DE426926C - Process for the production of citric acid and other organic acids - Google Patents

Process for the production of citric acid and other organic acids

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Publication number
DE426926C
DE426926C DEF49390D DEF0049390D DE426926C DE 426926 C DE426926 C DE 426926C DE F49390 D DEF49390 D DE F49390D DE F0049390 D DEF0049390 D DE F0049390D DE 426926 C DE426926 C DE 426926C
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DE
Germany
Prior art keywords
acid
organic acids
citric acid
production
acids
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
DEF49390D
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German (de)
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.)
RICHARD FALCK DR
Original Assignee
RICHARD FALCK DR
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 RICHARD FALCK DR filed Critical RICHARD FALCK DR
Priority to DEF49390D priority Critical patent/DE426926C/en
Application granted granted Critical
Publication of DE426926C publication Critical patent/DE426926C/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C12P7/44Polycarboxylic acids
    • C12P7/48Tricarboxylic acids, e.g. citric acid

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  • 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)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Description

Verfahren zur Herstellung von Citronensäure und anderen organischen Säuren. Es ist bekannt, daß Fadenpilze, z. B. solche der Gattungen Aspergillus, Citromyces, Penicillium aus Zucker, Citronensäure und andere organische Säuren, wie Bernsteinsäure, Apfelsäure, Weinsäure, bilden. Es hat sich nun gezeigt, daß die genannten Pilze auch in der Lage sind, aus stirkemehlhaltigen Stoffen diese Säuren, insbesondere Citronensäure, zu bilden. Es ist dies für die technische Herstellung besonders wichtig, da Zucker ein verhältnismäßig teures Ausgangsmaterial ist. Da diese Pilze auch unempfindlich sind gegen Gerbstoffe undGifte, die in manchenFrüchten enthalten sind, so kann man bei vorliegendem Verfahren auch für Futter- und Nährzwecke ungeeignete, Stärke enthaltende Materialien, wie z. B. Roßkastanien, Lupine, Kornradesamen, verwenden.Process for the production of citric acid and other organic Acids. It is known that thread fungi, e.g. B. those of the genera Aspergillus, Citromyces, Penicillium from sugar, citric acid and other organic acids, like succinic acid, malic acid, tartaric acid. It has now been shown that The above-mentioned mushrooms are also able to produce these from substances containing stirk flour Acids, especially citric acid, to form. It is for technical manufacturing especially important because sugar is a relatively expensive raw material. There These mushrooms are also insensitive to tannins and poisons that are found in some fruits are contained, so you can use the present method for feed and nutritional purposes unsuitable, starch-containing materials, such as. B. horse chestnuts, lupine, grain wheel seeds, use.

Beispiel i.Example i.

Weizenmehl Zoo g, Ammonnitrat 6,q. g, Calciumearbonat 26g, Wasser Soo g werden verrieben, bis zur Kastenkonsistenz verkleistert, heiß auf Glasplatten ausgestrichen, nach dem Abkühlen mit Sporen von CitromycesD geimpft. Nach ii Tagen bei 13° getrocknet und verrieben. Die Menge der gebildeten Säure entspricht 25 Prozent des Produktes. Besteht aus Mischung verschiedener Säuren mit mehreren Carbonsäuregruppen_ wie Bernsteinsäure, Äpfelsäure, Weinsäure, Citronensäure (Edelsäuren), keine Oxalsäure. Beispiel 2.Wheat flour zoo g, ammonium nitrate 6, q. g, calcium carbonate 26g, water Soo g are rubbed in, gelatinized until the consistency of the box, hot on glass plates streaked, inoculated with CitromycesD spores after cooling. After ii days dried at 13 ° and rubbed. The amount of acid formed corresponds to 25 percent of the product. Consists of a mixture of different acids with several carboxylic acid groups_ such as succinic acid, malic acid, tartaric acid, citric acid (noble acids), no oxalic acid. Example 2.

Weizenmehl Zoo g, Ammonnitrat 6,4 g, kohlensaurer Kalk 789, Wasser 8oo g verrieben und behandelt wie im Beispiel i, geimpft mit Sporen von Aspergillus F, 9 Tage bei 16° in feuchtem Raum gehalten, Säure-Behalt des Produktes entspricht 25 Prozent des verwendeten Mehles. Die Analyse ergibt Mischung der Edelsäuren, geringe Me.ige Oxalsäure.Wheat flour zoo g, ammonium nitrate 6.4 g, carbonate of lime 789, water 800 g triturated and treated as in example i, inoculated with spores of Aspergillus F, kept in a humid room for 9 days at 16 °, acid content of the product corresponds to 25 percent of the flour used. The analysis shows a mixture of the noble acids, low methyl oxalic acid.

Beispiel 3.Example 3.

Dieselbe Mischung und Behandlung sowie dieselbe Pilzart wie im Beispiel e, gehalten 21 Tage bei etwa 14°, ergibt eine Säuremenge v 38 Prozent des Produktes - 33 Prozent der verwendeten Mehlmenge. Die Analyse der gebildeten Säure ergibt etwa 9 Prozent Oxalsäure, etwa 2.a. Prozent Edelsäuremischung.The same mixture and treatment as well as the same type of mushroom as in the example e, held at about 14 ° for 21 days, gives an amount of acid v 38 percent of the product - 33 percent of the amount of flour used. Analysis of the acid formed shows about 9 percent oxalic acid, about 2.a. Percent noble acid mixture.

Man hat Hefearten, wie Amylomyces Rouxii, auf stärkehaltige Maische, also Flüssigkeiten, wachsen lassen (britische Patentschrift 14607/15), wobei sich Monocarbonsäuren, wie Brenztraubensäure und Essigsäure, bilden. Im Gegensatz hierzu verwendet das vorliegende Verfahren Fadenpilze, also Pilze, welche zu einer anderen Gruppe gehören wie Hefe. Das Verfahren liißt diese Fadenpilze nicht in Maische sich entwickeln, sondern auf festen Substraten, wie Stäke. Entsprechend der verschiedenen Natur der verwendeten Pilze und der verschiedenen Art der Entwicklung erhält man nach dem vorliegenden Verfahren, im Gegensatz zu den bekannten Verfahren, nicht Monocarbonsäuren, sondern Säuren mit mehreren Carboxylgruppen.You have yeasts, such as Amylomyces Rouxii, on starchy mash, so liquids, let grow (British patent 14607/15), whereby Monocarboxylic acids such as pyruvic acid and acetic acid form. In contrast to this the present method uses filamentous fungi, i.e. fungi which lead to another Group belong like yeast. The procedure leaves this Thread fungi do not develop in mash, but on solid substrates such as starch. Corresponding the different nature of the mushrooms used and the different ways of development according to the present process, in contrast to the known processes, not monocarboxylic acids, but acids with several carboxyl groups.

Claims (1)

PATENT-AN.srnTTcH: Verfahren zur Herstellung von Citronensäure und anderen organischen Säuren, dadurch gekennzeichnet, daß man Fadenpilze auf Stärke enthaltenden festen Substraten wachsen läBt und die Masse in üblicher Weise auf die entstandenen organischen Säuren verarbeitet.PATENT-AN.srnTTcH: Process for the production of citric acid and other organic acids, characterized in that thread fungi are based on starch containing solid substrates can grow and the mass in the usual way the resulting organic acids are processed.
DEF49390D 1921-05-31 1921-05-31 Process for the production of citric acid and other organic acids Expired DE426926C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF49390D DE426926C (en) 1921-05-31 1921-05-31 Process for the production of citric acid and other organic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF49390D DE426926C (en) 1921-05-31 1921-05-31 Process for the production of citric acid and other organic acids

Publications (1)

Publication Number Publication Date
DE426926C true DE426926C (en) 1926-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEF49390D Expired DE426926C (en) 1921-05-31 1921-05-31 Process for the production of citric acid and other organic acids

Country Status (1)

Country Link
DE (1) DE426926C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173055B (en) * 1957-08-14 1964-07-02 Kyowa Hakko Kogyo Kk Process for the production of citric acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173055B (en) * 1957-08-14 1964-07-02 Kyowa Hakko Kogyo Kk Process for the production of citric acid

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