|Title:||Combining single-use stirred bioreactor with standard cross-flow technology in biphasic protein production processes at pilot scale|
|Authors :||Blaschczok, Katharina|
|Published in :||Engineering in Life Sciences|
|Publisher / Ed. Institution :||Wiley|
|License (according to publishing contract) :||Licence according to publishing contract|
|Type of review:||Peer review (publication)|
|Subjects :||Biphasic protein expression; Chinese hamster ovary cells; Hollow fiber module; SEAP (secreted alkaline phosphatase); Stirred single-use bioreactor|
|Subject (DDC) :||660: Chemical engineering|
|Abstract:||The increasing implementation of single-use bioreactors arrived hand-in-hand with the development of new technologies contributing to increased productivity, process flexibility, and additional savings in time and costs. As a result, hollow fiber technology has recently gained renewed interest in upstream processing. Using a Chinese hamster ovary cell line in a biphasic protein production process with chemically defined minimal culture media, we combined Sartorius Stedim's BIOSTAT STR 50 L with GE Healthcare Life Sciences’ reusable Hollow Fiber Cartridge CFP-6-D-55A. After a 3-day feeding growth phase, secretion of the model protein secreted alkaline phosphatase (SEAP) was introduced by replacing the growth medium with production medium using cross-flow filtration. The process was then continued and harvested as a batch with temperature shift. High cell densities exceeding 1 × 107 cells mL−1 were achieved 5 days post inoculation and maximum secreted alkaline phosphatase activities of 24 U mL−1 11 days post inoculation. Our results showed that a further decrease in processing time is possible by reducing the number of diafiltration steps from three to two.|
|Departement:||Life Sciences and Facility Management|
|Organisational Unit:||Institute of Chemistry and Biotechnology (ICBT)|
|Publication type:||Article in scientific journal|
|Appears in Collections:||Publikationen Life Sciences und Facility Management|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.