Journal
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
Volume 41, Issue 4, Pages 398-421Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10826068.2011.613976
Keywords
disposables; high throughput process development; membrane adsorbers; membrane separations; review
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Membrane-based separations are the most ubiquitous unit operations in biotech processes. There are several key reasons for this. First, they can be used with a large variety of applications including clarification, concentration, buffer exchange, purification, and sterilization. Second, they are available in a variety of formats, such as depth filtration, ultrafiltration, diafiltration, nanofiltration, reverse osmosis, and microfiltration. Third, they are simple to operate and are generally robust toward normal variations in feed material and operating parameters. Fourth, membrane-based separations typically require lower capital cost when compared to other processing options. As a result of these advantages, a typical biotech process has anywhere from 10 to 20 membrane-based separation steps. In this article we review the major developments that have occurred on this topic with a focus on developments in the last 5 years.
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