WO2011024422A1 - 微生物醗酵生産物の製造方法 - Google Patents
微生物醗酵生産物の製造方法 Download PDFInfo
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- WO2011024422A1 WO2011024422A1 PCT/JP2010/005153 JP2010005153W WO2011024422A1 WO 2011024422 A1 WO2011024422 A1 WO 2011024422A1 JP 2010005153 W JP2010005153 W JP 2010005153W WO 2011024422 A1 WO2011024422 A1 WO 2011024422A1
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- diol
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- AIALTZSQORJYNJ-BHUMPYGKSA-N CC(C)(CCC1)C(CC2)[C@@]1(C)[C@@H](CCO)[C@]2(C)O Chemical compound CC(C)(CCC1)C(CC2)[C@@]1(C)[C@@H](CCO)[C@]2(C)O AIALTZSQORJYNJ-BHUMPYGKSA-N 0.000 description 1
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- 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
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/22—Preparation of oxygen-containing organic compounds containing a hydroxy group aromatic
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- 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
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
Definitions
- the present invention relates to 1- (2-hydroxyethyl) -2,5,5,8a-tetra, which is useful as an intermediate for the production of 3a, 6,6,9a-tetramethyldodecahydronaphtho [2,1-b] furan.
- the present invention relates to a process for producing methyldecahydronaphthalen-2-ol.
- Compound A 6,6,9a-Tetramethyldodecahydronaphtho [2,1-b] furan
- Compound A is contained in the pathological secretion amber grease produced in the body of the perfumed whale It is an aroma component and an important compound indispensable as an amber fragrance.
- Compound A is mainly produced by a chemical synthesis method using sclareol extracted from Clary sage (Salvia sclarea L.) as a starting material.
- Intermediates of Compound A include 3a, 6,6,9a-tetramethyldecahydronaphtho [2,1-b] furan-2 (1H) -one (hereinafter referred to as “sclareolide”) and 1- ( 2-Hydroxyethyl) -2,5,5,8a-tetramethyldecahydronaphthalen-2-ol (hereinafter referred to as “diol form”) is known.
- the chemical synthesis method has a problem that the environmental load is large and the yield and purity cannot be sufficiently secured.
- Patent Documents 1 and 2 a method has been reported in which an intermediate of compound A is obtained from sclareol by microbial conversion, and this is cyclized to produce compound A (for example, Patent Documents 1 and 2).
- the separation and purification of the diol obtained by microbial conversion is performed by subjecting the culture solution to solvent extraction with ethyl acetate and then drying the resulting extract in warm hexane / ethyl acetate or hexane / chloroform. And is crystallized from the solution.
- the culture solution obtained by microbial conversion from sclareol unreacted sclareol, sclareolide, microorganisms, medium components, etc.
- the present invention has the following formula (1a) and / or (1b)
- the diol crystallized product obtained by the solvent extraction method using ethyl acetate was not only low in purity of the diol but also yellowish and had a strong off-flavor.
- the culture odor derived from microorganisms is strong and a diol body is obtained by crystallization, further purification for reducing the off-flavor and improving the hue is necessary, and the production process becomes very complicated.
- the strong culture odor derived from microorganisms remains in the obtained diol body, which is a big problem considering that the diol body becomes a perfume raw material.
- the method of separating bacterial cells with a filter, and dissolving and filtering in ethanol requires filtration twice, so that the manufacturing process is complicated.
- the present invention relates to a method capable of efficiently producing a diol having a good hue and a low off-flavor strength with fewer steps.
- the present inventors have found that the culture obtained by microbial conversion is a solvent having an SP value in the range of 7.5 to 9.0 [(cal / cm 3 ) 1/2 ]. It has been found that when mixed with diol, impurities derived from microorganisms are not extracted, so that a diol body having a good hue and having reduced off-flavors, particularly reduced culture odor, can be recovered.
- the diol can be recovered from the culture in a single separation step with a high yield because the diol can be dissolved in the solvent and extracted directly.
- the compound represented by the formula (1a) and / or (1b) is used as a substrate to produce a compound A intermediate diol, which is produced outside the cell.
- the microorganism is not particularly limited as long as it has the ability, but examples include microorganisms belonging to the genus Ascomycetes, microorganisms belonging to the genus Cryptococcus, microorganisms belonging to the class of basidiomycetes, microorganisms belonging to the genus Hyphozyma, and the like. It is done.
- microorganisms belonging to the Ascomycetes class are preferred.
- microorganisms belonging to the Ascomycetes class include Ascomycete sp. It was named KSM-JL2842, and was deposited on January 12, 2006 as FERM P-20759 at the National Institute of Advanced Industrial Science and Technology, Biological Depositary Center (address: 1-1-1 Higashi 1-1-1, Tsukuba, Ibaraki).
- Microorganisms examples include ATCC 20624 strain described in Japanese Patent No. 2547713.
- Microorganisms that can be used for microbial conversion can be isolated from soil using the ability to form a diol, which is an intermediate of Compound A, as an index.
- the ability to produce a diol compound that is a compound A intermediate is a compound A intermediate contained in the medium by culturing a test microorganism in a compound-containing medium represented by the formula (1a) and / or (1b). It can evaluate by detecting a diol body.
- gas chromatography gas-liquid chromatography (GLC), thin layer chromatography (TLC), high performance liquid chromatography (HPLC), infrared spectrum (IR)
- NMR nuclear magnetic resonance
- the culture conditions at the time of microbial conversion are not particularly limited, and any medium can be used as long as it contains the compound represented by the formula (1a) and / or (1b) and is capable of growing the microorganism.
- Examples of usable media include carbon sources such as monosaccharides, disaccharides, oligosaccharides, polysaccharides, and organic acid salts; nitrogen sources such as inorganic and organic ammonium salts, nitrogen-containing organic substances, and amino acids; sodium chloride, ferrous sulfate, Examples thereof include solid media and liquid media containing metal minerals such as magnesium sulfate, manganese sulfate, zinc sulfate, and calcium carbonate, vitamins, and the like. Moreover, you may add surfactant and an antifoamer according to culture
- the optimum pH range and the optimum temperature are not particularly limited.
- the pH is 3 to 8, preferably pH 4 to 8, more preferably pH 5 to 7, and the liquid temperature is 10 to 35 ° C., preferably 15 to 30. ° C, more preferably 20-30 ° C.
- the number of culture days is not particularly limited, and is, for example, 1 to 10 days from the addition of the substrate.
- aeration culture, agitation culture, anaerobic culture, stationary culture, and culture using a fermentation layer culture can be carried out by resting cell reaction and immobilized cell reaction.
- the concentration of the compound represented by the formula (1a) and / or (1b) added to the medium as a substrate is 0.1 to 50 mass in the medium from the viewpoint of the production efficiency of the diol compound that is the intermediate of Compound A. % (Hereinafter simply referred to as “%”).
- the substrate may be added to the medium prior to culturing or may be added during the culturing.
- microorganisms used for microbial conversion are mixed, but in the present invention, these microorganisms remain contained. Use cultures.
- the culture may contain impurities such as unreacted sclareol, sclareolide, and medium components.
- the culture containing microorganisms is mixed with a solvent having an SP value in the range of 7.5 to 9.0 [(cal / cm 3 ) 1/2 ] (hereinafter abbreviated as a unit).
- a solvent having an SP value in the range of 7.5 to 9.0 [(cal / cm 3 ) 1/2 ] (hereinafter abbreviated as a unit).
- physical treatment such as crushing and crushing the microorganism, surfactant It is desirable not to perform chemical treatment such as treatment or biochemical treatment such as lytic enzyme.
- the culture containing microorganisms before mixing the culture containing microorganisms with a solvent having an SP value in the range of 7.5 to 9.0.
- a part of water such as medium components in the culture by centrifugation or the like in advance.
- a general centrifugal separator such as a separation plate type, a cylindrical type, or a decanter type can be used, and any of a batch type and a continuous type can be used.
- the temperature is preferably 5 to 60 ° C.
- the centrifugal force can be appropriately set depending on the solid content in the culture, but is preferably 500 to 20000 G, more preferably 1000 to 10000 G.
- the treatment time can be appropriately set depending on the acceleration, but is preferably 1 to 60 minutes, and more preferably 2 to 30 minutes.
- the number of rotations used for centrifugation is preferably 2000 to 12000 r / min, more preferably 3000 to 12000 r / min, and particularly preferably 7000 to 12000 r / min.
- the moisture in the culture after removing a part of the moisture (hereinafter also referred to as “precipitate”) is preferably 80% by mass or less, more preferably 70% by mass or less, and further preferably 60% by mass or less.
- Solvents with a SP value in the range of 7.5 to 9.0 that are mixed with the culture containing microorganisms include, for example, cyclohexane (SP value 8.2), 4-methyl-2-pentanone (SP value). 8.4), xylene (SP value 8.8), toluene (SP value 8.9) and the like. These can be used alone or in combination of two or more.
- a solvent outside the SP value range of 7.5 to 9.0 is appropriately combined so that the SP value of the solvent after mixing is within the above range, and the SP value is adjusted within the above range. It may be used.
- a solvent having an SP value in the range of 7.5 to 9.0 the extraction time of the diol can be shortened and the amount of the solvent used during the extraction can be reduced, so that the working efficiency is improved.
- the SP value indicates a solubility parameter.
- SP value basics / application and calculation method (Information Organization, 2005), Polymer handbook Third edition (A Wiley-Interscience publication, 1989), etc. are listed.
- solvents whose specific SP values are not described in the above-mentioned documents see, for example, “SP Value Basics / Applications and Calculation Methods” or Polymer Engineering and Science, Vol. 14, no. 2, 147-154 (1974) and the like, the SP value can be obtained using the Fedors method.
- the volume average value of SP values of each solvent is calculated.
- the solvent it is preferable to use a solvent having an SP value of 8.0 to 9.0 from the viewpoint of improving the recovery rate (yield) and purity of the diol, and improving the odor and hue. Preference is given to solvents having an SP value of 8.2 to 9.0, in particular an SP value of 8.5 to 9.0, in particular an SP value of 8.5 to 8.9.
- the amount of the solvent used is preferably set as appropriate depending on the solvent used, but the solubility of the diol body, the odor and hue of the diol body to be produced, and the recovery of the diol body From the viewpoint of rate (yield), it is preferably 10 to 1000 mL, more preferably 10 to 100 mL, with respect to 100 mL of the culture solution.
- the amount is preferably 1 to 1000 mL, and more preferably 10 to 100 mL, with respect to 1 g of the diol compound present in the culture medium.
- the temperature of the mixed solution when the culture and the solvent are mixed is preferably 0 to 80 ° C., more preferably 20 to 65 ° C.
- the mixing time at this time is preferably 1 to 120 minutes, preferably 5 to 60 minutes, from the viewpoint of the solubility of the diol body and the odor and hue of the produced diol body. It is more preferable.
- the mixed solution is separated into a solvent phase and an aqueous phase, and the aqueous phase is removed.
- the water phase contains microorganisms, microorganism-derived impurities, and the like, which can remove impurities and the like. Moreover, culture odor can also be reduced.
- means for separating the solvent phase and the aqueous phase include stationary separation and centrifugation.
- the stationary separation is preferably carried out for 10 to 60 minutes to separate the solvent phase.
- the temperature for the stationary separation is not particularly limited, but is preferably 0 to 80 ° C, more preferably 20 to 65 ° C.
- the above-mentioned conditions can be used for centrifugation, conditions can be appropriately adjusted according to the state of separation.
- the solvent phase after removing the aqueous phase may be further filtered if necessary from the viewpoint of removing suspended matters in the solvent phase.
- a general method such as suction filtration, pressure filtration, centrifugal filtration or natural filtration can be used. Of these, suction filtration is preferred.
- the size of the filtration filter used for filtration is preferably from 0.1 to 10 ⁇ m, more preferably from 0.2 to 1 ⁇ m, in view of improving the recovery rate and purity of the diol.
- the material of the filtration filter is not particularly limited as long as it has solvent resistance, and specific examples include resin such as polypropylene, polyester, and nylon, ceramic, and metal.
- the solvent phase or filtrate thus obtained can be obtained in good yield by drying and / or crystallization usually performed in the purification step. Since the diol obtained by the method of the present invention has a good hue and a reduced culture odor derived from microorganisms, the purification process for improving the hue and reducing the off-flavor can be simplified.
- the form of the diol body may be any form such as powder, solid, and liquid.
- the method is not particularly limited, but the drying temperature is preferably room temperature to 90 ° C. Moreover, you may dry under reduced pressure.
- the method is not particularly limited.
- the obtained solvent phase or filtrate is subjected to impurities removal operation such as activated carbon filtration or microfiltration, if necessary, and then cooled and concentrated.
- impurities removal operation such as activated carbon filtration or microfiltration, if necessary, and then cooled and concentrated.
- the organic solvent used for crystallization include methanol, ethanol, isopropanol, acetone, tetrahydrofuran, ethyl acetate, and acetonitrile.
- Methanol, ethanol, and isopropanol are preferable, and ethanol is particularly preferable.
- These organic solvents may be used alone or in combination of two or more. In the case of adding a poor solvent, it is preferable to use hexane or water.
- the recovery rate (yield) of the diol after drying and / or crystallization is 60% or more, more 65% or more, particularly 70% or more, and particularly 80% or more.
- the diol obtained by the method of the present invention can be dehydrated in various solvents using an acidic catalyst such as p-toluenesulfonic acid, p-toluenesulfonic acid chloride, a catalytic amount of sulfuric acid or an acidic ion exchanger. It can be converted to compound A by cyclization.
- a substrate consisting of 10% Tween 80 (registered trademark) and 20% sclareol was added so that the concentration of sclareol in the culture medium was 5%, and pH 6.0 control with 1N NaOH and 1N HCl was performed for 4 days after the addition of the substrate.
- Aeration stirring culture was performed to obtain a culture solution.
- the culture broth contained 2.4% of diol, 0.3% of sclareol, 96.5% of water, and 0.6% of other solid contents (such as bacterial cells).
- FID Fluorescence Detector
- the inlet temperature is 250 ° C.
- the injection method is split mode (split ratio 100: 1)
- the total flow is 200 mL / min
- the column The flow rate was 0.4 mL / min
- DB-WAX ⁇ 0.1 mm ⁇ 10 m
- J & W was used as the column
- the oven temperature was 250 ° C.
- the water content of the culture solution was dried for 2 hours using an electric dryer at 120 ° C. and calculated from the mass loss.
- Example 1 500 mL of toluene (SP value 8.9) is added to 500 mL of the culture solution obtained in the above [microorganism conversion], mixed for 15 minutes (liquid temperature 25 ° C.) to dissolve the diol, and then separated by standing for 30 minutes. The aqueous phase containing microorganisms was removed. Next, the solvent phase of the obtained solvent phase was distilled off at 60 to 80 ° C. under reduced pressure to precipitate a diol. Subsequently, the diol-form crystal
- Example 2 Using a cylindrical centrifuge (apparatus: HITACHI CR22GII), 500 mL of the culture solution obtained in the above [microorganism conversion] was treated at an acceleration of 3000 G for 5 minutes at 25 ° C. to obtain a precipitate. The moisture in the precipitate was 60% by mass. To 500 mL of toluene (SP value 8.9), the precipitate of the culture solution is added, mixed for 15 minutes (solution temperature 25 ° C.) to dissolve the diol, and 6000 G at 25 ° C. using the same centrifuge. The mixture was treated at an acceleration for 10 minutes to remove the aqueous phase containing microorganisms. Next, the solvent phase of the obtained solvent phase was distilled off at 60 to 80 ° C. under reduced pressure to precipitate a diol. Subsequently, the diol-form crystal
- Example 3 125 mL of toluene (SP value 8.9) is added to 500 mL of the culture solution obtained in the above [microorganism conversion], mixed for 15 minutes (liquid temperature 60 ° C.) to dissolve the diol, and then left for 30 minutes by stationary separation. The aqueous phase containing microorganisms was removed. Next, the solvent phase of the obtained solvent phase was distilled off at 60 to 80 ° C. under reduced pressure to precipitate a diol. Subsequently, the diol-form crystal
- Example 4 Diol crystals were obtained in the same manner as in Example 2 except that toluene was replaced with 4-methyl-2-pentanone (SP value 8.4). The results are shown in Table 1.
- the diol body obtained by mixing the culture and a solvent having an SP value in the range of 7.5 to 9.0, removing the aqueous phase and then distilling the solvent,
- the SP value of the solvent was out of the range of the present invention, it was yellowish and the culture odor was strong.
- the hue was further improved, the culture odor was reduced, and the yield of the diol was also improved.
- the recovery rate (yield) of the diol was as high as 70% or more, which was a sufficient efficiency as a production method.
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Abstract
Description
しかしながら、上記化学合成法では環境負荷が大きく、また収率、純度を十分に確保できないという問題があった。
特許文献1及び2において、微生物変換により得られたジオール体の分離・精製は、培養液を酢酸エチルにより溶剤抽出した後、乾燥して得られた抽出物を温ヘキサン/酢酸エチル又はヘキサン/クロロホルムに溶解し、溶解液から結晶化することにより行っている。
しかし、スクラレオールから微生物変換により得られる培養液中には、ジオール体の他に未反応のスクラレオールやスクラレオリド、微生物、培地成分等が混在しているため、酢酸エチルを用いた溶剤抽出法ではジオール体のみの分離・精製は非常に困難であった。
そのため、培養液を特定範囲の目開きのフィルターを用いて濾過することにより菌体を分離後、フィルター上の残渣をエタノールに溶解して再度濾過等する方法により、ジオール体を高純度で回収する方法が報告されている(特許文献3)。
一方、菌体をフィルターで分離後、エタノールに溶解して濾過する方法は、2度の濾過を必要とすることからやはり製造工程が煩雑である。
遠心分離は、分離板型、円筒型、デカンター型等の一般的な遠心分離機を用いることができ、バッチ式、連続式のいずれを用いることもできる。遠心分離の条件としては、温度は5~60℃であるのが好ましい。遠心力は培養物中の固形分量により適宜設定できるが、500~20000Gが好ましく、1000~10000Gがより好ましい。処理時間は、加速度により適宜設定できるが、1~60分が好ましく、2~30分がより好ましい。遠心分離に用いられる回転数は、例えば円筒型の場合、2000~12000r/min、更に3000~12000r/min、特に7000~12000r/minが好ましい。
水分を一部除去した後の培養物(以下、「沈殿物」ともいう)中の水分は80質量%以下が好ましく、70質量%以下がより好ましく、60質量%以下がさらに好ましい。
また、混合後の溶剤のSP値が前記範囲となるように、SP値7.5~9.0の範囲外にある溶剤をも適宜組み合わせて、SP値が前記範囲となるように調製して用いてもよい。SP値7.5~9.0の範囲内にある溶剤を用いることで、ジオール体の抽出時間を短縮化できると共に抽出時の溶剤の使用量を低減できるので、作業効率も向上する。
静置分離は、10~60分行い、溶剤相を分取することが好ましい。静置分離の温度は特に規定されないが、0~80℃であることが好ましく、20~65℃であることがより好ましい。
また、遠心分離は、前述の条件を用いることができるが、分離の状態により適宜条件を調整することができる。
精製工程で晶析を行う場合、その方法は特に制限されないが、例えば、前記得られた溶剤相又は濾過液を、必要により活性炭濾過や精密濾過等の不純物除去操作を行った後、冷却、濃縮、貧溶媒の添加等により、ジオール体の結晶を析出させる方法がある。晶析に用いられる有機溶剤としては、例えばメタノール、エタノール、イソプロパノール、アセトン、テトラヒドロフラン、酢酸エチル、アセトニトリル等が挙げられ、メタノール、エタノール、イソプロパノールが好ましく、特にエタノールが好ましい。これら有機溶剤は単独で用いてもよく、2種以上を混合して用いてもよい。
貧溶媒の添加による場合は、ヘキサンや水を用いることが好ましい。
更に、本発明の方法により得られるジオール体は、酸性触媒、例えばp-トルエンスルホン酸、p-トルエンスルホン酸クロリド、触媒量の硫酸又は酸性イオン交換体等を用いて、種々の溶媒中で脱水環化により化合物Aに変換することができる。
Ascomycete sp.KSM-JL2842(FERM P-20759)株を2.1%YMブロスに1白金耳植菌し、25℃にて3日間振盪培養したものを種菌とした。次いで、種菌を2.1%YMブロス、0.1%硫酸マグネシウムからなる培地に0.3%植菌し、30L培養槽にて液温24℃、空気通気量0.5vvm、攪拌速度200r/minにて3日通気撹拌培養を行った。その後、10%Tween80(登録商標)、20%スクラレオールからなる基質を、培養液中のスクラレオール濃度が5%になるように添加し、基質添加から4日間1N NaOHおよび1N HClによるpH6.0制御の通気撹拌培養を行い、培養液を得た。なお、当該培養液には、ジオール体2.4%、スクラレオール0.3%、水分96.5%、その他固形分(菌体等)0.6%が含まれていた。
スクラレオール、スクラレオリド及びジオール体は、培養液から酢酸エチルにて抽出し、適宜希釈してガスクロマトグラフィー(GC)分析を行い、その含有量を測定した。GC分析装置は6890N GC System(Agilent technologies社)で行い、分析条件は以下のとおりである。検出器としてはFID(Flame Ionization Detector)(Agilent technologies社)を使用し、注入口温度を250℃とし、注入法をスプリットモード(スプリット比100:1)とし、トータルフローを200mL/分とし、カラム流速を0.4mL/分とし、カラムはDB-WAX(φ0.1mm×10m)(J&W社)を使用し、オーブン温度を250℃とした。
ジオール体の結晶のにおい評価は、パネル7名により次に示す基準に従って行い、その平均値をにおい評価値とした。
5:微生物培養液のにおいが強く残っている
4:微生物培養液のにおいがやや強く残っている
3:微生物培養液のにおいが少ない
2:微生物培養液のにおいが微少
1:微生物培養液のにおいが無い
ジオール体抽出液の色の評価は、抽出液を遠心分離(装置:HITACHI CR22GII、ローター:R9AF2、条件:7420r/min、5分)して微生物を除去した後、得られた上澄み液の波長420nmにおける吸光度(装置:SHIMADZU UV-2450)、およびGC分析によりジオール体の濃度(g/L)を測定した。次いで、吸光度をジオール体の濃度(g/L)で除して、その値が小さいほど色相良好とした。
ジオール体の結晶の色は、測色色差計ZE-2000型(日本電色工業(株))で測定し、黄色味を示す値(b値)が小さいほど色相良好とした。
上記[微生物変換]で得られた培養液500mLに、トルエン(SP値8.9)500mLを加え、15分間混合(液温25℃)してジオール体を溶解し、30分の静置分離により微生物を含む水相を除去した。次いで、得られた溶剤相を60~80℃減圧下で溶剤留去し、ジオール体を析出させた。次いで、70℃において乾燥することによりジオール体の結晶を得た。結果を表1に示す。
トルエンを酢酸エチル(SP値9.1)又はヘキサン(SP値7.3)に代えた以外は、実施例1と同様についてジオール体の結晶を得た。結果を表1に示す。
上記[微生物変換]で得られた培養液500mLを円筒型の遠心分離機(装置:HITACHI CR22GII)を用い、25℃にて3000Gの加速度で5分間処理し、沈殿物を得た。沈殿物中の水分は60質量%であった。トルエン(SP値8.9)500mLに、前記培養液の沈殿物を加え、15分間混合(液温25℃)してジオール体を溶解し、同じ遠心分離機を用い、25℃にて6000Gの加速度で10分間処理し、微生物を含む水相を除去した。次いで、得られた溶剤相を60~80℃減圧下で溶剤留去し、ジオール体を析出させた。次いで、70℃において乾燥することによりジオール体の結晶を得た。結果を表1に示す。
上記[微生物変換]で得られた培養液500mLに、トルエン(SP値8.9)125mLを加え、15分間混合(液温60℃)してジオール体を溶解し、30分の静置分離により微生物を含む水相を除去した。次いで、得られた溶剤相を60~80℃減圧下で溶剤留去し、ジオール体を析出させた。次いで、70℃において乾燥することによりジオール体の結晶を得た。結果を表1に示す。
トルエンを4-メチル-2-ペンタノン(SP値8.4)に代えた以外は、実施例2と同様についてジオール体の結晶を得た。結果を表1に示す。
Claims (4)
- 前記溶剤のSP値が8.0~9.0〔(cal/cm3)1/2〕の範囲内である、請求項1記載の製造方法。
- 前記溶剤が、シクロヘキサン、4-メチル-2-ペンタノン、キシレン及びトルエンから選ばれる1種又は2種以上である請求項1又は2記載の製造方法。
- 微生物が含まれたままの培養物と前記溶剤とを混合する前に、培養物中の水分を80質量%以下に低減する工程を有する、請求項1~3のいずれか1項に記載の製造方法。
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CN2010800380674A CN102639704A (zh) | 2009-08-25 | 2010-08-20 | 微生物发酵产物的制造方法 |
EP10811481.0A EP2471939B1 (en) | 2009-08-25 | 2010-08-20 | Method for producing 1-(2-hydroxyethyl) 2,5,5,8a-tetramethyldecahydronaphthalene-2-ol by microbial fermentation |
ES10811481T ES2833974T3 (es) | 2009-08-25 | 2010-08-20 | Método de producción de 1-(2-hidroxietil)-2,5,5,8a-tetrametildecahidronaftalen-2-ol mediante fermentación microbiana |
US13/389,422 US8822186B2 (en) | 2009-08-25 | 2010-08-20 | Method for producing microbial fermentation product |
IL217716A IL217716A (en) | 2009-08-25 | 2012-01-24 | Method for Manufacturing 1 - (2-Hydroxyethyl) -2, 5, 5, 8a - Tetramethyldecahydronaphthalene-2-ol |
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US20120135484A1 (en) | 2012-05-31 |
JP5610728B2 (ja) | 2014-10-22 |
IL217716A0 (en) | 2012-03-29 |
CN102639704A (zh) | 2012-08-15 |
ES2833974T3 (es) | 2021-06-16 |
EP2471939A1 (en) | 2012-07-04 |
IL217716A (en) | 2015-08-31 |
JP2011045250A (ja) | 2011-03-10 |
EP2471939B1 (en) | 2020-11-04 |
US8822186B2 (en) | 2014-09-02 |
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