Measurement of volumetric (OUR) and determination of specific (qO2) oxygen uptake rates in animal cell cultures.

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 Biotechnol

journal_title

Journal of biotechnology

authors

Ruffieux PA,von Stockar U,Marison IW

doi

10.1016/s0168-1656(98)00046-7

subject

Has Abstract

pub_date

1998-08-12 00:00:00

pages

85-95

issue

2

eissn

0168-1656

issn

1873-4863

pii

S0168-1656(98)00046-7

journal_volume

63

pub_type

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