GB1418561A - Citric acid production - Google Patents

Citric acid production

Info

Publication number
GB1418561A
GB1418561A GB3040873A GB3040873A GB1418561A GB 1418561 A GB1418561 A GB 1418561A GB 3040873 A GB3040873 A GB 3040873A GB 3040873 A GB3040873 A GB 3040873A GB 1418561 A GB1418561 A GB 1418561A
Authority
GB
United Kingdom
Prior art keywords
medium
citric acid
carbohydrate
june
yeast
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
GB3040873A
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.)
Pfizer Ltd
Original Assignee
Pfizer 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 Pfizer Ltd filed Critical Pfizer Ltd
Priority to GB3040873A priority Critical patent/GB1418561A/en
Priority to IE1249/74A priority patent/IE39897B1/en
Priority to DE19742429224 priority patent/DE2429224B2/en
Priority to BE145592A priority patent/BE816527A/en
Priority to IL45063A priority patent/IL45063A0/en
Priority to IT24463/74A priority patent/IT1015431B/en
Priority to LU70396*A priority patent/LU70396A1/xx
Priority to NL7408505A priority patent/NL7408505A/xx
Priority to FR7422081A priority patent/FR2235196B1/fr
Priority to DK340974AA priority patent/DK135177B/en
Priority to JP49073202A priority patent/JPS5019986A/ja
Publication of GB1418561A publication Critical patent/GB1418561A/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
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
    • C12P7/44—Polycarboxylic acids
    • C12P7/48—Tricarboxylic acids, e.g. citric acid

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)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

1418561 Citric acid PFIZER Ltd 25 June 1974 [26 June 1973] 30408/73 Heading C2C In a continuous process for the preparation of citric acid by the aerobic fermentation of an aqueous medium containing carbohydrate as a source of carbon together with other essential nutrients for a yeast, the carbohydrate and other nutrients are continuously fed to the medium and citric acid and medium are continuously withdrawn at a rate to maintain a constant volume, while maintaining the pH at 2À5 to 4À5 at 22 to 35‹ C. and recovering the citric acid from the withdrawn medium. A yeast Candida, e.g. Candida guilliermondii may be used and the pH controlled by addition of gaseous or aqueous ammonia. The carbohydrate may be cane or beet molasses and the fermenting medium aerated by sparging air at 0À3 to 1À5 volumes air per volume of medium per minute.
GB3040873A 1973-06-26 1973-06-26 Citric acid production Expired GB1418561A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB3040873A GB1418561A (en) 1973-06-26 1973-06-26 Citric acid production
IE1249/74A IE39897B1 (en) 1973-06-26 1974-06-14 Citric acid production
DE19742429224 DE2429224B2 (en) 1973-06-26 1974-06-18 CONTINUOUS PROCESS FOR FERMENTATIONAL PRODUCTION OF CITRIC ACID
BE145592A BE816527A (en) 1973-06-26 1974-06-18 PROCESS FOR SYNTHESIS OF "CITRIC ACID"
IL45063A IL45063A0 (en) 1973-06-26 1974-06-18 Citric acid production
IT24463/74A IT1015431B (en) 1973-06-26 1974-06-25 PRODUCTION OF CITRIC ACID
LU70396*A LU70396A1 (en) 1973-06-26 1974-06-25
NL7408505A NL7408505A (en) 1973-06-26 1974-06-25
FR7422081A FR2235196B1 (en) 1973-06-26 1974-06-25
DK340974AA DK135177B (en) 1973-06-26 1974-06-25 Process for the continuous production of citric acid.
JP49073202A JPS5019986A (en) 1973-06-26 1974-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3040873A GB1418561A (en) 1973-06-26 1973-06-26 Citric acid production

Publications (1)

Publication Number Publication Date
GB1418561A true GB1418561A (en) 1975-12-24

Family

ID=10307239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3040873A Expired GB1418561A (en) 1973-06-26 1973-06-26 Citric acid production

Country Status (11)

Country Link
JP (1) JPS5019986A (en)
BE (1) BE816527A (en)
DE (1) DE2429224B2 (en)
DK (1) DK135177B (en)
FR (1) FR2235196B1 (en)
GB (1) GB1418561A (en)
IE (1) IE39897B1 (en)
IL (1) IL45063A0 (en)
IT (1) IT1015431B (en)
LU (1) LU70396A1 (en)
NL (1) NL7408505A (en)

Also Published As

Publication number Publication date
FR2235196A1 (en) 1975-01-24
LU70396A1 (en) 1976-04-13
DK135177C (en) 1977-08-15
JPS5019986A (en) 1975-03-03
DE2429224A1 (en) 1975-01-16
IE39897B1 (en) 1979-01-31
DK340974A (en) 1975-03-17
FR2235196B1 (en) 1977-10-14
DE2429224B2 (en) 1977-12-08
BE816527A (en) 1974-12-18
DK135177B (en) 1977-03-14
IE39897L (en) 1974-12-26
IT1015431B (en) 1977-05-10
IL45063A0 (en) 1974-09-10
NL7408505A (en) 1974-12-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930625