Die Verteilung von RNA und Plasmid-DNA wurde in einem inversmizellaren Zweiphasensystem bestehend aus Trioctylmethylammoniumchlorid (TOMAC) und Isooctan untersucht.Die Auswirkung verschiedener Salze und Alkohole auf den Transfer der Nukleinsäuren wurde vor allem unter dem Gesichtspunkt einer hohen Wiederfindung der Plasmid-DNA nach der Rückextraktion betrachtet. Systeme, die eine Trennung von Plasmid-DNA und RNA ermöglichen, wurden eingesetzt, um RNA aus bakteriellem Klarlysat zu entfernen.
The separation of structurally related impurities from pharmaceutical plasmid DNA by highly scalable purification techniques is a challenge for biochemical engineering. Next to RNA, proteins, and lipopolysaccharides, the chromosomal DNA of the plasmid replicating host has to be removed. Here, we describe the application of reverse micellar extraction for the separation of chromosomal from plasmid DNA. By applying different procedures for alkaline lysis, bacterial lysates with different amounts of chromosomal DNA were generated. A reverse micellar extraction step enabled us to deplete the concentration of this impurity below the required level of 50 mg g(-1) of plasmid DNA with almost complete plasmid recovery.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.