Correlation of redox potential with state variables in cultures under controlled dissolved oxygen concentration and pH

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Title
Correlation of redox potential with state variables in cultures under controlled dissolved oxygen concentration and pH
Author(s)
Tae Ho Lee; Yong Keun Chang; Bong Hyun Chung; Young Hoon Park
Bibliographic Citation
Biotechnology Progress, vol. 14, pp. 959-962
Publication Year
1998
Abstract
In batch cultures for L-ornithine production in which dissolved oxygen concentration and pH were closely controlled, time changes of redox potential were observed in connection with the profiles of cell, glucose, and ornithine concentrations. It was found that the redox potential profile had four different phases reflecting the physiological state of the culture and that it was closely related to cell concentration change. Effects of glucose and ornithine on the redox potential were identified in a separate series of experiments. On the basis of the experimental results, a correlation of redox potential to glucose, cell, and ornithine concentrations has been proposed. The proposed correlation can be used for on-line estimation of ornithine concentration from on-line data of redox potential, glucose concentration, and cell concentration.
ISSN
8756-7938
Publisher
Wiley
DOI
http://dx.doi.org/10.1021/bp980085w
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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