WO2006051940A1 - L-オルニチン結晶およびその製造方法 - Google Patents
L-オルニチン結晶およびその製造方法 Download PDFInfo
- Publication number
- WO2006051940A1 WO2006051940A1 PCT/JP2005/020812 JP2005020812W WO2006051940A1 WO 2006051940 A1 WO2006051940 A1 WO 2006051940A1 JP 2005020812 W JP2005020812 W JP 2005020812W WO 2006051940 A1 WO2006051940 A1 WO 2006051940A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ortin
- solution
- aqueous solution
- exchange resin
- aqueous
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/38—Separation; Purification; Stabilisation; Use of additives
- C07C227/40—Separation; Purification
- C07C227/42—Crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C229/26—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one amino group bound to the carbon skeleton, e.g. lysine
Definitions
- the present invention relates to a crystal of L-ortin (L-ortin crystal) and a method for producing the same.
- L-ortin is widely used as a component of nutritional supplements and pharmaceuticals, L-ortin is usually difficult to obtain as a crystal because of its free base. It is distributed in the form of salts such as hydrochloride (Sigma Product Catalog 2004 2005 edition).
- L-orthotine when used as a component such as an infusion for the purpose of enhancing nutrition, for example, if hydrochloride is used as it is, it may cause acidosis. In addition, it is not preferable to administer an infusion containing a large amount of chloride ions, particularly in patients with renal diseases. Furthermore, it is well known that L-orthine is difficult to use due to its bitter taste, for example, when it is mixed with food as a nutritional supplement or used as it is orally. . For this reason, L-orthine as a free base is required, but as described above, it is difficult to obtain L-ortine crystals. In general, an amorphous amino acid is not preferable as a distribution form having high hygroscopicity. Accordingly, there is a need for a L-ortine crystal that is favorable as a distribution form and a production method thereof.
- Patent Document 1 Japanese Patent Publication No. 46-3194
- Patent Document 2 Japanese Patent Laid-Open No. 4-364155
- Patent Document 3 Japanese Patent Application Laid-Open No. 55-136254
- Patent Document 4 Japanese Patent Laid-Open No. 2003-144088
- An object of the present invention is to provide an L-ortine crystal that is excellent as a source of L-ortine and a method for producing the same.
- the present invention relates to the following (1) to (11).
- L-ortinine is eluted from the cation exchange resin adsorbed with L-orthine with an aqueous alkaline solution, and the alkaline component is removed from the obtained eluate to obtain an aqueous L-orthine solution.
- a method for producing a crystal of L-ortin comprising a step.
- a method for producing crystals of L-ortin comprising a step of mixing an aqueous solution of L-ortin with a hydrophilic organic solvent and crystallizing L-ortin from the obtained mixed solution.
- L-ortin or a salt thereof or a composition containing them or a solution containing them is applied to a cation exchange resin, and L-ortin is adsorbed to the cation exchange resin.
- Step (ii) L-ortin is eluted with an aqueous alkali solution from the cation exchange resin adsorbed with L-orthine, and the alkaline component is removed from the obtained eluate to remove L-ortinine.
- L-orthine crystals comprising the steps of: obtaining an aqueous solution; and (iii) mixing the L-ortin aqueous solution with a hydrophilic organic solvent and crystallizing the obtained mixed solution from the L-ortin. Manufacturing method.
- an L-ortine crystal excellent as a source of L-ortine and a method for producing the same.
- the L-orthine content in the L-ortine crystal of the present invention is preferably 95% by weight or more, more preferably 97% by weight or more.
- the crystals of less than 5 wt%, preferably more Yogu also contain less than 3 wt% water, less than 5% by weight, preferably 3 by weight 0/0 less than methanol, ethanol, propanol, Contains a hydrophilic organic solvent such as isopropyl alcohol, n- butanol, ethylene glycol, acetone, acetonitrile, N, N-dimethylformamide, N, N-dimethylacetamide, etc.
- the L-orthine crystal of the present invention has a plurality of crystal forms, and the L-orthine crystal of the present invention includes all these crystal forms.
- the alkaline component of the present invention is, for example, a cation exchange resin adsorbed with L-ortin and an L-oline contained in an eluate obtained by eluting L-ortin with an alkaline aqueous solution.
- sodium hydroxide sodium salt for example, when eluted with sodium hydroxide aqueous solution
- sodium carbonate for example, when eluted with an aqueous sodium carbonate solution
- ammonia for example, eluted with aqueous ammonia
- L-ortinine As a raw material of the method for producing L-ortin crystals of the present invention, the ability to use various forms of L-ortinine, for example, L-ortin or a salt thereof, a composition containing them, and a composition containing them A solution such as an aqueous solution (L-orthine solution), cation exchange resin adsorbed with L-ortinine, etc. are used.
- the L-orthine contained in the raw material is produced by any method, for example, one produced by fermentation, one produced by chemical synthesis, or one produced by combining fermentation and chemical synthesis. It may be the one.
- L-orthine 'hydrochloride Sigma Catalog 2004-2005
- L-orthine L-aspartate special Kaihei 4-3 64155
- L-orthine 'malate JP 55-136254
- L-orthine' succinate CAS Registry No. 24870-67-5) .
- the composition containing the above L-orthotine or a salt thereof is not particularly limited as long as it contains the above-mentioned L-orthotine or a salt thereof.
- Fermented products eg, mixtures of L-orthotine and bacterial cells, acids, bases, inorganic salts, solvents, etc.
- L-orthine and the substances used in its production eg, L- And a mixture of the above-mentioned L-ornithine salts.
- L-orthotine solution a solution in which the above-mentioned L-orthine or a salt thereof or a composition containing them is dissolved in water, a hydrophilic organic solvent or a mixed solvent thereof.
- an aqueous solution of L-ortinine, an aqueous solution containing L-ortin in which commercially available L-orthine hydrochloride is dissolved in water, or a fermentation method can be used.
- An L-ortin culture medium is preferable, and an ornithine culture medium is preferable.
- the above L-ortin culture solution used in the present invention can be obtained by, for example, a conventionally known fermentation method. Can get more. That is, L-orthotin-producing bacteria such as Corynebatarum 'Gnoretamicum, Corynebatatrium'acetoazidophilum, Corynebataterum' Hakiyuris, Corynebataterum 'Lilium, Brevibaterudium Dino.
- L-orthotin-producing bacteria such as Corynebatarum 'Gnoretamicum, Corynebatatrium'acetoazidophilum, Corynebataterum' Hakiyuris, Corynebataterum 'Lilium, Brevibaterudium Dino.
- Ribacatum, Brevibaterium, Flabum, Brevibaterium 'Imariofilum, Brevibaterium' Ratatofumentumum ', Brevipacterum'Tiogentalis' including carbon sources, nitrogen sources, inorganic salts, vitamins, etc.
- L-ortin When cultured in an ordinary medium with aerobic conditions and adjusting the temperature, pH, etc. as appropriate, L-ortin is produced and accumulated in the culture. Obtainable. As long as it contains nutrients necessary for the growth of L-ortin-producing bacteria such as carbon source, nitrogen source, inorganic salt, and vitamin, and the biosynthesis of L-ortin, the above-mentioned medium is a synthetic medium or natural medium. Either of these may be used.
- Any carbon source can be used as long as it can be assimilated by the microorganism used, for example, sugars such as glucose and fructose, alcohols such as ethanol and glycerol, organic acids such as acetic acid, etc. Can give.
- the nitrogen source include ammonia, ammonium salts such as ammonium sulfate, nitrogen compounds such as ammine, and natural nitrogen sources such as peptone and soybean hydrolysate.
- examples of inorganic salts include potassium phosphate, magnesium sulfate, sodium chloride salt, ferrous sulfate, potassium carbonate, and the like.
- vitamins include piotin and thiamine.
- a substance required for growth by L-ornithine-producing bacteria for example, a required amino acid in the case of an amino acid-requiring microorganism
- the culture is preferably carried out under aerobic conditions such as shaking culture and aeration-agitation culture.
- the culture temperature is 20 to 50 ° C, preferably 20 to 42 ° C, more preferably 28 to 38 ° C.
- the culture pH is 5-9, preferably 6-7.5.
- the culture time is 5 hours to 5 days, preferably 16 hours to 3 days. Separation of the culture solution and the cells from the culture can be performed by a conventionally known method.
- a Nutsche when separating the culture solution and the cells by filtration or centrifugation, a Nutsche, a filter press, A Laval centrifuge can be used.
- the pH of the culture it is preferable to adjust the pH of the culture to 1.5 to 3.8, preferably 1.5 to 1.8, with hydrochloric acid, sulfuric acid, nitric acid, etc., preferably added with sulfuric acid. .
- the process for producing L-orthine crystals of the present invention comprises (i) L-ortine or a salt thereof or Is a step of applying a composition containing them or a solution containing them to a cation exchange resin and adsorbing L-ortin to the cation exchange resin, (ii) a cation adsorbing L-ortin Elution of L-ortin from the exchange resin with an alkaline aqueous solution and removal of the alkaline component from the resulting eluate to obtain an L-ornitine aqueous solution; and (iii) an aqueous solution of L—ornitine as a hydrophilic organic solvent. And at least one step of crystallizing L-ornitine from the resulting mixed solution.
- L-ortin or a salt thereof or a composition containing them or a solution containing them is applied to a cation exchange resin, and L-ortin is adsorbed to the cation exchange resin.
- the step of allowing the cation exchange resin to adsorb the L-orthine or the salt thereof, the composition containing them or the L-ortine contained in the L-ortin solution is subjected to cation exchange.
- L-ortin is adsorbed to the cation exchange resin by passing it through a column filled with rosin.
- the cation exchange resin is preferably washed with water or the like as necessary.
- the cation exchange resin used include strong acid cation exchange resins. Specifically, the gel type strong acid cation exchange resin having a sulfonic acid having a strength of styrene dibutylbenzene copolymer as an exchange group.
- L-ornithine was eluted from the cation exchange resin adsorbed with L-orthine with an alkaline aqueous solution, and the alkaline component was removed from the obtained eluate to remove L-ol-tin.
- the step of obtaining an aqueous tin solution is, for example, using an alkaline aqueous solution from a cation exchange resin adsorbed with L-ortin, preferably from a cation exchange resin adsorbed with L-ortine by the method (i) above. In this step, L-ortin is eluted and the resulting eluate strength alkaline component is removed to obtain an L-ortin aqueous solution.
- alkaline aqueous solution for example, 1 to 6 molZL is preferable.
- ammonia water is more preferred, which is preferably an aqueous solution of an organic amine having a low boiling point such as methylamine or dimethylamine.
- the eluate containing L-ortine eluted with the above alkaline aqueous solution is neutralized to the isoelectric point of L-ornitine with, for example, hydrochloric acid, sulfuric acid or acetic acid. (Removal of alkali component).
- the obtained solution is preferably subjected to a desalting treatment and used in the next step (iii).
- the desalting treatment method include conventionally known methods.
- aqueous alkali solution such as aqueous ammonia
- the resulting eluate containing L-ortin is dissolved only by concentrating under reduced pressure.
- the components can be removed, and an aqueous L-ortine solution can be easily prepared.
- an L-orthotin aqueous solution can be obtained by concentrating the eluate under normal pressure or reduced pressure.
- the concentration under reduced pressure is preferably carried out at a reduced pressure of 140 mmHg or less, more preferably 40 mmHg or less, and preferably in a temperature range of 20 to 80 ° C., more preferably 40 to 50 ° C. Concentration is preferably carried out until the concentration of L-orthine becomes 200 to 600 gZL, preferably 300 to 4 OOgZL.
- the step of mixing an aqueous solution of L-orthine with a hydrophilic organic solvent and crystallizing L-ortine from the obtained mixed solution is, for example, an aqueous solution of L-orthine, preferably Is the force to add a hydrophilic organic solvent to the L-orthine aqueous solution obtained by the method (ii) above, or an aqueous solution of L-orthine in the hydrophilic organic solvent, preferably the above-mentioned (ii)
- an L-ornithine aqueous solution obtained by the method is added, and L-ortin is crystallized from the obtained mixed solution to crystallize L-ortin.
- the aqueous solution of L-orthine is not particularly limited as long as it is an aqueous solution containing L-orthine, which is a free base.
- the aqueous solution of L-ornitine obtained in (ii) above may be used. It is more preferable that the L-ortholine aqueous solution, which is preferably used as it is or after adjusting to a predetermined concentration described later, is decolored by treatment with activated carbon or the like.
- hydrophilic organic solvent examples include methanol, ethanol, propanol, isopropyl alcohol, n -butanol, ethylene glycol, acetone, acetonitrile, N, N-dimethylformamide, N, N dimethylacetamide, and the like.
- examples include methanol and ethanol.
- the L-ortin crystals are, for example, an aqueous solution of L-ortin, preferably the L-ortho-yne obtained in (ii) above.
- Chin Aqueous solution is gradually added to the aqueous solution under stirring at 0 ° C to 50 ° C, preferably at 5 ° C to room temperature, more preferably at room temperature. Then, the precipitated crystals can be separated and dried.
- the L-ortin aqueous solution obtained in (ii) above can be used as it is. It is preferable to use it after adjusting the concentration of tin to be, for example, 600 to 900 gZL, preferably 800 to 900 gZL, more preferably 860 to 880 gZL! /.
- the hydrophilic organic solvent is used in an amount of, for example, 1 to 10 times, preferably 3 to 8 times, more preferably 4 to 6 times the amount of the L-orthotine aqueous solution.
- the yield of L-orthotine crystals is obtained by, for example, stirring at 0 ° C to room temperature, preferably at 0 ° C to 10 ° C for 5 minutes to 48 hours. Can be improved.
- the separation / drying method a conventionally known method can be used.
- the precipitated L-orthotine crystals are separated by an operation such as centrifugation, single plate filtration, vacuum filtration using Nutsche, etc., and then, for example, room temperature to 50 ° C., preferably at room temperature for 5 to 90 hours, preferably Can be obtained by drying under reduced pressure for 12 to 72 hours.
- the L-ortin crystal is obtained by, for example, stirring the aqueous solution of L-ortin in a hydrophilic organic solvent at 0 ° C to room temperature.
- it can be obtained by gradually adding the L-orthine solution obtained in (ii) above, and separating and drying the precipitated crystals.
- the L ornithine aqueous solution obtained in (ii) above is used, the L obtained in (ii) above is used. It is preferred that the aqueous orthotin solution be used so that the concentration of the force L-ortin that can be used as it is is 600 to 1000 gZL, preferably 850 to 900 gZL.
- the hydrophilic organic solvent is used, for example, in an amount of 10 to 200 times, preferably 100 to 150 times the amount of the aqueous solution of L-orthine to be added.
- the mixture is stirred at 0 ° C to room temperature, preferably 0 ° C to 10 ° C for 5 minutes to 48 hours. The yield of crystals can be improved.
- the purification method of the present invention can be carried out according to the matters described in the explanation of the production method of the present invention.
- Powder X-ray crystallographic analysis Measured by RAD-X type (manufactured by Rigaku Corporation). The results are shown in Table 2.
- Example 2 In the same manner as in Example 1, the L-orthine culture solution was treated with a strongly acidic ion exchange resin, and the eluate was concentrated to 20 mL. The obtained concentrated solution was added dropwise to 500 mL of ethanol with stirring at room temperature. The precipitated crystals were collected by filtration, washed with 75 mL of ethanol, and dried under reduced pressure at 20 ° C. for 3 days to obtain L-orthotine crystals as white, columnar crystals. Yield Rate 61. 1%.
- Powder X-ray crystallographic analysis Measured by RAD-X type (manufactured by Rigaku Corporation). The results are shown in Table 4.
- L-orthine crystals (L-ortine crystals) and the production method thereof provided by the present invention are useful as a source of L-ortine.
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Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/719,122 US7772280B2 (en) | 2004-11-15 | 2005-11-14 | Crystals of L-ornithine and process for producing the same |
JP2006544998A JP4778913B2 (ja) | 2004-11-15 | 2005-11-14 | L−オルニチン結晶およびその製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-330107 | 2004-11-15 | ||
JP2004330107 | 2004-11-15 |
Publications (1)
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WO2006051940A1 true WO2006051940A1 (ja) | 2006-05-18 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/020812 WO2006051940A1 (ja) | 2004-11-15 | 2005-11-14 | L-オルニチン結晶およびその製造方法 |
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US (1) | US7772280B2 (ja) |
JP (1) | JP4778913B2 (ja) |
WO (1) | WO2006051940A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9216946B2 (en) | 2012-08-03 | 2015-12-22 | Ajinomoto Co., Inc. | Method of producing basic amino acid or basic amino acid salt |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109369434B (zh) * | 2018-12-18 | 2021-08-24 | 山东金洋药业有限公司 | 一种鸟氨酸的洗晶处理工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50135281A (ja) * | 1974-04-19 | 1975-10-27 | ||
JPS6124548A (ja) * | 1984-07-11 | 1986-02-03 | Ajinomoto Co Inc | 塩基性アミノ酸分離法におけるイオン交換樹脂操作法 |
JPH08157433A (ja) * | 1994-11-30 | 1996-06-18 | Ajinomoto Co Inc | 塩基性アミノ酸の精製方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3028424A (en) | 1959-05-11 | 1962-04-03 | Lilly Co Eli | Preparation of dl-ornithine |
FR1481195A (fr) * | 1966-04-05 | 1967-05-19 | Ile S E R T H A Soc Civ | Nouveau procédé de préparation de composés aminés amphotères à l'état pur |
US4228099A (en) * | 1978-03-17 | 1980-10-14 | The Johns Hopkins University | Ornithine and arginine salts of branched chain keto acids and uses in treatment of hepatic and renal disorders |
DE2945790A1 (de) | 1978-11-20 | 1980-05-29 | Tanabe Seiyaku Co | Neutrales kristallines salz einer basischen l-aminosaeure mit l-apfelsaeure und verfahren zu dessen herstellung |
US5227007A (en) | 1990-09-28 | 1993-07-13 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing crystals of salt of acidic amino acid and basic amino acid |
JP4042397B2 (ja) | 2001-11-07 | 2008-02-06 | ひかり製菓株式会社 | 呈味改良剤 |
-
2005
- 2005-11-14 WO PCT/JP2005/020812 patent/WO2006051940A1/ja active Application Filing
- 2005-11-14 JP JP2006544998A patent/JP4778913B2/ja not_active Expired - Fee Related
- 2005-11-14 US US11/719,122 patent/US7772280B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50135281A (ja) * | 1974-04-19 | 1975-10-27 | ||
JPS6124548A (ja) * | 1984-07-11 | 1986-02-03 | Ajinomoto Co Inc | 塩基性アミノ酸分離法におけるイオン交換樹脂操作法 |
JPH08157433A (ja) * | 1994-11-30 | 1996-06-18 | Ajinomoto Co Inc | 塩基性アミノ酸の精製方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9216946B2 (en) | 2012-08-03 | 2015-12-22 | Ajinomoto Co., Inc. | Method of producing basic amino acid or basic amino acid salt |
JP5835489B2 (ja) * | 2012-08-03 | 2015-12-24 | 味の素株式会社 | 塩基性アミノ酸又は塩基性アミノ酸塩の製造方法 |
Also Published As
Publication number | Publication date |
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JP4778913B2 (ja) | 2011-09-21 |
JPWO2006051940A1 (ja) | 2008-05-29 |
US20090082594A1 (en) | 2009-03-26 |
US7772280B2 (en) | 2010-08-10 |
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