。
Claims (4)
- 高度不飽和脂肪酸の誘導体を含有する脂肪酸の誘導体の混合物を銀塩の水溶液と接触せしめ、高度不飽和脂肪酸の誘導体を取得する方法において、上記銀塩水溶液を繰り返し使用するにあたり、上記銀塩水溶液中の遊離脂肪酸含量を、銀1g当り0.2meq以下とすることを特徴とする、高度不飽和脂肪酸誘導体の取得方法。
- 銀塩水溶液を、吸着剤に接触せしめることにより遊離脂肪酸含量を銀1g当り0.2meq以下とする、請求項1に記載の高度不飽和脂肪酸の取得方法。
- 上記銀塩水溶液に接触せしめる前の上記脂肪酸の誘導体の混合物の酸価が5以下である、請求項1又は2記載の高度不飽和脂肪酸誘導体の取得方法。
- 銀塩水溶液に接触せしめる前の上記脂肪酸の誘導体の混合物を、吸着剤に接触せしめることにより酸価を5以下とする、請求項1乃至3のいずれかに記載の高度不飽和脂肪酸誘導体の取得方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK09812855.6T DK2330177T3 (en) | 2008-09-10 | 2009-09-02 | PROCEDURE FOR GETTING HIGHLY UNSaturated Fatty Acid Derivatives |
KR1020117008179A KR101692565B1 (ko) | 2008-09-10 | 2009-09-02 | 고도 불포화 지방산 유도체의 취득 방법 |
EP09812855.6A EP2330177B1 (en) | 2008-09-10 | 2009-09-02 | Method for acquiring highly unsaturated fatty acid derivatives |
CA2736363A CA2736363C (en) | 2008-09-10 | 2009-09-02 | Method for obtaining polyunsaturated fatty acid derivatives |
AU2009290334A AU2009290334B2 (en) | 2008-09-10 | 2009-09-02 | Method for acquiring highly unsaturated fatty acid derivatives |
ES09812855.6T ES2621318T3 (es) | 2008-09-10 | 2009-09-02 | Método de adquisición de derivados de ácido graso altamente insaturados |
US13/062,969 US8680305B2 (en) | 2008-09-10 | 2009-09-02 | Method for obtaining polyunsaturated fatty acid derivatives |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008231773A JP5503856B2 (ja) | 2008-09-10 | 2008-09-10 | 高度不飽和脂肪酸誘導体の取得方法 |
JP2008-231773 | 2008-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010029706A1 true WO2010029706A1 (ja) | 2010-03-18 |
Family
ID=42004972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/004311 WO2010029706A1 (ja) | 2008-09-10 | 2009-09-02 | 高度不飽和脂肪酸誘導体の取得方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8680305B2 (ja) |
EP (1) | EP2330177B1 (ja) |
JP (1) | JP5503856B2 (ja) |
KR (1) | KR101692565B1 (ja) |
AU (1) | AU2009290334B2 (ja) |
CA (1) | CA2736363C (ja) |
DK (1) | DK2330177T3 (ja) |
ES (1) | ES2621318T3 (ja) |
WO (1) | WO2010029706A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012038833A1 (en) * | 2010-09-24 | 2012-03-29 | Pronova Biopharma Norge As | Process for concentrating omega-3 fatty acids |
US20140335580A1 (en) * | 2011-09-21 | 2014-11-13 | Board Of Supervisors Of Lousiana State University And Agricultural And Mechanical College | Method for Enrichment of Eicosapentaenoic Acid and Docosahexaenoic Acid in Source Oils |
WO2017191821A1 (ja) * | 2016-05-02 | 2017-11-09 | 日清ファルマ株式会社 | 高度不飽和脂肪酸含有組成物の製造方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6302310B2 (ja) | 2013-08-30 | 2018-03-28 | 備前化成株式会社 | 高純度オメガ3系脂肪酸エチルエステルの生産方法 |
JP6234908B2 (ja) * | 2013-09-30 | 2017-11-22 | 日清ファルマ株式会社 | エイコサペンタエン酸及び/又はドコサヘキサエン酸含有組成物の製造方法 |
US20160361285A1 (en) * | 2014-02-28 | 2016-12-15 | Bizen Chemical Co., Ltd. | Method for purifying stearidonic acid |
CA2987370A1 (en) * | 2015-06-01 | 2016-12-08 | Bizen Chemical Co., Ltd. | Novel production method of highly unsaturated fatty acid ethyl ester |
DK3305754T3 (da) * | 2015-06-01 | 2022-02-07 | Bizen Chemical Co Ltd | Fremgangsmåder til fremstilling af højumættet fedtsyre med høj renhed med højt udbytte |
EP3609393A4 (en) | 2017-04-13 | 2021-04-21 | Atcor Medical Pty Ltd | NON-INVASIVE BLOOD PRESSURE MEASUREMENT |
US10899994B2 (en) * | 2017-06-14 | 2021-01-26 | Nisshin Pharma Inc. | Method for producing polyunsaturated fatty acid-containing composition |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH031954B2 (ja) | 1985-03-18 | 1991-01-11 | Shiraha Akira | |
JPH04126798A (ja) * | 1990-09-17 | 1992-04-27 | Shokuhin Sangyo High Separeeshiyon Syst Gijutsu Kenkyu Kumiai | 遊離脂肪酸を含むグリセリドからの遊離脂肪酸の分離方法 |
JP2786748B2 (ja) | 1991-01-28 | 1998-08-13 | ハリマ化成株式会社 | 高度不飽和脂肪酸類の精製方法 |
JP2895258B2 (ja) | 1990-04-24 | 1999-05-24 | ハリマ化成株式会社 | 高度不飽和脂肪酸類の選択的取得方法 |
JP2935555B2 (ja) | 1990-10-19 | 1999-08-16 | ハリマ化成株式会社 | 高度不飽和脂肪酸の分離精製法 |
JP2001240893A (ja) * | 1999-12-20 | 2001-09-04 | Q P Corp | エイコサペンタエン酸又はその誘導体の精製方法 |
JP2001335794A (ja) * | 2000-05-29 | 2001-12-04 | Q P Corp | ドコサヘキサエン酸又はその誘導体の精製方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277412A (en) * | 1980-01-02 | 1981-07-07 | The Proctor & Gamble Company | Fractionation of triglyceride mixtures |
JPH031954A (ja) | 1989-05-30 | 1991-01-08 | Matsushita Electric Ind Co Ltd | インパクトプリンタ |
CA2040925C (en) * | 1990-04-24 | 2000-01-25 | Yoshihisa Misawa | Method of purifying polyunsaturated aliphatic compounds |
JP3001954B2 (ja) * | 1990-10-24 | 2000-01-24 | 財団法人相模中央化学研究所 | 高度不飽和脂肪酸の取得方法 |
GB9212788D0 (en) | 1992-06-16 | 1992-07-29 | Efamol Holdings | Separation of unsaturates |
EP0760393B1 (de) * | 1995-08-17 | 2003-06-04 | F. Hoffmann-La Roche Ag | Chromatographie-Verfahren |
JP2000044983A (ja) | 1998-07-31 | 2000-02-15 | Maruha Corp | 二重結合を有する脂肪酸またはその誘導体の精製法 |
CA2311974A1 (en) | 1999-06-28 | 2000-12-28 | Nisshin Flour Milling Co., Ltd. | Processes of selectively separating and purifying eicosapentaenoic and docosahexaenoic acids or their esters |
JP2006241245A (ja) * | 2005-03-01 | 2006-09-14 | Daiki Axis:Kk | 使用済食用油脂の再生処理方法及びその処理剤 |
JP4078383B1 (ja) * | 2007-03-30 | 2008-04-23 | バイオエナジーズジャパン株式会社 | バイオディーゼル燃料の製造方法 |
-
2008
- 2008-09-10 JP JP2008231773A patent/JP5503856B2/ja active Active
-
2009
- 2009-09-02 US US13/062,969 patent/US8680305B2/en active Active
- 2009-09-02 DK DK09812855.6T patent/DK2330177T3/en active
- 2009-09-02 WO PCT/JP2009/004311 patent/WO2010029706A1/ja active Application Filing
- 2009-09-02 KR KR1020117008179A patent/KR101692565B1/ko active IP Right Grant
- 2009-09-02 EP EP09812855.6A patent/EP2330177B1/en active Active
- 2009-09-02 CA CA2736363A patent/CA2736363C/en active Active
- 2009-09-02 ES ES09812855.6T patent/ES2621318T3/es active Active
- 2009-09-02 AU AU2009290334A patent/AU2009290334B2/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH031954B2 (ja) | 1985-03-18 | 1991-01-11 | Shiraha Akira | |
JP2895258B2 (ja) | 1990-04-24 | 1999-05-24 | ハリマ化成株式会社 | 高度不飽和脂肪酸類の選択的取得方法 |
JPH04126798A (ja) * | 1990-09-17 | 1992-04-27 | Shokuhin Sangyo High Separeeshiyon Syst Gijutsu Kenkyu Kumiai | 遊離脂肪酸を含むグリセリドからの遊離脂肪酸の分離方法 |
JP2935555B2 (ja) | 1990-10-19 | 1999-08-16 | ハリマ化成株式会社 | 高度不飽和脂肪酸の分離精製法 |
JP2786748B2 (ja) | 1991-01-28 | 1998-08-13 | ハリマ化成株式会社 | 高度不飽和脂肪酸類の精製方法 |
JP2001240893A (ja) * | 1999-12-20 | 2001-09-04 | Q P Corp | エイコサペンタエン酸又はその誘導体の精製方法 |
JP2001335794A (ja) * | 2000-05-29 | 2001-12-04 | Q P Corp | ドコサヘキサエン酸又はその誘導体の精製方法 |
Non-Patent Citations (2)
Title |
---|
DUNCOMBE W. G., CLIN. CHEM. ACTA., vol. 9, 1964, pages 122 - 125 |
See also references of EP2330177A4 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101904392B1 (ko) * | 2010-09-24 | 2018-10-05 | 프로노바 바이오파마 너지 에이에스 | 오메가-3 지방산을 농축하기 위한 공정 |
US20130317241A1 (en) * | 2010-09-24 | 2013-11-28 | Harald Breivik | Process for concentrating omega-3 fatty acids |
JP2013542927A (ja) * | 2010-09-24 | 2013-11-28 | プロノヴァ・バイオファーマ・ノルゲ・アーエス | ω3脂肪酸を濃縮する方法 |
WO2012038833A1 (en) * | 2010-09-24 | 2012-03-29 | Pronova Biopharma Norge As | Process for concentrating omega-3 fatty acids |
EP2619298A4 (en) * | 2010-09-24 | 2015-08-19 | Pronova Biopharma Norge As | METHOD FOR CONCENTRATING OMEGA 3 FATTY ACIDS |
US9145533B2 (en) * | 2010-09-24 | 2015-09-29 | Pronova Blopharm Norge AS | Process for concentrating omega-3 fatty acids |
AU2011306471B2 (en) * | 2010-09-24 | 2016-06-02 | Pronova Biopharma Norge As | Process for concentrating omega-3 fatty acids |
US20140335580A1 (en) * | 2011-09-21 | 2014-11-13 | Board Of Supervisors Of Lousiana State University And Agricultural And Mechanical College | Method for Enrichment of Eicosapentaenoic Acid and Docosahexaenoic Acid in Source Oils |
WO2017191821A1 (ja) * | 2016-05-02 | 2017-11-09 | 日清ファルマ株式会社 | 高度不飽和脂肪酸含有組成物の製造方法 |
CN109072126A (zh) * | 2016-05-02 | 2018-12-21 | 日清药业股份有限公司 | 含有高度不饱和脂肪酸的组合物的制造方法 |
JPWO2017191821A1 (ja) * | 2016-05-02 | 2019-03-07 | 日清ファルマ株式会社 | 高度不飽和脂肪酸含有組成物の製造方法 |
US10597607B2 (en) | 2016-05-02 | 2020-03-24 | Nisshin Pharma Inc. | Method for producing polyunsaturated fatty acid-containing composition |
JP6990174B2 (ja) | 2016-05-02 | 2022-02-03 | 日清ファルマ株式会社 | 高度不飽和脂肪酸含有組成物の製造方法 |
CN109072126B (zh) * | 2016-05-02 | 2022-03-22 | 日清药业股份有限公司 | 含有高度不饱和脂肪酸的组合物的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
ES2621318T3 (es) | 2017-07-03 |
CA2736363C (en) | 2016-08-16 |
JP2010064974A (ja) | 2010-03-25 |
AU2009290334A8 (en) | 2011-04-07 |
CA2736363A1 (en) | 2010-03-18 |
US8680305B2 (en) | 2014-03-25 |
EP2330177B1 (en) | 2017-03-01 |
EP2330177A4 (en) | 2013-10-16 |
KR20110091647A (ko) | 2011-08-12 |
JP5503856B2 (ja) | 2014-05-28 |
KR101692565B1 (ko) | 2017-01-03 |
AU2009290334B2 (en) | 2015-03-26 |
EP2330177A1 (en) | 2011-06-08 |
DK2330177T3 (en) | 2017-06-12 |
US20110224452A1 (en) | 2011-09-15 |
AU2009290334A1 (en) | 2010-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5503856B2 (ja) | 高度不飽和脂肪酸誘導体の取得方法 | |
RU2360952C2 (ru) | Способ получения композиции, содержащей ненасыщенные соединения | |
US20020026063A1 (en) | Process for making an enriched mixture of polyunsaturated fatty acid esters | |
WO2014054435A1 (ja) | 高度不飽和脂肪酸アルキルエステル含有組成物の製造方法 | |
JP6751086B2 (ja) | 高度不飽和脂肪酸エチルエステルの新規製造方法 | |
JP2008255231A (ja) | フコキサンチンとフコイダンの同時製造方法 | |
CN107922307B (zh) | 高纯度、高收率的高度不饱和脂肪酸的生产方法 | |
JP6234908B2 (ja) | エイコサペンタエン酸及び/又はドコサヘキサエン酸含有組成物の製造方法 | |
JP2895258B2 (ja) | 高度不飽和脂肪酸類の選択的取得方法 | |
CN112430500A (zh) | 一种降低多不饱和脂肪酸油中茴香胺值的方法 | |
WO2016058282A1 (zh) | 一种脲包工艺中尿素的回收方法 | |
JPH04159398A (ja) | 高度不飽和脂肪酸の取得方法 | |
JPH04243849A (ja) | 高度不飽和脂肪酸類の精製方法 | |
WO2011039776A1 (en) | High purity concentrates of polyunsaturated fatty acid and ester by copper complexation. | |
CN106748780B (zh) | 一种注射用合成油脂金属残留的脱除方法 | |
WO2020196749A1 (ja) | エイコサペンタエン酸アルキルエステル含有組成物の製造方法 | |
CN107848945B (en) | Process for producing highly unsaturated fatty acid ethyl ester | |
KR20140003437A (ko) | 다중불포화 지방산을 금속 수소화물로 안정화시키는 방법 | |
JP2009191102A (ja) | 銅錯体形成を利用する高度不飽和脂肪酸トリグリセリドの濃縮方法 | |
JPH06248288A (ja) | 高度不飽和脂肪酸類を分別回収する方法 | |
JPH06248289A (ja) | 高度不飽和脂肪酸類を選択的に分離回収する方法 | |
JPH07278585A (ja) | エイコサペンタエン酸又はそのエステルの精製方法 | |
JPH09143488A (ja) | 高度不飽和脂肪酸エステルの精製方法 | |
JPS5925691A (ja) | 乳酸の精製法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09812855 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2009812855 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009812855 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009290334 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2736363 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2009290334 Country of ref document: AU Date of ref document: 20090902 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20117008179 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13062969 Country of ref document: US |