Freitas, Sindelia Alternatives for the intermediate recovery of plasmid DNA: performance, economic viability and environmental impact. [electronic resource] - Biotechnology journal Feb 2009 - 265-78 p. digital Publication Type: Comparative Study; Evaluation Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1860-7314 Standard No.: 10.1002/biot.200800216 doi Subjects--Topical Terms: Chemical Fractionation--methodsEnvironmentEnvironmental Pollution--economicsPlasmids--economicsPortugalUltrafiltration--economics