WO1993011656A1 - PROCEDE POUR L'OBTENTION D'ACIDE POLY-β-HYDROXY-OCTANOIQUE - Google Patents
PROCEDE POUR L'OBTENTION D'ACIDE POLY-β-HYDROXY-OCTANOIQUE Download PDFInfo
- Publication number
- WO1993011656A1 WO1993011656A1 PCT/EP1992/002608 EP9202608W WO9311656A1 WO 1993011656 A1 WO1993011656 A1 WO 1993011656A1 EP 9202608 W EP9202608 W EP 9202608W WO 9311656 A1 WO9311656 A1 WO 9311656A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- biomass
- acetone
- hydroxy
- separated
- acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- NDPLAKGOSZHTPH-ZETCQYMHSA-N (S)-3-hydroxyoctanoic acid Chemical compound CCCCC[C@H](O)CC(O)=O NDPLAKGOSZHTPH-ZETCQYMHSA-N 0.000 title claims abstract description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002028 Biomass Substances 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims abstract description 18
- 241000894006 Bacteria Species 0.000 claims abstract description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 12
- 238000010790 dilution Methods 0.000 claims abstract description 9
- 239000012895 dilution Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 235000015097 nutrients Nutrition 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 239000001963 growth medium Substances 0.000 claims abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- 238000000855 fermentation Methods 0.000 claims description 12
- 230000004151 fermentation Effects 0.000 claims description 12
- HXVNBWAKAOHACI-UHFFFAOYSA-N 2,4-dimethyl-3-pentanone Chemical compound CC(C)C(=O)C(C)C HXVNBWAKAOHACI-UHFFFAOYSA-N 0.000 claims description 10
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 230000000050 nutritive effect Effects 0.000 claims description 9
- 239000002609 medium Substances 0.000 claims description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 claims description 5
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 5
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 5
- 241000589516 Pseudomonas Species 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 5
- 229940090181 propyl acetate Drugs 0.000 claims description 5
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 5
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 4
- 241000589774 Pseudomonas sp. Species 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 4
- 241000589781 Pseudomonas oleovorans Species 0.000 claims description 3
- -1 acetate ethyl Chemical compound 0.000 claims description 2
- 238000010564 aerobic fermentation Methods 0.000 claims description 2
- 238000007605 air drying Methods 0.000 claims description 2
- 230000001580 bacterial effect Effects 0.000 claims 1
- 239000000706 filtrate Substances 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 description 11
- 239000002904 solvent Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 230000001086 cytosolic effect Effects 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 238000012792 lyophilization process Methods 0.000 description 1
- 238000006140 methanolysis reaction Methods 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
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
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/62—Carboxylic acid esters
- C12P7/625—Polyesters of hydroxy carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
Definitions
- the invention relates to the field of organic synthesis.
- it relates to a new process for obtaining poly- ⁇ -hydroxy-octanoic acid, a polymer constituted by repeating units of formula + CH (C 5 H 11 ) - CH 2 - C (0) - 0 ⁇ n
- the method of the invention is based on a method of extracting poly- ⁇ -hydroxy-octanoic acid from a culture of bacteria containing it using an organic solvent.
- Poly-hydroxy-alkanoic acids are storage compounds found in certain families of bacteria. It is in the cytoplasmic solution that these acids are deposited in the form of an aggregate when the cells are cultivated in a medium rich in carbon and in which one of the nutritive agents is growth-limiting.
- the present invention provides a new solution to this problem.
- the process of the invention consists in fact in cultivating appropriate bacteria in an adequate nutritive medium.
- the bacteria are then separated after fermentation by usual techniques, for example by centrifugation, and the wet biomass thus obtained is dispersed in acetone or isopropanol or other dehydrating solvent known in the prior art.
- the still wet biomass is stirred in the organic dispersion solvent chosen until a homogeneous suspension is obtained.
- the separation of the solid cell mass from the suspension is carried out according to the usual methods, for example by decantation, filtration or centrifugation.
- a simple filtration using a Buchner filter allows the separation of the cells from the bacteria in the form of a now dry powder. Further drying can optionally be carried out by direct exposure to air of the separated solid.
- poly- ⁇ -hydroxy-octanoic acid is completely soluble in anhydrous acetone, the presence of water, even in very small quantities, makes the polymer perfectly insoluble.
- the extraction of poly- ⁇ -hydroxy-octanoic acid takes place in non-chlorinated organic solvents defined by the following group: acetone, methyl isobutyl ketone, diisopropyl ketone, diethyl ketone, ethyl acetate, propyl acetate, butyl acetate, diethyl ether, diisopropyl ether and tetrahydrofuran.
- acetone or tetrahydrofuran is used.
- Pseudomonas in a nutritive medium in which one of the agents is growth-limiting, gives rise to the formation of poly- ⁇ -hydroxy-octanoic acid.
- Such bacteria cultures can be obtained from depositaries such as the ATCC (American Type Culture Collection, Rockville, Maryland, USA) or the DSM (Deutsche Sammlung von Mikroorganismen, Gôttingen, Germany). Specifically, in the process of the invention, bacteria of one of the following strains were used: Pseudomonas oleovorans ATCC 29347, Pseudomonas sp. DSM 1650, and Pseudomonas citronellonis DSM 50332.
- the invention therefore also relates to a process for obtaining poly- ⁇ -hydroxy-octanoic acid by aerobic fermentation of bacteria capable of accumulating said acid when cultivated in a nutrient solution rich in carbon and in which one nutritive agents is growth limiting, characterized in that the nutritive solution is added to the culture so as to maintain a dilution rate of between approximately 0.050 and 0.100 h -1 , which is then separated from the biomass of the culture medium, that the separated biomass is suspended in acetone or isopropanol or other known dehydrating solvent, that the suspension obtained is filtered and the dried solid biomass is brought into contact with an inert organic solvent chosen from the group that here: acetone, methyl isobutyl ketone, diisopropyl ketone, diethyl ketone, ethyl acetate, propyl acetate, butyl acetate, diethyl ether, diisopropyl ether and tetrahydrofura Finally, separate the
- This nutrient solution was added to the fermentation medium so as to maintain the dilution rate at a value of 0.085 h -1 .
- the cell mass After reaching a steady state, i.e. a constant concentration of biomass and a complete consumption of carbon and nitrogen, the cell mass is stored in a tank before centrifugation (30 min), washed with demineralized water and centrifuged again.
- the wet mass (51.5 g) harvested from 21 of culture was suspended in 250 ml of isopropanol and stirred at room temperature until a homogeneous suspension is obtained, then it is filtered using a B ⁇ chner type filter and 12.4 g of dry cell mass was obtained after air drying.
- This dry mass was suspended in 155 ml of acetone and stirred for 1 h at room temperature, then it was filtered.
- the clear filtrate was finally evaporated in air to provide 2.43 g of a translucent polymer film.
- the polymer content of the cell mass was determined by gas chromatography of the methyl ester of ⁇ -hydroxy-octanoic acid obtained by methanolysis of the polymer [see for example Appl. About. Microbiol. 54 (1988), 1977].
- the proportion of polymer was 20% by weight.
- a dried biomass was obtained according to the method described in the previous example.
- MW 2.11. 10 2 . [ ⁇ ] W * according to Makromolekulare Chemie 176 (1975), 2655, in which MW represents the molecular weight and [ ⁇ ] defines the intrinsic viscosity as measured at 30 ° by a digital Brookfiêld viscometer.
- the polymer was solubilized at different concentrations in cyclohexanone.
- Other tests have been carried out by suspending the dried biomass in solvents other than acetone, for example methyl isobutyl ketone, diisopropyl ketone, diethyl ketone, ethyl acetate, propyl acetate, acetate butyl, diethyl ether or even diisopropyl ether.
- a dried biomass was obtained according to the method described in Example 1.
- the nutrient solution had the following composition (proportions expressed relative to 1 l of distilled water).
- octanoic acid 15.12 g
- Example 2 The operation was carried out as indicated in Example 1, adding the nutritive solution to the fermentation medium so as to maintain the dilution rate at the value indicated in the following table. Poly- ⁇ -hydroxy-octanoic acid was thus obtained in the indicated proportions expressed as the content of the polymer in the cell mass.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5509757A JPH06505403A (ja) | 1991-11-29 | 1992-11-13 | ポリ−β−ヒドロキシオクタン酸を収得する方法 |
US08/094,198 US5422257A (en) | 1991-11-29 | 1992-11-13 | Method for obtaining poly-β-hydroxyoctanoic acid via solvent extraction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH350691 | 1991-11-29 | ||
CH3506/91-6 | 1991-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993011656A1 true WO1993011656A1 (fr) | 1993-06-10 |
Family
ID=4257458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1992/002608 WO1993011656A1 (fr) | 1991-11-29 | 1992-11-13 | PROCEDE POUR L'OBTENTION D'ACIDE POLY-β-HYDROXY-OCTANOIQUE |
Country Status (4)
Country | Link |
---|---|
US (1) | US5422257A (fr) |
EP (1) | EP0569569A1 (fr) |
JP (1) | JPH06505403A (fr) |
WO (1) | WO1993011656A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2059281A1 (es) * | 1993-04-27 | 1994-11-01 | Zunzunegui Jorge Escatllar | Muebles elevados cuya estructura vertical se fabrica con piezas planas que se unen en ejes verticales describiendo volumenes abiertos |
ES2062955A1 (es) * | 1993-04-29 | 1994-12-16 | Repsol Quimica Sa | Procedimiento para la extraccion de polihidroxialcanoatos de bacterias halofilas que lo contienen. |
WO1996000263A1 (fr) * | 1994-06-23 | 1996-01-04 | Stichting Onderzoek En Ontwikkeling Noord Nederland (Soonn) | Procede de production d'un revetement en polyhydroxyalcanoate biodegradable a l'aide d'une dispersion aqueuse de polyhydroxyalcanoate |
WO1996006179A1 (fr) * | 1994-08-18 | 1996-02-29 | Monsanto Company | Procede de recuperation d'un acide hydroxyalcanoique |
WO1997007230A1 (fr) * | 1995-08-21 | 1997-02-27 | The Procter & Gamble Company | Extraction par solvant de polyhydroxyalcanoates d'une biomasse |
WO1997008931A3 (fr) * | 1995-09-09 | 1997-04-24 | Buna Sow Leuna Olefinverb Gmbh | Agent d'extraction pour les acides de polyhydroxyalcanes |
WO1997015681A1 (fr) * | 1995-10-26 | 1997-05-01 | Metabolix, Inc. | Procedes d'extraction de polyhydroxyalkanoates a partir de vegetaux |
US5821299A (en) * | 1996-02-16 | 1998-10-13 | The Proctor & Gamble Company | Solvent extraction of polyhydroxy-alkanoates from biomass facilitated by the use of marginal nonsolvent |
EP0973930A1 (fr) | 1997-04-15 | 2000-01-26 | Monsanto Company | Extraction de pha a haute temperature au moyen de solvants pauvres en pha |
EP0975788A1 (fr) | 1997-04-15 | 2000-02-02 | Monsanto Company | Procedes d'extraction et de recuperation de pha a l'aide de solvants non halogenes |
US6368836B2 (en) | 1998-04-08 | 2002-04-09 | Metabolix, Inc. | Method of decolorizing or deodorizing polyhydroxyalkanoates from biomass with ozone |
WO2014027129A1 (fr) | 2012-08-14 | 2014-02-20 | Neol Biosolutions, S.A. | Production de bioplastiques |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PT846184E (pt) * | 1995-08-21 | 2002-09-30 | Procter & Gamble | Extraccao por solvente de polihidroxialcanoatos a partir de biomassa facilitada pela utilizacao de um nao solvente marginal para o pha |
EP2978852B1 (fr) * | 2013-03-28 | 2018-10-17 | Basf Se | Production de pyripyropènes à partir de biomasse sèche |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275610A (en) * | 1964-03-24 | 1966-09-27 | Mobil Oil Corp | Microbial synthesis of polymers |
US4140741A (en) * | 1976-01-14 | 1979-02-20 | Agroferm A.G. | Use of cyclic carbonic acid esters as solvents for poly-(β-hydroxybutyric acid) |
EP0124309A2 (fr) * | 1983-04-28 | 1984-11-07 | Imperial Chemical Industries Plc | Procédé d'extraction |
WO1990012104A1 (fr) * | 1989-04-04 | 1990-10-18 | Rijksuniversiteit Te Groningen | Production microbiologique de polyesters |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT390068B (de) * | 1988-07-07 | 1990-03-12 | Danubia Petrochemie | Extraktionsmittel fuer poly-d(-)-3-hydroxybuttersaeure |
JPH03143397A (ja) * | 1989-10-31 | 1991-06-18 | Taisei Corp | β―ヒドロキシ酪酸およびその重合体の製造方法 |
-
1992
- 1992-11-13 JP JP5509757A patent/JPH06505403A/ja active Pending
- 1992-11-13 US US08/094,198 patent/US5422257A/en not_active Expired - Fee Related
- 1992-11-13 WO PCT/EP1992/002608 patent/WO1993011656A1/fr not_active Application Discontinuation
- 1992-11-13 EP EP92923487A patent/EP0569569A1/fr not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275610A (en) * | 1964-03-24 | 1966-09-27 | Mobil Oil Corp | Microbial synthesis of polymers |
US4140741A (en) * | 1976-01-14 | 1979-02-20 | Agroferm A.G. | Use of cyclic carbonic acid esters as solvents for poly-(β-hydroxybutyric acid) |
EP0124309A2 (fr) * | 1983-04-28 | 1984-11-07 | Imperial Chemical Industries Plc | Procédé d'extraction |
WO1990012104A1 (fr) * | 1989-04-04 | 1990-10-18 | Rijksuniversiteit Te Groningen | Production microbiologique de polyesters |
Non-Patent Citations (1)
Title |
---|
CHEMICAL ABSTRACTS, vol. 114, no. 3, 21 Janvier 1991, Columbus, Ohio, US; abstract no. 20781f, HAYWOOD GEOFFREY W. ET AL. 'Accumulation of a polyhydroxyalkanoate-containing primarily 3-hydroxydecanoate from simple carbohydrate substrates by Pseudomonas sp. strain NCIMB 40135' page 391 ; * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2059281A1 (es) * | 1993-04-27 | 1994-11-01 | Zunzunegui Jorge Escatllar | Muebles elevados cuya estructura vertical se fabrica con piezas planas que se unen en ejes verticales describiendo volumenes abiertos |
ES2062955A1 (es) * | 1993-04-29 | 1994-12-16 | Repsol Quimica Sa | Procedimiento para la extraccion de polihidroxialcanoatos de bacterias halofilas que lo contienen. |
WO1996000263A1 (fr) * | 1994-06-23 | 1996-01-04 | Stichting Onderzoek En Ontwikkeling Noord Nederland (Soonn) | Procede de production d'un revetement en polyhydroxyalcanoate biodegradable a l'aide d'une dispersion aqueuse de polyhydroxyalcanoate |
NL9401037A (nl) * | 1994-06-23 | 1996-02-01 | Soonn Stichting Onderzoek En O | Werkwijze voor het bereiden van een biologisch afbreekbare polyhydroxyalkanoaat coating met behulp van een waterige dispersie van polyhydroxyalkanoaat. |
US6410096B1 (en) * | 1994-06-23 | 2002-06-25 | Stichting Onderzoek En Ontwikkeling Noord-Nederland (Soonn) | Method for producing a biologically degradable polyhydroxyalkanoate coating with the aid of an aqueous dispersion of polyhydroxyalkanoate |
US5958480A (en) * | 1994-06-23 | 1999-09-28 | Stichting Onderzoek En Ontwikkeling Noord-Nederland (Soonn) | Method for producing a biologically degradable polyhydroxyalkanoate coating with the aid of an aqueous dispersion of polyhydroxyalkanoate |
US5894062A (en) * | 1994-08-18 | 1999-04-13 | Monsanto Company | Process for the recovery of polyhydroxyalkanoic acid |
WO1996006179A1 (fr) * | 1994-08-18 | 1996-02-29 | Monsanto Company | Procede de recuperation d'un acide hydroxyalcanoique |
US5942597A (en) * | 1995-08-21 | 1999-08-24 | The Procter & Gamble Company | Solvent extraction of polyhydroxyalkanoates from biomass |
WO1997007230A1 (fr) * | 1995-08-21 | 1997-02-27 | The Procter & Gamble Company | Extraction par solvant de polyhydroxyalcanoates d'une biomasse |
WO1997008931A3 (fr) * | 1995-09-09 | 1997-04-24 | Buna Sow Leuna Olefinverb Gmbh | Agent d'extraction pour les acides de polyhydroxyalcanes |
WO1997015681A1 (fr) * | 1995-10-26 | 1997-05-01 | Metabolix, Inc. | Procedes d'extraction de polyhydroxyalkanoates a partir de vegetaux |
US6083729A (en) * | 1995-10-26 | 2000-07-04 | Metabolix, Inc. | Methods for isolating polyhydroxyalkanoates from plants |
US6709848B1 (en) | 1995-10-26 | 2004-03-23 | Metabolix, Inc. | Methods for isolating polyhydroxyalkanoates from plants |
US5821299A (en) * | 1996-02-16 | 1998-10-13 | The Proctor & Gamble Company | Solvent extraction of polyhydroxy-alkanoates from biomass facilitated by the use of marginal nonsolvent |
EP0973930A1 (fr) | 1997-04-15 | 2000-01-26 | Monsanto Company | Extraction de pha a haute temperature au moyen de solvants pauvres en pha |
EP0975788A1 (fr) | 1997-04-15 | 2000-02-02 | Monsanto Company | Procedes d'extraction et de recuperation de pha a l'aide de solvants non halogenes |
EP0973930B1 (fr) * | 1997-04-15 | 2007-06-13 | Metabolix, Inc. | Extraction de pha a haute temperature a l' aide de faibles solvants a pha |
US6368836B2 (en) | 1998-04-08 | 2002-04-09 | Metabolix, Inc. | Method of decolorizing or deodorizing polyhydroxyalkanoates from biomass with ozone |
WO2014027129A1 (fr) | 2012-08-14 | 2014-02-20 | Neol Biosolutions, S.A. | Production de bioplastiques |
Also Published As
Publication number | Publication date |
---|---|
US5422257A (en) | 1995-06-06 |
JPH06505403A (ja) | 1994-06-23 |
EP0569569A1 (fr) | 1993-11-18 |
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