GB1190687A - Process for producing L-Threonine - Google Patents

Process for producing L-Threonine

Info

Publication number
GB1190687A
GB1190687A GB6043568A GB6043568A GB1190687A GB 1190687 A GB1190687 A GB 1190687A GB 6043568 A GB6043568 A GB 6043568A GB 6043568 A GB6043568 A GB 6043568A GB 1190687 A GB1190687 A GB 1190687A
Authority
GB
United Kingdom
Prior art keywords
threonine
growth
requisite
nutrient medium
growth requisite
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB6043568A
Inventor
Kiyoshi Nakayama
Hiroshi Kase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KH Neochem Co Ltd
Original Assignee
Kyowa Hakko Kogyo Co Ltd
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 Kyowa Hakko Kogyo Co Ltd filed Critical Kyowa Hakko Kogyo Co Ltd
Priority to GB6043568A priority Critical patent/GB1190687A/en
Publication of GB1190687A publication Critical patent/GB1190687A/en
Expired legal-status Critical Current

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
    • C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine

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

1,190,687. L-Threonine by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 19 Dec., 1968, No. 60435/68. Heading C2C. L-Threonine is produced by culturing an L-threonine-producing micro-organism of the genus Aerobacter, Serratia, Arthrobacter, Paracolobactrum, Erwinia, Proteus, Brevibacterium, Corynebacterium, Pseudomonas, Xanthomonas, Microbacterium, Bacillus, Nocardia, Streptomyces, Agrobacterium, Azotobacter, and Rhizobium, and which requires at least two of the compounds isoleucine, lysine, methionine and diaminopimelic acid as a growth requisite, under aerobic conditions in an aqueous nutrient medium containing an optimum amount or less of said growth requisite and accumulating L-threonine in the resultant liquor. The process is normally effected at 20-40‹ C., at pH 4À5- 9À5, and the nutrient medium preferably contains from 5 mg./l. to 1000 mg/l. of each growth requisite. Examples detail the preparation of suitable mutants having the necessary growth requirements from a species of each of the 17 genera mentioned above and their use in the production of L-threonine.
GB6043568A 1968-12-19 1968-12-19 Process for producing L-Threonine Expired GB1190687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6043568A GB1190687A (en) 1968-12-19 1968-12-19 Process for producing L-Threonine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6043568A GB1190687A (en) 1968-12-19 1968-12-19 Process for producing L-Threonine

Publications (1)

Publication Number Publication Date
GB1190687A true GB1190687A (en) 1970-05-06

Family

ID=10485597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6043568A Expired GB1190687A (en) 1968-12-19 1968-12-19 Process for producing L-Threonine

Country Status (1)

Country Link
GB (1) GB1190687A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429C Application to amend the specification withdrawn (sect. 29/1949)
PCNP Patent ceased through non-payment of renewal fee