NO832908L - Isolering av mikrobielle polysaccharider fra deres fettaminaddukter - Google Patents
Isolering av mikrobielle polysaccharider fra deres fettaminaddukterInfo
- Publication number
- NO832908L NO832908L NO832908A NO832908A NO832908L NO 832908 L NO832908 L NO 832908L NO 832908 A NO832908 A NO 832908A NO 832908 A NO832908 A NO 832908A NO 832908 L NO832908 L NO 832908L
- Authority
- NO
- Norway
- Prior art keywords
- adducts
- amine
- alcohol
- fatty
- microbial polysaccharides
- Prior art date
Links
- 150000004676 glycans Chemical class 0.000 title claims abstract description 17
- 229920001282 polysaccharide Polymers 0.000 title claims abstract description 17
- 239000005017 polysaccharide Substances 0.000 title claims abstract description 17
- 230000000813 microbial effect Effects 0.000 title claims abstract description 16
- 238000009413 insulation Methods 0.000 title description 2
- 150000001412 amines Chemical class 0.000 claims abstract description 25
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009835 boiling Methods 0.000 claims abstract description 7
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 25
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical group C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 claims description 13
- 229920001285 xanthan gum Polymers 0.000 claims description 13
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 150000003973 alkyl amines Chemical class 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000047 product Substances 0.000 description 7
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical class CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 2
- 239000005695 Ammonium acetate Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 241000589636 Xanthomonas campestris Species 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 235000019257 ammonium acetate Nutrition 0.000 description 2
- 229940043376 ammonium acetate Drugs 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 150000003335 secondary amines Chemical class 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- VKIGAWAEXPTIOL-UHFFFAOYSA-N 2-hydroxyhexanenitrile Chemical compound CCCCC(O)C#N VKIGAWAEXPTIOL-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 101500021084 Locusta migratoria 5 kDa peptide Proteins 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- -1 alkyl dimethylamine Chemical compound 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 235000019797 dipotassium phosphate Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000006479 glucose peptone medium Substances 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 229960004592 isopropanol Drugs 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical class CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- NHLUVTZJQOJKCC-UHFFFAOYSA-N n,n-dimethylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCN(C)C NHLUVTZJQOJKCC-UHFFFAOYSA-N 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical class CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- PTMFUWGXPRYYMC-UHFFFAOYSA-N triethylazanium;formate Chemical compound OC=O.CCN(CC)CC PTMFUWGXPRYYMC-UHFFFAOYSA-N 0.000 description 1
- UPVCRZBVVOXMDA-UHFFFAOYSA-N trimethylazanium;formate Chemical compound OC=O.CN(C)C UPVCRZBVVOXMDA-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
-
- 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
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
- C12P19/06—Xanthan, i.e. Xanthomonas-type heteropolysaccharides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
-
- 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
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- General Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Sustainable Development (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Biological Depolymerization Polymers (AREA)
- Hall/Mr Elements (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823230301 DE3230301A1 (de) | 1982-08-14 | 1982-08-14 | Isolierung mikrobieller polysaccharide aus ihren fettamin-addukten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO832908L true NO832908L (no) | 1984-02-15 |
Family
ID=6170890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO832908A NO832908L (no) | 1982-08-14 | 1983-08-12 | Isolering av mikrobielle polysaccharider fra deres fettaminaddukter |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4703117A (es) |
| EP (1) | EP0103178B1 (es) |
| JP (1) | JPS5953503A (es) |
| KR (1) | KR840005820A (es) |
| AT (1) | ATE32902T1 (es) |
| AU (1) | AU1795683A (es) |
| BR (1) | BR8304346A (es) |
| CA (1) | CA1204400A (es) |
| DD (1) | DD210309A5 (es) |
| DE (2) | DE3230301A1 (es) |
| DK (1) | DK368883A (es) |
| ES (1) | ES524905A0 (es) |
| FI (1) | FI832901A (es) |
| GR (1) | GR78695B (es) |
| IL (1) | IL69477A (es) |
| NO (1) | NO832908L (es) |
| PT (1) | PT77189B (es) |
| ZA (1) | ZA835946B (es) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635692A (en) * | 1979-08-30 | 1981-04-08 | Mitsubishi Electric Corp | Control device for transistor motor |
| GB8426529D0 (en) * | 1984-10-19 | 1984-11-28 | Allied Colloids Ltd | Dry polymers |
| GB8520101D0 (en) * | 1985-08-09 | 1985-09-18 | Unilever Plc | Phase separation |
| IL76981A (en) * | 1985-11-07 | 1989-02-28 | Univ Ramot | Bacterially produced hetero polysaccharide dispersants for inorganic minerals in aqueous medium and their preparation |
| SG47515A1 (en) * | 1987-02-26 | 1998-04-17 | Bio Polymers Pty Ltd | Plant gum material and use thereof in food products |
| JP3741734B2 (ja) | 1994-06-30 | 2006-02-01 | 信越化学工業株式会社 | キサンタンガムの回収精製方法 |
| US6271001B1 (en) | 1995-03-23 | 2001-08-07 | Bio Polymers Pty. Ltd. | Cultured plant cell gums for food, pharmaceutical, cosmetic and industrial applications |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1167747A (en) * | 1965-11-16 | 1969-10-22 | Ashland Oil Inc | Precipitation of Polymeric Hydroxyl Compounds |
| US3422085A (en) * | 1966-07-29 | 1969-01-14 | Hercules Inc | Recovery and purification of microbial polysaccharides |
| US3598730A (en) * | 1968-04-15 | 1971-08-10 | Gen Mills Inc | Process of flocculating silica with a cationic xanthomonas gum ether |
| US3729460A (en) * | 1970-03-02 | 1973-04-24 | J Patton | Modified heteropolysaccharides |
| US3928316A (en) * | 1974-04-22 | 1975-12-23 | Gen Mills Chem Inc | Xanthomonas gum amine salts |
| US4135979A (en) * | 1976-08-24 | 1979-01-23 | Merck & Co., Inc. | Treatment of xanthan gum to improve clarity |
| US4254257A (en) * | 1979-02-21 | 1981-03-03 | The Lubrizol Corporation | Amine salts of acidic microbial polysaccharides and their use in recovery of such polysaccharides |
| DE3230302A1 (de) * | 1982-08-14 | 1984-02-16 | Hoechst Ag, 6230 Frankfurt | Isolierung mikrobieller polysaccharide aus ihren amin-addukten |
-
1982
- 1982-08-14 DE DE19823230301 patent/DE3230301A1/de not_active Withdrawn
-
1983
- 1983-08-11 AT AT83107960T patent/ATE32902T1/de not_active IP Right Cessation
- 1983-08-11 PT PT77189A patent/PT77189B/pt unknown
- 1983-08-11 EP EP83107960A patent/EP0103178B1/de not_active Expired
- 1983-08-11 FI FI832901A patent/FI832901A/fi not_active Application Discontinuation
- 1983-08-11 DE DE8383107960T patent/DE3375919D1/de not_active Expired
- 1983-08-12 AU AU17956/83A patent/AU1795683A/en not_active Abandoned
- 1983-08-12 ZA ZA835946A patent/ZA835946B/xx unknown
- 1983-08-12 KR KR1019830003772A patent/KR840005820A/ko not_active Application Discontinuation
- 1983-08-12 DD DD83253926A patent/DD210309A5/de unknown
- 1983-08-12 IL IL69477A patent/IL69477A/xx unknown
- 1983-08-12 JP JP58146756A patent/JPS5953503A/ja active Pending
- 1983-08-12 ES ES524905A patent/ES524905A0/es active Granted
- 1983-08-12 NO NO832908A patent/NO832908L/no unknown
- 1983-08-12 GR GR72214A patent/GR78695B/el unknown
- 1983-08-12 DK DK368883A patent/DK368883A/da not_active Application Discontinuation
- 1983-08-12 CA CA000434448A patent/CA1204400A/en not_active Expired
- 1983-08-12 BR BR8304346A patent/BR8304346A/pt unknown
-
1985
- 1985-10-07 US US06/783,814 patent/US4703117A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES8404380A1 (es) | 1984-05-01 |
| PT77189A (de) | 1983-09-01 |
| EP0103178A3 (en) | 1985-05-22 |
| US4703117A (en) | 1987-10-27 |
| FI832901A0 (fi) | 1983-08-11 |
| IL69477A0 (en) | 1983-11-30 |
| DK368883A (da) | 1984-02-15 |
| EP0103178B1 (de) | 1988-03-09 |
| KR840005820A (ko) | 1984-11-19 |
| CA1204400A (en) | 1986-05-13 |
| DK368883D0 (da) | 1983-08-12 |
| BR8304346A (pt) | 1984-03-20 |
| GR78695B (es) | 1984-09-27 |
| EP0103178A2 (de) | 1984-03-21 |
| ZA835946B (en) | 1984-04-25 |
| IL69477A (en) | 1986-08-31 |
| DD210309A5 (de) | 1984-06-06 |
| JPS5953503A (ja) | 1984-03-28 |
| AU1795683A (en) | 1984-02-16 |
| FI832901A (fi) | 1984-02-15 |
| PT77189B (de) | 1986-03-27 |
| DE3375919D1 (en) | 1988-04-14 |
| ES524905A0 (es) | 1984-05-01 |
| DE3230301A1 (de) | 1984-02-16 |
| ATE32902T1 (de) | 1988-03-15 |
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