IE36315L - Enzymatic production of l-tryptophan - Google Patents

Enzymatic production of l-tryptophan

Info

Publication number
IE36315L
IE36315L IE720531A IE53172A IE36315L IE 36315 L IE36315 L IE 36315L IE 720531 A IE720531 A IE 720531A IE 53172 A IE53172 A IE 53172A IE 36315 L IE36315 L IE 36315L
Authority
IE
Ireland
Prior art keywords
filaments
enzymes
enzyme
april
solution
Prior art date
Application number
IE720531A
Other versions
IE36315B1 (en
Original Assignee
Snam Progetti
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Snam Progetti filed Critical Snam Progetti
Publication of IE36315L publication Critical patent/IE36315L/en
Publication of IE36315B1 publication Critical patent/IE36315B1/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

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]
IE531/72A 1971-04-23 1972-04-21 A process for the enzymatic production of l-tryptophan IE36315B1 (en)

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 true IE36315L (en) 1972-10-23
IE36315B1 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2133923B1 (en) 1974-12-20
AT315111B (en) 1974-05-10
ZA722615B (en) 1973-04-25
BE782356A (en) 1972-08-16
AU472805B2 (en) 1973-10-11
TR16805A (en) 1973-05-01
NL7204584A (en) 1972-10-25
BR7202471D0 (en) 1973-05-24
SE387631B (en) 1976-09-13
FR2133923A1 (en) 1972-12-01
DD97887A5 (en) 1973-05-20
IL39096A0 (en) 1972-05-30
AU4072272A (en) 1973-10-11
IT989051B (en) 1975-05-20
PL81836B1 (en) 1975-10-31
DE2219671A1 (en) 1972-11-16
ES402781A1 (en) 1975-04-01
GB1386674A (en) 1975-03-12
IL39096A (en) 1975-04-25
CH550790A (en) 1974-06-28
AR194838A1 (en) 1973-08-24
LU65216A1 (en) 1972-07-13
CS173601B2 (en) 1977-02-28
HU165737B (en) 1974-10-28
IE36315B1 (en) 1976-10-13

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