CH309768A - Process for the preparation of 2-keto-l-idonic acid. - Google Patents

Process for the preparation of 2-keto-l-idonic acid.

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Publication number
CH309768A
CH309768A CH309768DA CH309768A CH 309768 A CH309768 A CH 309768A CH 309768D A CH309768D A CH 309768DA CH 309768 A CH309768 A CH 309768A
Authority
CH
Switzerland
Prior art keywords
keto
idonic acid
fermentation
preparation
idonic
Prior art date
Application number
Other languages
German (de)
Inventor
Fabriken Knoll Ag Chemische
Original Assignee
Knoll Ag
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 Knoll Ag filed Critical Knoll Ag
Publication of CH309768A publication Critical patent/CH309768A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H7/00Compounds containing non-saccharide radicals linked to saccharide radicals by a carbon-to-carbon bond
    • C07H7/02Acyclic radicals
    • C07H7/027Keto-aldonic acids
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/40Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
    • C12P7/58Aldonic, ketoaldonic or saccharic acids

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 307624.         Verfahren   <B>zur Herstellung von</B>     2-Keto-l-idonsäure.       Im Hauptpatent ist. ein Verfahren zur       llerstellung    von     2-Keto-l-idonsäure    beschrie  ben, welches darin besteht, dass man     1-Idon-          säure    oder ein Salz derselben der     oxydativen          Gärung    mit     Pseudomonas        aeruginosa    als       Gärungerreger    unterwirft.  



  Gegenstand des vorliegenden Zusatzpaten  tes ist ebenfalls ein Verfahren zur Herstellung  von     2-Keto-l-idonsäure    auf dem Wege der       oxy        dativ    en Vergärung von     1-Idonsäure    oder  von Salzen derselben. Dieses Verfahren ist     da.-          dureh        gekennzeichnet.,        da.ss    man     Aeetobacter          welanogenum    als Gärungserreger verwendet.

         auch    dieser Erreger lässt sich leicht durch ge  eignete Passagenzüchtung an die     1-Idonsäure     So weit assimilieren, dass der Gäreffekt dem  jenigen mit bekannten Erregern gleichkommt.  



  Für die     Vergärung    kann zum Beispiel das       Calcium-,    Kalium- oder     Ammoniumsalz    der       1-Idonsäure        in        Konzentrationen        bis        zu        10%     angewendet werden; die Vergärung wird  zweckmässig unter Belüftung bei 'Temperatu  ren von 28 -     30     C durchgeführt.  



  <I>Beispiel:</I>  50 g     Calcium-l-idonat    werden in 1 Liter       10/aigeni    Hefeextrakt oder     Hefeautolysat    ge  löst, 5 g     d=Glukose    zugesetzt, sterilisiert und    mit 50     cm3    einer durch Passagenzüchtung  auf dem gleichen Nährboden aktivierten Kul  tur von     Acetobacter        melanogenum    beimpft.  Nach einer Gärdauer von 3 - 5 Tagen bei  gleichzeitiger Belüftung mit steriler Luft oder  Sauerstoff und einer Gärtemperatur von 28  bis 30  C ist das     Maximum    der     Gärung    er  reicht.

   Nach Filtration der Bakterien wird im  Vakuum bei 400 C zu einem Sirup eingeengt  und dieser in 1 Liter Methanol eingerührt.  Das in Flocken ausfallende     Calcium-2-keto-          1-idonat        wird    filtriert und im Vakuum ge  trocknet. Ausbeute 35-40     b        Calcium-2-keto-          1-idonat    =<B>70</B> -     800/a    der Theorie. An Stelle  des     Calciumsalzes    der     1-Idonsäure    kann auch  das Kalium- oder     Ammoniumsalz    verwendet  werden.



  <B> Additional patent </B> to main patent no. 307624. Process <B> for the production of </B> 2-keto-l-idonic acid. The main patent is. a process for the production of 2-keto-l-idonic acid described, which consists in subjecting 1-idonic acid or a salt thereof to oxidative fermentation with Pseudomonas aeruginosa as the fermentation agent.



  The subject of the present additional patent is also a process for the production of 2-keto-l-idonic acid by way of the oxidative fermentation of 1-idonic acid or salts thereof. This process is characterized by the fact that Aeetobacter welanogenum is used as a fermentation agent.

         This pathogen, too, can easily be assimilated to 1-idonic acid through suitable passage breeding to such an extent that the fermentation effect is equivalent to that with known pathogens.



  For example, the calcium, potassium or ammonium salt of 1-idonic acid can be used in concentrations of up to 10% for fermentation; the fermentation is expediently carried out with aeration at temperatures of 28-30 C.



  <I> Example: </I> 50 g calcium l-idonate are dissolved in 1 liter 10 / aigeni yeast extract or yeast autolysate, 5 gd = glucose are added, sterilized and with 50 cm3 of a culture activated by passage cultivation on the same nutrient medium inoculated by Acetobacter melanogenum. After a fermentation period of 3 - 5 days with simultaneous ventilation with sterile air or oxygen and a fermentation temperature of 28 to 30 C, the maximum fermentation is enough.

   After filtration of the bacteria, the mixture is concentrated in vacuo at 400 ° C. to a syrup and this is stirred into 1 liter of methanol. The calcium 2-keto-1-idonate which precipitates out in flakes is filtered and dried in vacuo. Yield 35-40 b calcium 2-keto-1-idonate = <B> 70 </B> - 800 / a of theory. The potassium or ammonium salt can also be used instead of the calcium salt of 1-idonic acid.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 2-Keto- 1-idonsäure durch oxydativ e Vergärung von 1-Idonsäure oder von Salzen derselben, dadurch gekennzeichnet, dass man Acetobacter inelano- genum als Gärungserreger verwendet. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Gärung bei 28 bis 30 C unter Belüftung durchführt. PATENT CLAIM: Process for the production of 2-keto-1-idonic acid by oxidative fermentation of 1-idonic acid or of salts thereof, characterized in that Acetobacter inelanogenum is used as fermentation agent. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that fermentation is carried out at 28 to 30 C with aeration.
CH309768D 1951-09-21 1952-08-15 Process for the preparation of 2-keto-l-idonic acid. CH309768A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE309768X 1951-09-21
DE307624X 1951-09-21

Publications (1)

Publication Number Publication Date
CH309768A true CH309768A (en) 1955-09-15

Family

ID=32963274

Family Applications (2)

Application Number Title Priority Date Filing Date
CH307624D CH307624A (en) 1951-09-21 1952-08-15 Process for the preparation of 2-keto-1-idonic acid.
CH309768D CH309768A (en) 1951-09-21 1952-08-15 Process for the preparation of 2-keto-l-idonic acid.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH307624D CH307624A (en) 1951-09-21 1952-08-15 Process for the preparation of 2-keto-1-idonic acid.

Country Status (1)

Country Link
CH (2) CH307624A (en)

Also Published As

Publication number Publication date
CH307624A (en) 1955-06-15

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