Abstract:
:Oxygen is a key substrate in animal cell metabolism. It has been reported that the oxygen uptake rate (OUR) is a good indicator of cellular activity, and even under some conditions, a good indicator of the number of viable cells. The measurement of OUR is difficult due to many different reasons. In particular, the very low specific consumption rate (0.2 x 10(-12) mol cell h-1), the sensitivity of the cells to variations in dissolved oxygen concentration and the difficulty to provide oxygen without damaging the cells are problems which must be taken into account for the development of OUR measurement methods. Different solutions based on an oxygen balance on either the liquid phase or around the entire reactor, and with a variable or stable concentration of dissolved oxygen have been reported. The accuracy of the OUR measurements and the required analytical devices are very different from method to method.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Ruffieux PA,von Stockar U,Marison IWdoi
10.1016/s0168-1656(98)00046-7subject
Has Abstractpub_date
1998-08-12 00:00:00pages
85-95issue
2eissn
0168-1656issn
1873-4863pii
S0168-1656(98)00046-7journal_volume
63pub_type
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