WO2025005696A1 - Ph 조절 및 pva 첨가를 이용한 l-발린 결정 및/또는 과립의 제조방법 - Google Patents
Ph 조절 및 pva 첨가를 이용한 l-발린 결정 및/또는 과립의 제조방법 Download PDFInfo
- Publication number
- WO2025005696A1 WO2025005696A1 PCT/KR2024/009022 KR2024009022W WO2025005696A1 WO 2025005696 A1 WO2025005696 A1 WO 2025005696A1 KR 2024009022 W KR2024009022 W KR 2024009022W WO 2025005696 A1 WO2025005696 A1 WO 2025005696A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valine
- crystals
- fermentation solution
- granules
- present application
- 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
Images
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 with 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 7,514,111 B2
- Patent Document 2 US 10,072,278 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; adding polyvinyl alcohol (PVA) to the fermentation solution; and separating valine crystals containing water from the fermentation solution.
- PVA polyvinyl alcohol
- 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; adding polyvinyl alcohol to the fermentation solution; separating valine crystals containing moisture from the fermentation solution; mixing the valine crystals with seeds to produce 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; adding polyvinyl alcohol (PVA) to the fermentation solution; and separating valine crystals containing water from the fermentation solution.
- PVA polyvinyl alcohol
- the present application provides a method for producing valine granules, including the steps of preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; adding polyvinyl alcohol to the fermentation solution; separating valine crystals containing moisture from the fermentation solution; mixing the valine crystals with seeds to produce mixed granules; and drying the valine mixed granules.
- the energy required for drying can be reduced by lowering the moisture content in valine crystals or valine mixed granules through pH adjustment of the fermentation solution containing valine and addition of PVA.
- Figure 1 is a diagram showing SEM images of valine crystals manufactured according to one embodiment of the present invention.
- (a) and (b) show valine crystals manufactured by not adding PVA or adding 2 wt% of PVA to a culture medium, respectively.
- 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 method for manufacturing valine crystals comprises the steps of preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; adding polyvinyl alcohol (PVA) to the fermentation solution; and separating valine crystals containing water from the fermentation solution. Each step will be described in detail below.
- PVA polyvinyl alcohol
- 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 above step may be a fermentation product prepared by 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 producing 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 may contain 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 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, and 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 an endogenous gene, and may be a microorganism including genetic modification for the production of an 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 strain of Corynebacterium glutamicum ATCC13032_DvalL, Corynebacterium glutamicum ATCC13032_DvalP, or Corynebacterium glutamicum ATCC13032_DvalS, and includes, without limitation, microorganisms capable of producing a fermentation solution including valine (US 10,072,278 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.
- fermentation solution containing valine in the present application may be used interchangeably with “fermentation solution containing valine” or “fermentation solution containing valine”.
- 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, 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 adding polyvinyl alcohol (PVA) to the prepared fermentation solution is performed.
- PVA polyvinyl alcohol
- the addition of the polyvinyl alcohol is intended to adjust the crystallinity of the produced L-valine crystals, and by adding the polyvinyl alcohol, L-valine crystals having uniform and excellent crystal characteristics can be produced without being affected by the concentration speed during concentration.
- the polyvinyl alcohol may be added in an amount of 0.1 wt% to 5 wt% based on the total weight of the fermentation solution. In some cases, the polyvinyl alcohol may be added in an amount of 0.3 wt% to 4 wt%, 0.5 wt% to 3 wt%, 0.5 wt% to 2.5 wt%, 1 wt% to 3 wt%, 1 wt% to 2.8 wt%, 1.5 wt% to 3 wt%, 1.5 wt% to 2.5 wt%, 1 wt% to 2.5 wt%, or 1.8 wt% to 2.3 wt%.
- L-valine crystals manufactured by concentrating a culture solution by adding PVA according to the manufacturing method of the present application may be crystals having a moisture content reduced by 8% to 40% compared to crystals manufactured according to a manufacturing method in which PVA is not added in the second step.
- a step of concentrating may be additionally included after the step of adding polyvinyl alcohol to the fermentation solution.
- the above-mentioned concentrating step is for producing L-valine crystals, and the above-mentioned concentration can be performed at a solid content of 15 to 30%, but is not limited thereto.
- 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 30 g/L/hr to 150 g/L/hr (meaning that 30 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 the 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, the moisture in the valine crystals is reduced accordingly.
- the valine crystals may be valine crystals in which moisture within the crystals has been reduced by concentration.
- 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 mother liquor remaining after the separation of valine crystals in the separation step can be used again for concentration. Accordingly, the valine that did not form crystals containing water in the concentration step or the valine that was precipitated as crystals smaller than a certain size and was not separated in the valine crystal separation step and remained in the mother liquor can be recycled.
- an additional process such as heating the fermentation liquor can be performed to re-dissolve the valine precipitated in the form of fine crystals in the fermentation liquor, if necessary.
- valine crystals According to the method for producing valine crystals according to one embodiment of the present application described above, by controlling the pH of a fermentation solution containing valine and adding an appropriate amount of PVA to the fermentation solution, valine crystals having a low moisture content and being easy to separate can be obtained.
- the valine crystals manufactured according to one embodiment of the present application may have a viscosity of greater than 0 and less than 80 cp.
- the viscosity of the valine crystals may be greater than 20 and less than 80 cp, greater than 40 and less than 80 cp, greater than 60 and less than 80 cp, greater than 0 and 70 cp, greater than 20 and 70 cp, greater than 40 and 70 cp, greater than 60 and 70 cp, greater than 0 and 50 cp, greater than 20 and 50 cp, greater than 40 and 50 cp, greater than 0 and 30 cp, greater than 20 and 30 cp or greater than 0 and 10 cp.
- the valine crystals having a viscosity in the above-described range can be easily separated from the mother liquor because they have a low moisture content and an appropriate size.
- 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
- the manufacturing method of the present application may additionally include a drying step, a sieving step, or both after the step of separating the L-valine crystals.
- a drying step e.g., US 2021-0094903 A1
- specific conditions may be appropriately changed to optimize the process, but are not limited thereto.
- the present invention provides L-valine crystals comprising polyvinyl alcohol and L-valine, wherein the moisture content in the separated crystals is reduced by 5 to 40% compared to L-valine crystals manufactured without using polyvinyl alcohol during concentration.
- the L-valine crystal may have a spherical particle shape.
- the L-valine crystal of the present application may be manufactured by the method described above. Furthermore, the L-valine crystal of the present application may be used as a feed or feed additive, but its use is not limited thereto.
- a method for manufacturing valine granules comprises the steps of: preparing a fermentation solution containing valine; adjusting the pH of the fermentation solution; adding polyvinyl alcohol to the fermentation solution; separating valine crystals containing water from the fermentation solution; mixing the valine crystals with seeds to manufacture mixed granules; and drying the valine mixed granules.
- the steps of preparing a fermentation solution, adjusting the pH of the fermentation solution, adding polyvinyl alcohol to the fermentation solution, and separating valine crystals can be performed in the same manner as in the valine crystal manufacturing method 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 mixing granulator can be used in the mixed granule manufacturing step.
- the mixing granulator can obtain granules by injecting seeds into the mixing granulator through a feeder at a constant rate while simultaneously supplying valine crystals obtained in the previous separation step.
- the mixing 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 mixing granulator.
- the seeds and valine crystals introduced into the chamber can clump together to form valine mixed granules.
- a valine mixed granule having a low moisture content and a large crystal size can be manufactured by mixing valine crystals including seeds and moisture.
- 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 seeds are granulated in a mixing 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 valine 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 ballin mixed granules.
- the previously obtained valerian mixed granules are dried, and there is no limitation on the drying method.
- the present application can provide a valine product including a valine mixed granule.
- valine product of the present application means a product in which valine included in a fermentation solution is manufactured into various formulations.
- the valine product can mean a valine-containing mixture in the form of granules.
- the formulation of the valine product can be changed as long as it does not change the invention of the present application.
- a subsequent process can be further performed to implement various formulations of the valine product.
- the valine product described above can be used as an additive for animal feed, etc., and there is no limitation on the use.
- a fermentation solution containing valine can be concentrated to separate valine crystals, and the separated valine crystals can be mixed with seeds 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 or controlling the concentration speed.
- the L-valine crystals or granules of the present application may be suitable for use in the manufacture of animal feed as a feed additive.
- the L-valine crystals as the feed additive may be mixed with a feed material as a part of an animal feed premix or as a precursor of an animal feed.
- the feed composition comprising the L-valine crystals or granules may be administered to an animal alone or in combination with other feed additives in an edible carrier.
- the feed composition may be easily administered to an animal as a top dressing or by mixing them directly into an animal feed or in an oral formulation separate from the feed.
- 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 1 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 showed that the moisture content in the valine crystals was the lowest 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 significantly 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 concentrated slurry viscosity was high, it was analyzed that many fine valine crystals were formed and the slurry viscosity was high.
- 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, resulting in a low viscosity of the concentrated slurry and low moisture content in the separated crystals.
- the L-valine culture medium to which sulfuric acid was added to adjust the pH to 3.8 was prepared by adding 2 wt% (based on the weight of L-valine) of polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), and monosodium glutamate (MSG) to the fermentation medium prepared in Experimental Example 1.
- PVA polyvinyl alcohol
- PVP polyvinylpyrrolidone
- MSG monosodium glutamate
- the morphology of the crystals formed in the 2 wt% PVA sample and the non-injected control group was observed using SEM ( ⁇ 30 magnification, JEOL, JCM-6000PLUS).
- SEM ⁇ 30 magnification, JEOL, JCM-6000PLUS.
- the non-injected PVA control group formed plate-shaped, fine-particle crystals
- the 2 wt% PVA injection group formed larger, spherical particles (Fig. 1).
- 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%) 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 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
| 조성 | 함량(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(wt%) | 45 | 40 | 32 | 30 | 39 |
| 첨가제 | 발린 결정 내 수분함량(wt%) |
| 무첨가(대조군) | 58.21 |
| PVA | 40.12 |
| PVP | 57.89 |
| MSG | 59.34 |
| PVA 첨가량(wt%) | 0 | 0.5 | 1.5 | 2.0 | 2.5 |
| 결정 내 수분함량(wt%) | 58.21 | 53.07 | 47.23 | 38.02 | 48.23 |
| 혼합수분(%) | 15.0 | 24.0 | 30.0 | 35.0 | 47.0 | |
| 설비 | Type | CVG Mixer | ||||
| rpm | 2000 | |||||
| 혼합 과립유무 | ○ | ○ | ○ | ○ | ○ | |
Claims (10)
- 발린을 포함하는 발효액을 준비하는 단계;상기 발효액의 pH를 조절하는 단계;상기 발효액에 폴리비닐알콜(polyvinyl alcohol; PVA)을 첨가하는 단계; 및상기 발효액에서 수분을 포함하는 발린 결정을 분리하는 단계를 포함하는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발효액의 pH를 조절하는 단계에서 상기 발효액의 pH는 3 초과 내지 6 미만으로 조절되는, 발린 결정 제조방법.
- 제1항에 있어서,상기 폴리비닐알콜은 발효액 총 중량에 대하여 0.1wt% 이상 5wt%로 첨가하는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발효액에 폴리비닐알콜을 첨가하는 단계 이후 발효액을 농축하는 단계를 추가로 포함하는, 발린 결정 제조방법.
- 제4항에 있어서,상기 농축은 발효액 내 수분을 30 g/L/hr 내지 150 g/L/hr의 속도로 제거하여 수행되는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발린 결정은 점도가 0 초과 80 cP 미만인, 발린 결정 제조방법.
- 제6항에 있어서,상기 발린 결정은 10wt% 내지 55wt%의 수분을 포함하는, 발린 결정 제조방법.
- 제1항에 있어서,상기 발린 결정은 구형의 입자 형태를 갖는, 발린 결정 제조방법.
- 발린을 포함하는 발효액을 준비하는 단계;상기 발효액의 pH를 조절하는 단계;상기 발효액에 폴리비닐알콜을 첨가하는 단계;상기 발효액에서 수분을 포함하는 발린 결정을 분리하는 단계;상기 발린 결정을 시드와 혼합하여 혼합과립을 제조하는 단계; 및상기 발린 혼합과립을 건조하는 단계를 포함하는, 발린 과립 제조방법.
- 제9항에 있어서,상기 발효액에 폴리비닐알콜을 첨가하는 단계 이후 발효액을 농축하는 단계를 추가로 포함하는, 발린 과립 제조방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24832473.3A EP4729624A1 (en) | 2023-06-28 | 2024-06-27 | Method for preparing l-valine crystals and/or granules using ph adjustment and pva addition |
| CN202480054599.9A CN121752730A (zh) | 2023-06-28 | 2024-06-27 | 使用ph调节和pva添加制备l-缬氨酸晶体和/或颗粒的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020230083411A KR20250001187A (ko) | 2023-06-28 | 2023-06-28 | pH 조절 및 PVA 첨가를 이용한 L-발린 결정 및/또는 과립의 제조방법 |
| KR10-2023-0083411 | 2023-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025005696A1 true WO2025005696A1 (ko) | 2025-01-02 |
Family
ID=93939348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2024/009022 Ceased WO2025005696A1 (ko) | 2023-06-28 | 2024-06-27 | Ph 조절 및 pva 첨가를 이용한 l-발린 결정 및/또는 과립의 제조방법 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4729624A1 (ko) |
| KR (1) | KR20250001187A (ko) |
| CN (1) | CN121752730A (ko) |
| WO (1) | WO2025005696A1 (ko) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000028898A (ko) * | 1998-10-10 | 2000-05-25 | 데구사-휠스 악티엔게젤샤프트 | 유동성 메티오닌-함유 성형체 및 이의 제조 방법 |
| 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 |
| KR20090106543A (ko) * | 2006-12-23 | 2009-10-09 | 에보니크 데구사 게엠베하 | 발효에 의해 생성되는 화합물을 상이한 농도로 함유하는 생성물을 수득하는 방법 |
| US20140228593A1 (en) * | 2011-09-12 | 2014-08-14 | Kyowa Hakko Bio Co., Ltd. | Process for producing amino acid |
| KR20160057462A (ko) * | 2013-09-17 | 2016-05-23 | 에보닉 데구사 게엠베하 | 아미노산 용액 및 현탁물로부터 매우 개선된 특성을 갖는 과립의 제조 방법 |
| KR20160075672A (ko) * | 2013-10-24 | 2016-06-29 | 에보닉 데구사 게엠베하 | L-아미노산-함유 사료 첨가제 |
| 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 |
| US20210094903A1 (en) | 2018-03-23 | 2021-04-01 | Cj Cheiljedang Corporation | Granules comprising l-amino acid and method for preparing the same |
-
2023
- 2023-06-28 KR KR1020230083411A patent/KR20250001187A/ko active Pending
-
2024
- 2024-06-27 CN CN202480054599.9A patent/CN121752730A/zh active Pending
- 2024-06-27 EP EP24832473.3A patent/EP4729624A1/en active Pending
- 2024-06-27 WO PCT/KR2024/009022 patent/WO2025005696A1/ko not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000028898A (ko) * | 1998-10-10 | 2000-05-25 | 데구사-휠스 악티엔게젤샤프트 | 유동성 메티오닌-함유 성형체 및 이의 제조 방법 |
| 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 |
| KR20090106543A (ko) * | 2006-12-23 | 2009-10-09 | 에보니크 데구사 게엠베하 | 발효에 의해 생성되는 화합물을 상이한 농도로 함유하는 생성물을 수득하는 방법 |
| US20140228593A1 (en) * | 2011-09-12 | 2014-08-14 | Kyowa Hakko Bio Co., Ltd. | Process for producing amino acid |
| 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 |
| KR20160057462A (ko) * | 2013-09-17 | 2016-05-23 | 에보닉 데구사 게엠베하 | 아미노산 용액 및 현탁물로부터 매우 개선된 특성을 갖는 과립의 제조 방법 |
| KR20160075672A (ko) * | 2013-10-24 | 2016-06-29 | 에보닉 데구사 게엠베하 | L-아미노산-함유 사료 첨가제 |
| US20210094903A1 (en) | 2018-03-23 | 2021-04-01 | Cj Cheiljedang Corporation | Granules comprising l-amino acid and method for preparing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4729624A1 (en) | 2026-04-22 |
| KR20250001187A (ko) | 2025-01-06 |
| CN121752730A (zh) | 2026-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019190193A1 (ko) | 글라이신 생산능이 증가된 미생물 및 이를 이용한 발효 조성물 생산 방법 | |
| WO2024205290A1 (ko) | 미생물 발효를 활용한 l-발린 제조 공정 | |
| WO2025005689A1 (ko) | Ph 조절을 이용한 l-발린 결정 및/또는 과립 제조 방법 | |
| EP3119875A1 (en) | Microorganisms producing l-amino acids and process for producing l-amino acids using the same | |
| WO2024005499A1 (ko) | 2'-푸코실락토오스 제조방법 | |
| WO2025143590A1 (ko) | 아미노산을 포함하는 허비시딘 생산용 배지 조성물 | |
| CN101688225A (zh) | 获得包含不同浓度的通过发酵获得的化合物的产品的方法 | |
| KR20250001187A (ko) | pH 조절 및 PVA 첨가를 이용한 L-발린 결정 및/또는 과립의 제조방법 | |
| WO2024205291A1 (ko) | 미생물 발효를 활용한 o-아세틸 호모세린 제조 공정 | |
| EP3119874A1 (en) | Microorganisms having enhanced l-amino acids productivity and process for producing l-amino acids using the same | |
| WO2024215042A1 (ko) | 코어-쉘 구조의 라이신 과립 | |
| KR100614219B1 (ko) | 대두박 산분해물을 사용한 l-라이신 발효 | |
| WO2024155127A1 (ko) | 고순도의 d-판토텐산 염을 높은 수율로 얻는 방법 | |
| WO2016148488A1 (ko) | 사료 첨가제용 조성물 및 이를 포함하는 동물 사료 조성물 | |
| EP0081107B1 (en) | Process for producing l-tryptophan by fermentation | |
| KR102700543B1 (ko) | 다이소듐-5'-구아닐레이트 결정 제조 방법 | |
| WO2025165121A1 (ko) | 다이소듐-5'-구아닐레이트 결정 제조 방법 | |
| KR102692455B1 (ko) | 리보플라빈 결정화 공정 및 장치 | |
| WO2021182742A1 (ko) | 과립형 사료 첨가제의 제조 방법 | |
| WO2023239145A1 (ko) | 리보플라빈 생산능이 향상된 코리네박테리움 속 미생물 및 이를 이용한 리보플라빈을 생산하는 방법 | |
| WO2025053599A1 (ko) | 고순도 아르기닌의 제조방법 | |
| WO2023121423A1 (ko) | 발효액으로부터 아미노산 함유 제품의 제조 방법 | |
| WO2025159529A1 (ko) | 폴리에스테르의 생물학적 분해 공정 및 이를 통해 생성된 산물의 용도 | |
| WO2024167283A1 (ko) | 입도가 조절된 l-시스테인 염산염 수화물 결정의 제조 방법 | |
| WO2025159353A1 (ko) | L-시트룰린 또는 l-아르기닌 생산능이 향상된 변이 미생물 및 이를 이용한 l-시트룰린 또는 l-아르기닌의 생산 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: 24832473 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2025575974 Country of ref document: JP Kind code of ref document: A |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112025029076 Country of ref document: BR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024832473 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2024832473 Country of ref document: EP Effective date: 20260114 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024832473 Country of ref document: EP Effective date: 20260114 |
|
| ENP | Entry into the national phase |
Ref document number: 2024832473 Country of ref document: EP Effective date: 20260114 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024832473 Country of ref document: EP |