GB742972A - Improvements in or relating to the production of citric acid - Google Patents
Improvements in or relating to the production of citric acidInfo
- Publication number
- GB742972A GB742972A GB32137/53A GB3213753A GB742972A GB 742972 A GB742972 A GB 742972A GB 32137/53 A GB32137/53 A GB 32137/53A GB 3213753 A GB3213753 A GB 3213753A GB 742972 A GB742972 A GB 742972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- citric acid
- fermentation
- carbohydrate
- incorporated
- 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
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Citric acid is produced by the submerged vegetative fermentation of a carbohydrate-containing medium by means of Aspergillus niger, in which copper in ionic form is incorporated into the carbohydrate-containing medium. Copper can advantageously be added as copper sulphate but may also be incorporated in the form of any salt soluble in the fermentation medium providing it does not have an undesirable anion. The copper eliminates the adverse effect of nutrient iron on cellular morphology. In the examples media containing (a) undeca tionized corn sugar, and (b) decationized corn sugar are subjected to submerged vegetative fermentation by means of Aspergillus niger in the presence of varying quantities of copper in ionic form. Specification 653,808 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US742972XA | 1953-01-05 | 1953-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB742972A true GB742972A (en) | 1956-01-04 |
Family
ID=22118827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32137/53A Expired GB742972A (en) | 1953-01-05 | 1953-11-19 | Improvements in or relating to the production of citric acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB742972A (en) |
-
1953
- 1953-11-19 GB GB32137/53A patent/GB742972A/en not_active Expired
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