DE886517C - Process for the separation of penicillin and other mykoins from the culture solutions - Google Patents
Process for the separation of penicillin and other mykoins from the culture solutionsInfo
- Publication number
- DE886517C DE886517C DESCH3170D DESC003170D DE886517C DE 886517 C DE886517 C DE 886517C DE SCH3170 D DESCH3170 D DE SCH3170D DE SC003170 D DESC003170 D DE SC003170D DE 886517 C DE886517 C DE 886517C
- Authority
- DE
- Germany
- Prior art keywords
- penicillin
- separation
- mykoins
- culture solutions
- culture
- 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
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
Verfahren zur Abtrennung von Penicillin und anderen Mykoinen aus den Kulturlösungen Es ist bekannt, daß sich Penicillin aus seinen Kulturlösungen bei pii a in organische Lösungsmittel, wie Äther, Amylacetat, Chloroform u. a., überführen läßt. Die Schwierigkeit dieser Extraktion beruht nur darin, daß sie sehr schnell vorgenommen werden muß, da Penicillin bei pH 2 unbeständig ist.Process for the separation of penicillin and other mykoins from the Culture solutions It is known that penicillin from its culture solutions Convert pii a into organic solvents such as ether, amyl acetate, chloroform and others leaves. The only difficulty with this extraction is that it is very quick must be made because penicillin is unstable at pH 2.
Von E. P. Abraham, E. Chain und Mitarb., The Lancet 1941, S. 179, wird in der Weise vorgegangen, daß man die Kulturlösung tropfenweise durch eine große Kolonne mit Amylacetat fallen läßt, wobei kurz vor dem Eintropfen die Ansäuerung der Lösung mit Phosphorsäure vorgenommen wird. Dieses Verfahren ist für die Extraktion großer Mengen Kulturflüssigkeit nicht sehr geeignet, da man große Extraktionskolonnen braucht und die Ansäuerung der Lösung einer dauernden Kontrolle unterworfen werden muß.By E. P. Abraham, E. Chain et al., The Lancet 1941, p. 179, the procedure is in such a way that the culture solution is dropwise through a large column with amyl acetate drops, with acidification shortly before the dropping the solution is made with phosphoric acid. This procedure is for extraction Large amounts of culture liquid are not very suitable, since large extraction columns are used and the acidification of the solution must be subjected to constant control got to.
Es wurde nun gefunden, daß man das Entziehen des Penicillins aus der wäßrigan Phase leicht vornehmen kann, wenn man die Kulturlösung mit den zur Extraktion verwendeten Lösungsmitteln zu einer Emulsion verrührt, darauf bis auf den geeigneten pH-Wert ansäuert, absetzen läßt und die Lösungsmittelschicht von der wäßrigen Phase abtrennt.It has now been found that the withdrawal of penicillin from the Aqueous phase can easily be made if one uses the culture solution for extraction The solvents used are mixed into an emulsion, except for the appropriate one pH acidified, allowed to settle and the solvent layer from the aqueous phase separates.
Es hat sich herausgestellt, daß hierbei kaum Verluste an Penicillin eintreten.It has been found that there is hardly any loss of penicillin in this case enter.
Das Verfahren hat den Vorzug, schnell und lösungsmittelsparend zu arbeiten, und das schnelle Verarbeiten der Wirkstofflösungen ist bei der Empfindlichkeit des Penicillins von ausschlaggebender Bedeutung, um die Wirksamkeitsverluste niedrig zu halten.The method has the advantage of being quick and solvent-saving too work, and the rapid processing of the drug solutions is in the area of sensitivity of Penicillins are vital to keep the efficacy losses low to keep.
Man kann auch so vorgehen, daß man zur schnelleren Erzielung einer Emulsion einen geeigneten Emulgator hinzusetzt, der entweder durch das Ansäuern oder danach durch geeignete Zusätze unwirksam gemacht wird und dann die Schichtentrennung nicht mehr behindert.Another way of doing this is to get a A suitable emulsifier is added to the emulsion, either by acidification or is then rendered ineffective by suitable additives and then the delamination no longer disabled.
Das Verfahren läßt sich nicht nur bei Penicillin, sondern auch bei anderen Mykoinen anwenden, die aus der wäßrigen Phase durch Extraktion mittels in Wasser schwerlöslicher Lösungsmittel gewonnen werden.The procedure can be used not only with penicillin, but also with use other mykoins, which are extracted from the aqueous phase by means of in Water sparingly soluble solvents are obtained.
Beispiel Man bringt die Kulturlösung mit etwa einem Drittel an Amylacetat zusammen und verrührt zu einer Emulsion. Dann gibt man langsam io°/oige Phosphor-oder Arsensäure hinzu, bis das p#I des Gemisches -q beträgt. Dabei muß man darauf achten, daß die Temperatur des Gemischesbe im Ansäuern möglichst unterhalb -f- 4° liegt. Nach dem Ansäuern läßt man die beiden Schichten sich im Kühlraum absetzen und trennt aus der Amylacetatschicht die in ihr suspendierten Schwebstoffe durch Zentrifugieren ab. Beim Arbeiten in dieser Weise treten kaum Verluste an Penicillin auf. So wurde in einem Falle von 540o eingesetzten Einheiten 5175 wiedergefunden, bei einem anderen Versuch von 1140 Einheiten iog5.Example The culture solution is brought with about a third of amyl acetate together and stirred into an emulsion. Then slowly add 10% phosphorus or Add arsenic acid until the p # I of the mixture is -q. One must pay attention to that the temperature of the mixture during acidification is as low as possible below -f- 4 °. After acidification, the two layers are allowed to settle in the cold room and are separated the suspended matter from the amyl acetate layer by centrifugation away. When working in this way, there is hardly any loss of penicillin. So became 5175 found in one case of 540o inserted units, in another Attempted 1140 units of iog5.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH3170D DE886517C (en) | 1945-01-30 | 1945-01-30 | Process for the separation of penicillin and other mykoins from the culture solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH3170D DE886517C (en) | 1945-01-30 | 1945-01-30 | Process for the separation of penicillin and other mykoins from the culture solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE886517C true DE886517C (en) | 1953-08-13 |
Family
ID=7423621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH3170D Expired DE886517C (en) | 1945-01-30 | 1945-01-30 | Process for the separation of penicillin and other mykoins from the culture solutions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE886517C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2754897A1 (en) * | 1976-12-13 | 1978-06-15 | Ferodo Sa | FAN ARRANGEMENT WITH MOTOR DRIVE |
-
1945
- 1945-01-30 DE DESCH3170D patent/DE886517C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2754897A1 (en) * | 1976-12-13 | 1978-06-15 | Ferodo Sa | FAN ARRANGEMENT WITH MOTOR DRIVE |
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