IE36315B1 - A process for the enzymatic production of l-tryptophan - Google Patents
A process for the enzymatic production of l-tryptophanInfo
- Publication number
- IE36315B1 IE36315B1 IE531/72A IE53172A IE36315B1 IE 36315 B1 IE36315 B1 IE 36315B1 IE 531/72 A IE531/72 A IE 531/72A IE 53172 A IE53172 A IE 53172A IE 36315 B1 IE36315 B1 IE 36315B1
- Authority
- IE
- Ireland
- Prior art keywords
- filaments
- enzymes
- enzyme
- april
- solution
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/04—Enzymes or microbial cells immobilised on or in an organic carrier entrapped within the carrier, e.g. gel or hollow fibres
-
- 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
- C12P13/22—Tryptophan; Tyrosine; Phenylalanine; 3,4-Dihydroxyphenylalanine
- C12P13/227—Tryptophan
Abstract
1386674 Filaments containing enzymes SNAM PROGETTI SpA 21 April 1972 [23 April 1971] 18743/72 Heading B5B [Also in Divisions B8 C2 and C3] Enzymes encased in filaments are prepared by dispersing the enzyme in a solution of a polymer capable of producing filaments, and wet or dry spinning the dispersion. Suitable polymers are nitrated or esterified cellulose polymers, polyolefins, homopolymers and copolymers of acrylates, methacrylates, vinyl esters, vinyl chloride, vinylidene chloride and styrene, and polyamides. Enzymes for producing L-tryptophan from indole and serine in the presence of the enzyme-containing filament may be obtained from Escherichia coli, Claviceps, Neurospora, Bacillus subtilis or Saccharomyces. In examples, an enzyme derived from E. coli in a phosphate buffer solution or in aqueous glycerol was emulsified in a methylene chloride solution of cellulose triacetate, the emulsion was poured into a spinneret at 0 C., spun under a nitrogen atmosphere and coagulated in toluene to provide a filament which was then dried under vacuum.
[GB1386674A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT23547/71A IT989051B (en) | 1971-04-23 | 1971-04-23 | PROCEDURE FOR THE ENZYMATIC PRODUCTION OF L TRYPTOPHANE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE36315L IE36315L (en) | 1972-10-23 |
| IE36315B1 true IE36315B1 (en) | 1976-10-13 |
Family
ID=11208035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE531/72A IE36315B1 (en) | 1971-04-23 | 1972-04-21 | A process for the enzymatic production of l-tryptophan |
Country Status (22)
| Country | Link |
|---|---|
| AR (1) | AR194838A1 (en) |
| AT (1) | AT315111B (en) |
| AU (1) | AU472805B2 (en) |
| BE (1) | BE782356A (en) |
| BR (1) | BR7202471D0 (en) |
| CH (1) | CH550790A (en) |
| CS (1) | CS173601B2 (en) |
| DD (1) | DD97887A5 (en) |
| DE (1) | DE2219671A1 (en) |
| ES (1) | ES402781A1 (en) |
| FR (1) | FR2133923B1 (en) |
| GB (1) | GB1386674A (en) |
| HU (1) | HU165737B (en) |
| IE (1) | IE36315B1 (en) |
| IL (1) | IL39096A (en) |
| IT (1) | IT989051B (en) |
| LU (1) | LU65216A1 (en) |
| NL (1) | NL7204584A (en) |
| PL (1) | PL81836B1 (en) |
| SE (1) | SE387631B (en) |
| TR (1) | TR16805A (en) |
| ZA (1) | ZA722615B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2048266B (en) * | 1979-05-09 | 1983-11-30 | Mitsui Toatsu Chemicals | Enzymatic preparation of l-tryptophan |
| EG18543A (en) * | 1986-02-20 | 1993-07-30 | Albright & Wilson | Protected enzyme systems |
| GB2189809A (en) * | 1986-05-03 | 1987-11-04 | Michael Storey Otterburn | Immobilized biological material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL32406A (en) * | 1968-06-26 | 1973-01-30 | Snam Progetti | Enzyme preparations comprising a solution or dispersion of enzyme occluded in filaments of cellulose esters or synthetic polymers |
-
1971
- 1971-04-23 IT IT23547/71A patent/IT989051B/en active
-
1972
- 1972-03-27 IL IL39096A patent/IL39096A/en unknown
- 1972-04-04 AU AU40722/72A patent/AU472805B2/en not_active Expired
- 1972-04-06 NL NL7204584A patent/NL7204584A/xx not_active Application Discontinuation
- 1972-04-18 ZA ZA722615A patent/ZA722615B/en unknown
- 1972-04-18 BR BR2471/72A patent/BR7202471D0/en unknown
- 1972-04-19 ES ES402781A patent/ES402781A1/en not_active Expired
- 1972-04-20 CS CS2681A patent/CS173601B2/cs unknown
- 1972-04-20 BE BE782356A patent/BE782356A/en unknown
- 1972-04-20 FR FR7213902A patent/FR2133923B1/fr not_active Expired
- 1972-04-21 AT AT355772A patent/AT315111B/en not_active IP Right Cessation
- 1972-04-21 GB GB1874372A patent/GB1386674A/en not_active Expired
- 1972-04-21 AR AR241606A patent/AR194838A1/en active
- 1972-04-21 DE DE19722219671 patent/DE2219671A1/en active Pending
- 1972-04-21 SE SE7205291A patent/SE387631B/en unknown
- 1972-04-21 HU HUSA2345A patent/HU165737B/hu unknown
- 1972-04-21 PL PL1972154898A patent/PL81836B1/pl unknown
- 1972-04-21 IE IE531/72A patent/IE36315B1/en unknown
- 1972-04-21 DD DD162504A patent/DD97887A5/xx unknown
- 1972-04-21 LU LU65216D patent/LU65216A1/xx unknown
- 1972-04-22 CH CH592472A patent/CH550790A/en not_active IP Right Cessation
- 1972-04-24 TR TR16805A patent/TR16805A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH550790A (en) | 1974-06-28 |
| CS173601B2 (en) | 1977-02-28 |
| AR194838A1 (en) | 1973-08-24 |
| AU472805B2 (en) | 1973-10-11 |
| AT315111B (en) | 1974-05-10 |
| FR2133923B1 (en) | 1974-12-20 |
| IT989051B (en) | 1975-05-20 |
| BE782356A (en) | 1972-08-16 |
| BR7202471D0 (en) | 1973-05-24 |
| PL81836B1 (en) | 1975-10-31 |
| DD97887A5 (en) | 1973-05-20 |
| LU65216A1 (en) | 1972-07-13 |
| SE387631B (en) | 1976-09-13 |
| ES402781A1 (en) | 1975-04-01 |
| FR2133923A1 (en) | 1972-12-01 |
| IE36315L (en) | 1972-10-23 |
| IL39096A0 (en) | 1972-05-30 |
| HU165737B (en) | 1974-10-28 |
| NL7204584A (en) | 1972-10-25 |
| ZA722615B (en) | 1973-04-25 |
| IL39096A (en) | 1975-04-25 |
| GB1386674A (en) | 1975-03-12 |
| AU4072272A (en) | 1973-10-11 |
| TR16805A (en) | 1973-05-01 |
| DE2219671A1 (en) | 1972-11-16 |
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