A multisensor array for visualizing continuous state transitions in biopharmaceutical processes using principal component analysis
详细信息 查看全文
- 作者：Mandenius ; Carl-Fredrik ; Hagman ; Anders ; Dunå ; s ; Finn ; Sundgren ; Hans ; Lundströ ; m ; Ingemar
- 关键词：bioprocess ; monitoring ; multisensor array ; recombinant growth hormone ; recombinant factor VIII ; principal component analysis
- 刊名：Biosensors and Bioelectronics
- 出版年：1998
- 出版时间：February 1, 1998
- 年：1998
- 卷：13
- 期：2
- 页码：193-199
- 全文大小：428 K
文摘
An array of sensors with varying sensitivities, a so-called multisensor array, has been used for monitoring the growth and production states of biopharmaceutical processes. The sensor array produced continuous and characteristic response patterns from the processes due to the differences of the sensors. By analysing these patterns with the multivariate method principal component analysis, the state as well as the change of state of the bioprocesses could be visualized. The sensors used in the array were well-known semiconductor and optical gas sensors and the array was connected in an on-line set-up to the bioreactor's headspace effluent. The sensor array was applied to the monitoring of two recombinant bioprocesses, the production of human growth hormone in Escherichia coli and human factor VIII in Chinese ovary hamster cells. The sensor array could clearly visualize the characteristic transitions during the main growth or production phases of these two bioprocesses.