An alternative method of large scale plasma fractionation for the lsolation of serum albumin
- 1 February 1975
- journal article
- Published by Springer Nature in Annals of Hematology
- Vol. 30 (2) , 121-134
- https://doi.org/10.1007/bf01633966
Abstract
Human plasma may be separated into five fractions using the method described byCobn in 1946. Although there are several drawbacks to alcohol precipitation, especially in albumin isolation, it is still used throughout the world. This paper describes an alternative procedure for albumin isolation from plasma or albumin-containing plasma fractions using a combined heat fractionation/polyethylene glycol precipitation method. No polyethylene glycol is detected in the final product which is immunoelectrophoretically 100% pure, salt poor, heat resistant during pasteurization, and stable during long-term room temperature storage. The yield is at least 90% of the original plasma albumin. In comparison with the Cohn method, fractionation time and expense are significantly reduced. Menschliches Plasma kann mittles der 1946 vonCohn und Mittarbeitern beschriebenen Methode in fünf Fraktionen zerlegt werden. Trotz zahlericher Nachteile bei der Proteinpräzipitation mit Alkohol wird das Cohnsche Fraktionierungsverfahren noch heute in der ganze Welt verwandt. Die vorliegende Arbeit beschreibt eine Alternative zur Isolierung von Albumin aus Plasma oder plasmahaltigen Fraktionen mittels einer kombinierten Hitze/PEG-Fraktionierungsmethode. Im Endprodukt, das immunelektrophoretisch zu 100% aus Albumin bestehr, salzarm und hitzestabil ist, ist PEG nicht nachweisbar. Die Ausbeute beträgt mindestens 90% des urprünglich vorhandenen Albumins. Im Vergleich zur Cohn-Methode sind Fraktionierungszeit und Kosten erheblich geringer.Keywords
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