SE8403934L - IMPROVED PROCEDURE FOR PREPARING L-AMINO ACIDS OF ALFA-KETOS ACIDS THROUGH SA CALLED FED BATCH FERMENTATION BACKGROUND OF THE INVENTION - Google Patents

IMPROVED PROCEDURE FOR PREPARING L-AMINO ACIDS OF ALFA-KETOS ACIDS THROUGH SA CALLED FED BATCH FERMENTATION BACKGROUND OF THE INVENTION

Info

Publication number
SE8403934L
SE8403934L SE8403934A SE8403934A SE8403934L SE 8403934 L SE8403934 L SE 8403934L SE 8403934 A SE8403934 A SE 8403934A SE 8403934 A SE8403934 A SE 8403934A SE 8403934 L SE8403934 L SE 8403934L
Authority
SE
Sweden
Prior art keywords
acids
preparing
amino acids
ketos
alfa
Prior art date
Application number
SE8403934A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8403934D0 (en
Inventor
C M Freitag
Original Assignee
Grace W R & Co
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 Grace W R & Co filed Critical Grace W R & Co
Publication of SE8403934D0 publication Critical patent/SE8403934D0/en
Publication of SE8403934L publication Critical patent/SE8403934L/en

Links

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
    • C12P13/00—Preparation of nitrogen-containing organic compounds
    • C12P13/04—Alpha- or beta- amino acids
    • C12P13/22—Tryptophan; Tyrosine; Phenylalanine; 3,4-Dihydroxyphenylalanine
    • 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

Landscapes

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

Abstract

A process is disclosed for preparing L-amino acids by contacting a logarithmically growing culture of suitable microorganisms with the corresponding alpha-keto acids with the rate and timing of the alpha-keto acid feeding being correlated to the rate of culture growth e.g. by monitoring changes in the pH of the culture broth brought about by changes in culture growth rate. Both the upper and lower pH levels can be controlled during fermentation to maximize the environmental conditions for the conversion of the precursor to the L-amino acid by the growing culture.
SE8403934A 1983-08-05 1984-07-31 IMPROVED PROCEDURE FOR PREPARING L-AMINO ACIDS OF ALFA-KETOS ACIDS THROUGH SA CALLED FED BATCH FERMENTATION BACKGROUND OF THE INVENTION SE8403934L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52063183A 1983-08-05 1983-08-05

Publications (2)

Publication Number Publication Date
SE8403934D0 SE8403934D0 (en) 1984-07-31
SE8403934L true SE8403934L (en) 1985-02-06

Family

ID=24073429

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8403934A SE8403934L (en) 1983-08-05 1984-07-31 IMPROVED PROCEDURE FOR PREPARING L-AMINO ACIDS OF ALFA-KETOS ACIDS THROUGH SA CALLED FED BATCH FERMENTATION BACKGROUND OF THE INVENTION

Country Status (8)

Country Link
JP (1) JPS6043391A (en)
AU (1) AU3040684A (en)
DE (1) DE3427494A1 (en)
FR (1) FR2550224A1 (en)
GB (1) GB2147580A (en)
IT (1) IT1176405B (en)
NL (1) NL8401255A (en)
SE (1) SE8403934L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122995A (en) * 1982-01-14 1983-07-21 Nippon Steel Chem Co Ltd Lubricant composition
JPS58122996A (en) * 1982-01-14 1983-07-21 Nippon Steel Chem Co Ltd Grease composition
NL8401049A (en) * 1983-08-05 1985-03-01 Grace W R & Co PROCESS FOR THE PREPARATION OF L-AMINO ACIDS FROM ALFA-KETO ACIDS.
EP0166903B1 (en) * 1984-05-25 1991-03-06 Degussa Aktiengesellschaft Process for the production by fermentation of branched aliphatic or aromatic l-amino acids from alpha-ketocarboxylic acids
DE3614586A1 (en) * 1986-05-02 1987-11-05 Degussa METHOD FOR THE FERMENTATIVE PRODUCTION OF L-AMINO ACIDS FROM (ALPHA) KETOCARBOXYL ACIDS
US6589098B2 (en) 1999-08-06 2003-07-08 Mattel, Inc. Toy vehicle with pivotally mounted side wheels

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776722A (en) * 1954-10-12 1957-06-12 Pfizer & Co C Improvements in a process for the preparation of optically active glutamic acid
GB842679A (en) * 1957-06-27 1960-07-27 Int Minerals & Chem Corp Process for producing l-glutamic acid
GB903312A (en) * 1959-03-17 1962-08-15 Ajinomoto Kk Improvements in or relating to the production of l-tryptophan
US3183170A (en) * 1961-10-03 1965-05-11 Sanraku Ocean Kabushiki Kaisha Method of l-amino acid manufacture
GB1126579A (en) * 1965-01-05 1968-09-05 Merck & Co Inc Continuous production of glutamic acid by fermentation
US3502544A (en) * 1966-10-31 1970-03-24 Noda Inst For Scientific Res Process for producing l-isoleucine by fermentation
US3551292A (en) * 1967-02-28 1970-12-29 Ajinomoto Kk Process of producing l-glutamic acid by fermentation
NL157656B (en) * 1967-04-13 1978-08-15 Takeda Chemical Industries Ltd PROCESS FOR PREPARING L-GLUTAMIC ACID USING A MICRO-ORGANISM.
JPS5146836B1 (en) * 1968-03-09 1976-12-11
IT1006005B (en) * 1969-02-27 1976-09-30 Ajinomoto Kk PRODUCTION OF LYSINE BY FERMENTATION
CH537904A (en) * 1969-08-16 1973-06-15 Sankyo Co Process for the preparation of L-3,4-dihydroxyphenylalanine derivatives
JPS4744183B1 (en) * 1969-10-27 1972-11-08
US3766010A (en) * 1971-08-26 1973-10-16 Ajinomoto Kk Method for controlling fermentation process
SE368400B (en) * 1972-02-03 1974-07-01 Bofors Ab
SU494040A1 (en) * 1973-04-12 1978-04-15 Институт Микробиологии Им.Августа Кирхенштейна Ан Латвийской Сср Method of preparing l-lysine
SU943282A1 (en) * 1979-07-13 1982-07-15 Всесоюзный научно-исследовательский институт генетики и селекции промышленных микроорганизмов Process for producing l-treonine

Also Published As

Publication number Publication date
IT8421922A0 (en) 1984-07-17
GB8419144D0 (en) 1984-08-30
JPS6043391A (en) 1985-03-07
AU3040684A (en) 1985-02-07
FR2550224A1 (en) 1985-02-08
NL8401255A (en) 1985-03-01
DE3427494A1 (en) 1985-02-14
GB2147580A (en) 1985-05-15
SE8403934D0 (en) 1984-07-31
IT8421922A1 (en) 1986-01-17
IT1176405B (en) 1987-08-18

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