WO2025005689A1 - Ph 조절을 이용한 l-발린 결정 및/또는 과립 제조 방법 - Google Patents
Ph 조절을 이용한 l-발린 결정 및/또는 과립 제조 방법 Download PDFInfo
- Publication number
- WO2025005689A1 WO2025005689A1 PCT/KR2024/008993 KR2024008993W WO2025005689A1 WO 2025005689 A1 WO2025005689 A1 WO 2025005689A1 KR 2024008993 W KR2024008993 W KR 2024008993W WO 2025005689 A1 WO2025005689 A1 WO 2025005689A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valine
- fermentation solution
- crystals
- fermentation
- granules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
- C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine
-
- 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
- C07C229/06—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 only one amino and one carboxyl group bound to the carbon skeleton
- C07C229/08—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 only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to hydrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
Definitions
- the present application relates to a method for producing valine crystals and granules, which can reduce the amount of steam required during the production of valine granules and improve the production efficiency of valine granules by forming valine crystals and mixed granules having a low moisture content.
- products with high amino acid content are not required, and it may be more appropriate to produce granular products with high content (over 70%) that include other nutritionally valuable components contained in the fermentation solution without generating waste during the purification step.
- valine has low solubility, crystals are formed even when the solid content in the fermentation solution is as low as about 12 to 15% (moisture content of 85 to 88%), and therefore the moisture content of the fermentation solution cannot be reduced to prevent crystal formation. Therefore, a large amount of water must be evaporated during the drying process, so a large amount of energy is consumed during drying.
- Patent Document 1 US 7514111 B2
- Patent Document 2 US 10072278 B2
- the present application aims to provide a method for producing valine crystals, comprising the steps of: preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; concentrating the fermentation solution to prepare a concentrated fermentation solution; and separating valine crystals containing water from the concentrated fermentation solution.
- the present application aims to provide a method for producing valine granules, including the steps of preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; concentrating the fermentation solution to prepare a concentrated fermentation solution; separating valine crystals containing moisture from the concentrated fermentation solution; mixing the valine crystals with seeds to produce valine mixed granules; and drying the valine mixed granules.
- the present application provides a method for producing valine crystals, comprising the steps of: preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; concentrating the fermentation solution to prepare a concentrated fermentation solution; and separating valine crystals containing water from the concentrated fermentation solution.
- the present application provides a method for producing valine granules, comprising: a step of preparing a fermentation solution containing valine; a step of controlling the pH of the fermentation solution; a step of concentrating the fermentation solution to prepare a concentrated fermentation solution; a step of separating valine crystals containing moisture from the concentrated fermentation solution; a step of mixing the valine crystals with seeds to produce valine mixed granules; and a step of drying the valine mixed granules.
- a fermentation solution containing valine can be concentrated to separate valine moisture, and the separated valine moisture and seeds can be mixed to produce valine mixed granules having a large size and low moisture content.
- the valine mixed granules having a low moisture content have the advantage of requiring less energy for drying.
- the moisture content in the valine mixed granules can be further reduced by adjusting the pH of the fermentation solution and/or controlling the concentration speed.
- the term “about” may be presented before a specific numerical value.
- the term “about” as used in this application includes not only the exact number described after the term, but also a range that is or is nearly that number. Whether the number is or is nearly the specific number referred to can be determined based on the context in which it is presented. As an example, the term “about” may refer to a range of -10% to +10% of a numerical value. As another example, the term “about” may refer to a range of -5% to +5% of a given numerical value. However, the present invention is not limited thereto.
- the present application relates to a method and a manufacturing device for valine granules, wherein valine mixed granules in which valine moisture and seeds are mixed are formed and dried, thereby reducing the amount of steam consumed in the process of manufacturing valine, an amino acid with low solubility, and increasing the efficiency of manufacturing valine granules.
- the method for manufacturing valine crystals comprises the steps of preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; concentrating the fermentation solution to prepare a concentrated fermentation solution; and separating valine crystals containing water from the concentrated fermentation solution. Each step will be described in detail below.
- the step of preparing a fermentation solution is a step of preparing a fermentation solution containing valine.
- Valine contained in the fermentation solution is an amino acid with low solubility in water. In this case, low solubility does not mean that the solubility is below a certain standard.
- the fermentation solution prepared in the step of preparing a fermentation solution may be a fermentation product prepared by the metabolism of a strain.
- the term "fermentation product" in the present application may mean a result of enzymatic or metabolic decomposition of an organic substance using a microorganism, for example, a microorganism that produces valine.
- the fermentation product may include a culture obtained by culturing a microorganism in a culture medium, or a concentrate, dried product, or lyophilized product of the culture obtained by removing a strain therefrom.
- the fermentation solution may include the entire fermentation product containing valine, or may be a fermentation product containing valine from which impurities have been removed.
- the fermentation solution contains valine as a main component, but may further contain other components.
- valine in addition to valine, other amino acids, organic acids, and inorganic substances may be provided in the fermentation solution, and these may be dissolved in water.
- the concentration of valine in the fermentation solution may be from about 1 g/L to about 200 g/L.
- concentration of valine described above is merely exemplary, and a fermentation solution having a concentration outside the above-described range may also be used in the method for producing a valine crystal according to one embodiment of the present application.
- the "microorganism producing valine” or “microorganism having valine-producing ability” used in the step of preparing the fermentation solution of the present application includes both a wild-type microorganism naturally having valine-producing ability or a microorganism in which valine-producing ability is imparted to a parent strain without valine-producing ability through natural or artificial genetic modification, and may be a microorganism whose specific mechanism is weakened or strengthened due to causes such as the insertion of an external gene or the strengthening or inactivation of the activity of an endogenous gene, and may be a microorganism including genetic modification for the production of the target amino acid, i.e., valine.
- the microorganism producing valine or the microorganism having valine-producing ability in the present application may be a microorganism in which some of the genes in the biosynthetic pathway of valine, which is the target product, are strengthened or weakened, or some of the genes in the valine decomposition pathway are strengthened or weakened.
- the "strengthening" or “increasing" of the valine-producing ability of the microorganism of the present application means that the valine-producing ability of the microorganism of the present application is improved compared to other microorganisms other than the microorganism of the present application, the parent strain, or an unmodified microorganism.
- the valine productivity of the microorganism of the present invention may be improved by about 1%, 10%, 100%, 200%, 500%, 1000%, 1100%, 1200%, or 1300% or more compared to the valine productivity of other microorganisms, and may be improved by about 1.01 times, 2 times, 5 times, 10 times, 11 times, 12 times, or 13 times, but is not limited thereto.
- the term "about” includes all of ⁇ 0.5, ⁇ 0.4, ⁇ 0.3, ⁇ 0.2, ⁇ 0.1, and the like, and includes all numerical values in a range equal to or similar to the numerical value following the term "about", but is not limited thereto.
- the above-described microorganism used in the step of preparing the fermentation solution of the present application may be at least one selected from the group consisting of the yeast Candida famata , the ascomycetes Eremothecium ashbyii and Ashbyagossypii , the bacteria Bacillus subtilis , and the microorganism of the genus Corynebacterium sp.
- the microorganism used in the step of preparing the fermentation solution of the present application is a microorganism of the genus Corynebacterium
- the microorganism is specifically Corynebacterium glutamicum , Corynebacterium crudilactis , Corynebacterium deserti , Corynebacterium efficiens , Corynebacterium callunae, Corynebacterium stationis , Corynebacterium singulare , Corynebacterium halotolerans , Corynebacterium striatum , Corynebacterium It may be Corynebacterium ammoniagenes , Corynebacterium pollutisoli, Corynebacterium imitans , Corynebacterium testudinoris, Corynebacterium crenatum , or Corynebacterium flavescens , and more specifically, Corynebacterium glutamicum , but is not limited there
- Microorganisms of the genus Corynebacterium are gram-positive microorganisms that are widely used in the production of L-amino acids and other useful substances.
- various studies are being conducted to develop highly efficient producing microorganisms and fermentation process technologies.
- target substance-specific approaches such as increasing the expression of a gene encoding an enzyme involved in the biosynthesis of L-valine or removing a gene unnecessary for biosynthesis are mainly used.
- a fermentation solution containing an amino acid can be prepared using a strain of the genus Corynebacterium.
- the Corynebacterium glutamicum utilized for preparing a fermentation solution containing valine may be, but is not limited to, an L-valine biosynthesis overexpressing strain transformed with Corynebacterium glutamicum ATCC13032 in which the L-valine biosynthesis regulatory region is inactivated.
- Corynebacterium glutamicum may be a strain transformed with the pDZDvalL, pDZDvalP, or pDZDvalS vector using the chromosome of Corynebacterium glutamicum KCCM11201P, Corynebacterium glutamicum KCCM11336P, Corynebacterium glutamicum KCCM11337P, Corynebacterium glutamicum KCCM11338P, or Corynebacterium glutamicum KCCM11201P_DvalA as a template.
- the Corynebacterium glutamicum can be, but is not limited to, a Corynebacterium glutamicum ATCC13032_DvalL, Corynebacterium glutamicum ATCC13032_DvalP, or Corynebacterium glutamicum ATCC13032_DvalS strain, and includes, without limitation, a microorganism capable of producing a fermentation broth comprising valine (US 10072278 B2).
- the step of preparing the fermentation solution may further include a step of cultivating a "microorganism producing valine.”
- the cultivation of the microorganism may be performed according to a suitable medium and culture conditions known in the art. This culture process may be easily adjusted and used by a person skilled in the art according to the selected strain. Specifically, the culture may be batch, continuous, and fed-batch, but is not limited thereto.
- the term "medium” means a material containing nutrients as main components necessary for culturing the microorganism, and supplies nutrients and growth factors, including water essential for survival and growth.
- the medium and other culture conditions used for culturing the microorganism of the present application may be any medium used for culturing general microorganisms without particular limitation, but the microorganism of the present application may be cultured in a general medium containing an appropriate carbon source, nitrogen source, phosphorus, inorganic compound, amino acid, and/or vitamin, etc., under aerobic conditions while controlling temperature, pH, etc.
- the pH of the fermentation solution can be adjusted to about 3.0 or more and less than 6.0.
- the pH of the fermentation solution can be adjusted to about 3.5 to less than 6.0, about 4.0 to less than 6.0, about 4.5 to less than 6.0, about 5.0 to less than 6.0, about 5.5 to less than 6.0, greater than about 3.0 to 5.5, about 3.5 to 5.5, about 4.0 to 5.5, about 4.5 to 5.5, about 5.0 to 5.5, greater than about 3.0 to 5.0, about 3.5 to 5.0, about 4.0 to 5.0, about 4.5 to 5.0, greater than about 3.0 to 4.5, about 3.5 to 4.5, about 4.0 to 4.5, greater than about 3.0 to 4.0, about 3.5 to 4.0 or greater than about 3.0 to 3.5.
- the size and hardness of the valine crystals formed in the subsequent concentration step can be controlled. Specifically, when the pH of the fermentation solution is adjusted to the above-described range and then concentration is performed, large and hard valine crystals can be formed, and thus the moisture content of the separated valine crystals can be reduced. If the pH of the fermentation solution is outside the above-described range, the crystal size of the valine crystals precipitated after concentration is small, making it difficult to separate the valine crystals from the fermentation solution mother liquor. In addition, since a relatively large amount of moisture is separated together with the valine crystals, a lot of energy is required for subsequent drying.
- the pH adjustment can be performed using a conventional acidic substance or basic substance.
- the substance added to the fermentation solution for pH adjustment can be determined as long as it does not affect the physical properties or chemical structure of valine contained in the fermentation solution.
- an edible acidic substance or basic substance can be added.
- a procedure such as heating the fermentation solution may be performed to completely dissolve valine that may have precipitated in the fermentation solution, if necessary.
- the fermentation solution may be heated to about 60°C to about 90°C.
- a step of concentrating the prepared fermentation liquid to prepare a concentrated fermentation liquid is performed.
- concentration step water in the fermentation solution is removed to precipitate valine in the form of crystals.
- Concentration can be carried out in various ways. Concentration can be carried out in a conventional concentrator (e.g., a paddle dryer, a slurry dryer, a vacuum concentrator, a forced circulation concentrator, a thin film concentrator, or a rotary concentrator, etc.) according to the selection of a person skilled in the art.
- a conventional concentrator e.g., a paddle dryer, a slurry dryer, a vacuum concentrator, a forced circulation concentrator, a thin film concentrator, or a rotary concentrator, etc.
- concentration can be performed by removing moisture in the fermentation broth at a rate of 60 g/L/hr to 150 g/L/hr (meaning that 60 g to 150 g of moisture per liter of fermentation broth is removed for 1 hour). In some cases, concentration can be performed by removing moisture in the fermentation broth at a rate of 90 g/L/hr to 150 g/L/hr, 120 g/L/hr to 150 g/L/hr, 60 g/L/hr to 120 g/L/hr, 90 g/L/hr to 120 g/L/hr or 60 g/L/hr to 90 g/L/hr.
- the concentration rate is a factor affecting the size of valine crystals.
- the valine crystals When concentrated at the above-described rate, relatively large-sized valine crystals are formed, and the valine crystals can be easily separated from the fermentation broth mother liquor. In addition, moisture in the valine crystals is reduced accordingly.
- a separation step is performed to separate the valine crystals precipitated by the concentration step from the mother liquor.
- a solid-liquid separator such as a pressure-reducing membrane filtration device, a pressure-reducing membrane filtration device, or a centrifugal separator can be used.
- a pressure-reducing membrane filtration device such as a pressure-reducing membrane filtration device, a pressure-reducing membrane filtration device, or a centrifugal separator.
- the above-described means are exemplary, and the means for performing the separation step are not limited to the above-described examples.
- the remaining mother liquor after separation of valine crystals can be used again for concentration. Accordingly, valine that did not form a wet crystal in the concentration step or valine that was precipitated as crystals smaller than a certain size and remained in the mother liquor without being separated in the valine crystal separation step can be recycled.
- an additional process such as heating the fermentation liquor can be performed to re-dissolve valine that was precipitated in the form of fine crystals in the fermentation liquor, if necessary.
- valine crystals having a low moisture content and being easy to separate can be obtained by controlling the pH of a fermentation solution containing valine and concentrating the fermentation solution at an appropriate speed.
- the valine crystals manufactured according to one embodiment of the present application may have a viscosity of more than 0 cp and less than 80 cp.
- the viscosity of the valine crystal is more than 10 cp and less than 80 cp, more than 15 cp and less than 80 cp, more than 20 cp and less than 80 cp, more than 30 cp and less than 80 cp, more than 40 cp and less than 80 cp, more than 50 cp and less than 80 cp, more than 60 cp and less than 80 cp, more than 0 cp and less than 70 cp, more than 10 cp and less than 70 cp, more than 15 cp and less than 70 cp, more than 20 cp and less than 70 cp, more than 30 cp and less than 70 cp, more than 40 cp and less than 70 cp, more than 50 cp and less than 70 cp, more than 60 cp
- the valine crystals manufactured according to one embodiment of the present application can contain 10 wt % to 55 wt % of moisture.
- the valine crystals can contain 20 wt % to 55 wt %, 30 wt % to 55 wt %, 40 wt % to 55 wt %, 50 wt % to 55 wt %, 10 wt % to 50 wt %, 20 wt % to 50 wt %, 30 wt % to 50 wt %, 40 wt % to 50 wt %, 10 wt % to 40 wt %, 20 wt % to 40 wt %, 30 wt % to 40 wt %, 10 wt % to 30 wt %, 20 wt % to 30 wt %, or 10 wt % to 20 wt % of moisture. Since the valine crystals having the moisture content described above have
- a method for manufacturing valine granules comprises the steps of: preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; concentrating the fermentation solution to prepare a concentrated fermentation solution; separating valine crystals containing water from the concentrated fermentation solution; mixing the valine crystals with seeds to prepare valine mixed granules; and drying the valine mixed granules.
- the steps of preparing a fermentation solution, adjusting the pH of the fermentation solution, concentrating the fermentation solution, and separating valine crystals can be performed in the same manner as in the method for manufacturing valine crystals described above.
- the steps of mixing valine crystals with seeds to manufacture mixed granules; and the steps of drying the mixed granules will be mainly described.
- the valine crystals obtained in the valine crystal separation step are mixed with seeds for manufacturing valine granules.
- the seed used in the mixed granule manufacturing step is also called a seed crystal or seed crystal, and may refer to a substance used as a catalyst for crystallization or granulation of a liquid.
- the seed in the present application may be a valine crystal.
- the seeds used in the mixed granule manufacturing step may have an average particle size of 150 to 300 ⁇ m. Specifically, seeds having an average particle size of 150 to 250 ⁇ m, 200 to 300 ⁇ m, or 200 to 250 ⁇ m may be used, but are not limited thereto.
- the particle size of the seeds used may ultimately affect the productivity of manufacturing granules according to the present application, and may be appropriately selected by those skilled in the art in consideration of the desired moisture content, etc.
- a mixed granulator can be used in the mixed granule manufacturing step.
- the mixed granulator can obtain granules by injecting seeds into the mixed granulator through a feeder at a constant rate while simultaneously supplying valine crystals obtained in the previous separation step.
- the mixed granulator can each include a feeder for supplying seeds therein and a member for supplying valine crystals.
- a gas nozzle for generating air flow inside a chamber, a paddle for mixing the seeds and valine crystals provided in the chamber, etc. can be provided inside the mixed granulator.
- amino acid mixed granules having a low moisture content and a large crystal size can be manufactured by mixing the seed and the amino acid moisture content.
- valine crystals having a large crystal size are precipitated, and since the valine crystals having a large crystal size can be easily separated from the fermentation liquid, the moisture content in the valine crystals is relatively low.
- the valine crystals having a low moisture content and the seed are granulated in a mixed granulator in the mixed granule manufacturing step, the manufactured valine mixed granules also have a low moisture content and a large size.
- granules are macroscopic particles which are permanent aggregates of larger particles such as powders, and may have an average particle diameter of 50 ⁇ m to 5 mm, 75 ⁇ m to 4 mm or 100 ⁇ m to 3 mm.
- the valine mixed granules obtained in the mixed granule manufacturing step may contain 10 wt% to 50 wt% of moisture.
- the valine mixed granules may contain 20 wt% to 50 wt%, 30 wt% to 50 wt%, 40 wt% to 50 wt%, 10 wt% to 40 wt%, 20 wt% to 40 wt%, 30 wt% to 40 wt%, 10 wt% to 30 wt%, 20 wt% to 30 wt% or 10 wt% to 20 wt% of moisture.
- This is a low moisture content compared to amino acid granules obtained according to the prior art. Therefore, the amount of energy required to dry the valine mixed granules obtained according to the present application can be reduced.
- a drying step is performed to dry the valerian mixed granules to obtain an amino acid product.
- valine product in the present application means a product in which valine contained in a fermentation solution is manufactured into various formulations.
- the valine product may mean a valine-containing mixture in the form of granules.
- the formulation of the valine product may be changed as long as it does not change the invention of the present application.
- a subsequent process may be further performed to implement various formulations of valine products.
- the above-described valine product can be used as an additive for animal feed, etc., and there is no limitation on the use.
- a fermentation solution containing amino acids can be concentrated to separate amino acid moisture, and the separated amino acid moisture can be mixed with seeds to produce amino acid mixed granules having a large size and low moisture content.
- Amino acid mixed granules having low moisture content have the advantage of requiring less energy for drying.
- the moisture content in the amino acid mixed granules can be further reduced by adjusting the pH of the fermentation solution or controlling the concentration speed.
- Corynebacterium glutamicum KCCM11338P (US 10072278 B2), one of the strains producing L-valine, was cultured in a medium containing 5% glucose, 2% ammonium sulfate, 0.1% monobasic potassium phosphate, 0.05% magnesium sulfate (7-hydrate), 2.0% CSL (corn steep liquor), 200 ⁇ g/L biotin, and pH 7.2 at about 30°C for 72 hours to obtain a fermentation broth having the following composition.
- the fermentation broth contains the cultured medium and microorganisms, and the moisture content and composition were analyzed therefrom.
- Table 2 shows the results of the analysis of the composition of the valine fermentation broth.
- the fermentation solution having an L-valine concentration of 80 g/L prepared in Experimental Example 1 was divided into 2 L portions, and sulfuric acid was added to prepare process solutions according to pH (7.5 to 3.0).
- a vacuum concentrator was used to concentrate the process solution at a rate of 60 g/L/hr under a vacuum of 120 torr until the valine concentration of the process solution became 200 g/L.
- the concentrated crystal slurry containing valine crystals was subjected to solid-liquid separation using a basket separator to obtain L-valine crystals and a mother liquor.
- the LOD moisture measurement results confirmed that the moisture content in the valine crystals was low when the pH of the fermentation solution was over 3.0 and under 6.0.
- the viscosity of the concentrated slurry was analyzed, it was confirmed that the viscosity of the concentrated slurry was low when the pH of the fermentation solution was over 3.0 and under 6.0.
- the low viscosity of the concentrated slurry means that the size of the valine crystals contained in the concentrated slurry is large, and not many fine crystals were formed.
- the fermentation solution with a pH of 7.0 where the viscosity of the concentrated slurry was high, it was analyzed that many fine valine crystals were formed, resulting in a high slurry viscosity.
- the pH of the fermentation solution affects the formation of valine crystals. Specifically, it was confirmed that large valine crystals were formed in a specific pH range, which resulted in a low viscosity of the concentrated slurry and low moisture in the separated crystals.
- Example 1 the fermentation broth with an L-valine concentration of 80 g/L was divided into 5 L portions, and sulfuric acid was added to adjust the pH of the fermentation broth to 3.8.
- a vacuum evaporator was used to concentrate the mixture at a vacuum of 120 torr until the concentration reached 200 g/L.
- the concentration rate was varied from 18 g/L/hr to 120 g/L/hr for each batch, and the properties of the concentrated crystal slurries obtained at different concentration rates were compared.
- the concentration rate was calculated by expressing the concentration of valine (g/L) concentrated per hour based on the time taken for moisture to be removed from the initial valine concentration of 80 g/L of the fermentation broth until the valine concentration reached 200 g/L. The volume of condensate and the time required for this were measured to calculate the concentration rate.
- the concentrated crystal slurry containing valine crystals was subjected to solid-liquid separation using a basket separator to obtain L-valine crystals and mother liquor.
- the moisture content in the valine crystals according to the concentration rate was compared.
- the moisture content in the valine crystals according to the fermentation broth concentration rate was compared through LOD analysis.
- Sulfuric acid was added to 10 L of the fermentation broth containing 80 g/L of L-valine to adjust the pH of the fermentation broth to 3.8.
- a vacuum evaporator was used to concentrate the broth at a rate of 60 g/L/hr under a vacuum of 120 torr until the concentration of the fermentation broth became 200 g/L.
- the concentrated crystal slurry was separated into solid and liquid using a decanter to obtain 840 g of L-valine solid and 2850 mL of supernatant. At this time, the moisture content of the valine crystal was confirmed to be 37 wt%, and the valine crystal yield was 80.0% based on the fermentation solution.
- Valine crystals were manufactured using the same method as in Experimental Example 4, and the separated valine crystals and pre-dried valine seeds (valine content 75 w/w%) were mixed to manufacture crystals having a moisture content of 15% to 47%, respectively, and then valine mixed granule crystals were manufactured using a mixing granulator.
- mixed granules could be manufactured using a mixed granulator for all crystals with a moisture content of 15% to 47%.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
| 조성 | 값(g/L) |
| 발린 | 80.0 |
| 기타 아미노산 | 8.8 |
| 유기산 | 0.7 |
| 무기물 | 11.0 |
| 수분(%) | 89.0 |
| 발효액의 pH | 7.0 | 6.0 | 5.0 | 4.0 | 3.0 |
| 슬러리 점도(cp) | 89 | 80 | 20.5 | 16.0 | 90 |
| 결정 내 수분함량(중량%) | 45 | 40 | 32 | 30 | 39 |
| 농축속도(g/L/hr) | 18 | 30 | 60 | 90 | 120 |
| 슬러리 점도(cp) | 측정불가 | 99.7 | 16.0 | 8.3 | 6.7 |
| 결정 내 수분함량(중량%) | 분리안됨 | 58 | 35 | 29 | 28 |
| 혼합수분(%) | 15.0 | 24.0 | 30.0 | 35.0 | 47.0 | |
| 설비 | Type | CVG Mixer | ||||
| rpm | 2000 | |||||
| 혼합 과립유무 | O | O | O | O | O | |
Claims (7)
- 발린을 포함하는 발효액을 준비하는 단계;상기 발효액의 pH를 조절하는 단계;상기 발효액을 농축하여 농축 발효액을 준비하는 단계; 및상기 농축 발효액에서 수분을 포함하는 발린 결정을 분리하는 단계를 포함하는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발효액의 pH를 조절하는 단계에서 상기 발효액의 pH는 3.0 초과 내지 6.0 미만으로 조절되는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발효액을 농축하여 농축 발효액을 준비하는 단계는 상기 발효액 내 수분을 60 g/L/hr 내지 150 g/L/hr의 속도로 제거하여 수행되는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발린 결정은 점도가 O 초과 내지 80 cp 미만인, 발린 결정 제조방법.
- 제1항에 있어서,상기 발린 결정은 10 중량% 내지 55 중량%의 수분을 포함하는, 발린 결정 제조방법.
- 발린을 포함하는 발효액을 준비하는 단계;상기 발효액의 pH를 조절하는 단계;상기 발효액을 농축하여 농축 발효액을 준비하는 단계;상기 농축 발효액에서 수분을 포함하는 발린 결정을 분리하는 단계;상기 발린 결정을 시드와 혼합하여 발린 혼합과립을 제조하는 단계; 및상기 발린 혼합과립을 건조하는 단계를 포함하는, 발린 과립 제조 방법.
- 제6항에 있어서,상기 혼합과립은 10 중량% 내지 50 중량%의 수분을 포함하는, 발린 과립 제조 방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480040764.5A CN121420068A (zh) | 2023-06-28 | 2024-06-27 | 通过使用pH控制制备L-缬氨酸晶体和/或颗粒的方法 |
| EP24832466.7A EP4711468A1 (en) | 2023-06-28 | 2024-06-27 | Method for preparing l-valine crystals and/or granules by using ph control |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2023-0083410 | 2023-06-28 | ||
| KR20230083410 | 2023-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025005689A1 true WO2025005689A1 (ko) | 2025-01-02 |
Family
ID=93939364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2024/008993 Ceased WO2025005689A1 (ko) | 2023-06-28 | 2024-06-27 | Ph 조절을 이용한 l-발린 결정 및/또는 과립 제조 방법 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4711468A1 (ko) |
| KR (1) | KR20250001453A (ko) |
| CN (1) | CN121420068A (ko) |
| WO (1) | WO2025005689A1 (ko) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0748791A2 (en) * | 1995-06-12 | 1996-12-18 | Ajinomoto Co., Inc. | Valine p-isopropylbenzene sulfonate and a process for purifying valine |
| US7514111B2 (en) | 2004-04-02 | 2009-04-07 | Cj Cheiljedang Corporation | Method for preparing granular animal feed additive and granular animal feed additive prepared by the method |
| JP2016145158A (ja) * | 2015-02-06 | 2016-08-12 | 味の素株式会社 | アミノ酸水溶液の濃縮方法とアミノ酸の分離方法 |
| US10072278B2 (en) | 2013-03-11 | 2018-09-11 | Cj Cheiljedang Corporation | Strain having enhanced L-valine productivity and L-valine production method using the same |
| CN112979482A (zh) * | 2020-12-25 | 2021-06-18 | 安徽华恒生物科技股份有限公司 | 一种高纯度l-缬氨酸及其制备方法和其应用 |
| KR20220000845A (ko) * | 2020-06-26 | 2022-01-04 | 씨제이제일제당 (주) | 발효액으로부터 아미노산 과립의 제조방법 |
| KR102380678B1 (ko) * | 2020-10-29 | 2022-04-01 | 씨제이제일제당 주식회사 | 아미노산 혼합 고형물 제조 방법 및 아미노산 혼합 고형물 제조 장치 |
-
2024
- 2024-06-27 CN CN202480040764.5A patent/CN121420068A/zh active Pending
- 2024-06-27 KR KR1020240084689A patent/KR20250001453A/ko active Pending
- 2024-06-27 WO PCT/KR2024/008993 patent/WO2025005689A1/ko not_active Ceased
- 2024-06-27 EP EP24832466.7A patent/EP4711468A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0748791A2 (en) * | 1995-06-12 | 1996-12-18 | Ajinomoto Co., Inc. | Valine p-isopropylbenzene sulfonate and a process for purifying valine |
| US7514111B2 (en) | 2004-04-02 | 2009-04-07 | Cj Cheiljedang Corporation | Method for preparing granular animal feed additive and granular animal feed additive prepared by the method |
| US10072278B2 (en) | 2013-03-11 | 2018-09-11 | Cj Cheiljedang Corporation | Strain having enhanced L-valine productivity and L-valine production method using the same |
| JP2016145158A (ja) * | 2015-02-06 | 2016-08-12 | 味の素株式会社 | アミノ酸水溶液の濃縮方法とアミノ酸の分離方法 |
| KR20220000845A (ko) * | 2020-06-26 | 2022-01-04 | 씨제이제일제당 (주) | 발효액으로부터 아미노산 과립의 제조방법 |
| KR102380678B1 (ko) * | 2020-10-29 | 2022-04-01 | 씨제이제일제당 주식회사 | 아미노산 혼합 고형물 제조 방법 및 아미노산 혼합 고형물 제조 장치 |
| CN112979482A (zh) * | 2020-12-25 | 2021-06-18 | 安徽华恒生物科技股份有限公司 | 一种高纯度l-缬氨酸及其制备方法和其应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20250001453A (ko) | 2025-01-06 |
| CN121420068A (zh) | 2026-01-27 |
| EP4711468A1 (en) | 2026-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020138815A1 (ko) | L-아미노산을 생산하는 대장균 변이주 또는 코리네박테리움 글루타미컴 변이주 및 이를 이용한 l-아미노산의 생산 방법 | |
| CN114854659B (zh) | 一种麦角硫因生产工艺及其应用 | |
| WO2019182413A1 (ko) | L-아미노산을 포함하는 과립 및 이의 제조방법 | |
| WO2019190193A1 (ko) | 글라이신 생산능이 증가된 미생물 및 이를 이용한 발효 조성물 생산 방법 | |
| JP2001025368A (ja) | 発酵処理液を基礎とする飼料用サプリメント、その製造方法および飼料用サプリメントとしてのl−リシンおよび/またはその塩の使用 | |
| WO2022124671A1 (ko) | 쉬와넬라 오네이덴시스 유래 단백질을 발현하는 미생물, 및 이를 이용한 l-아미노산 생산 방법 | |
| WO2024205290A1 (ko) | 미생물 발효를 활용한 l-발린 제조 공정 | |
| WO2025005696A1 (ko) | Ph 조절 및 pva 첨가를 이용한 l-발린 결정 및/또는 과립의 제조방법 | |
| JPH0441982B2 (ko) | ||
| WO2024205291A1 (ko) | 미생물 발효를 활용한 o-아세틸 호모세린 제조 공정 | |
| KR20250001453A (ko) | pH 조절을 이용한 L-발린 결정 및/또는 과립 제조 방법 | |
| WO2024005499A1 (ko) | 2'-푸코실락토오스 제조방법 | |
| SK3262003A3 (en) | Animal feed supplement containing D-pantothenic acid and/or its salts, improved method for the production thereof, and its use | |
| EP3119874A1 (en) | Microorganisms having enhanced l-amino acids productivity and process for producing l-amino acids using the same | |
| KR102922207B1 (ko) | 고순도의 d-판토텐산 염을 높은 수율로 얻는 방법 | |
| KR102700543B1 (ko) | 다이소듐-5'-구아닐레이트 결정 제조 방법 | |
| KR102692455B1 (ko) | 리보플라빈 결정화 공정 및 장치 | |
| WO2022124670A1 (ko) | 쉬와넬라 아틀란티카 유래 단백질을 발현하는 미생물, 및 이를 이용한 l-아미노산 생산 방법 | |
| EP4226996A1 (en) | Method for producing amino acid-mixed solids and apparatus for producing amino acid-mixed solids | |
| EP0081107B1 (en) | Process for producing l-tryptophan by fermentation | |
| WO2016148488A1 (ko) | 사료 첨가제용 조성물 및 이를 포함하는 동물 사료 조성물 | |
| WO2024215042A1 (ko) | 코어-쉘 구조의 라이신 과립 | |
| WO2025165121A1 (ko) | 다이소듐-5'-구아닐레이트 결정 제조 방법 | |
| WO2023239145A1 (ko) | 리보플라빈 생산능이 향상된 코리네박테리움 속 미생물 및 이를 이용한 리보플라빈을 생산하는 방법 | |
| WO2024167283A1 (ko) | 입도가 조절된 l-시스테인 염산염 수화물 결정의 제조 방법 |
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: 24832466 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024832466 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2025574149 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112025028482 Country of ref document: BR |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832466 Country of ref document: EP Effective date: 20251211 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024832466 Country of ref document: EP |