Premium
The effect of E h on regulatory processes in facultative anaerobes
Author(s) -
Wimpenny J. W. T.
Publication year - 1969
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260110409
Subject(s) - chemostat , aeration , oxygen , facultative , hydrogenase , chemistry , citric acid cycle , biochemistry , cytochrome , enzyme , biology , bacteria , ecology , organic chemistry , genetics
On increasing aeration rate in chemostat cultures of E. coli the redox potential ( E h ) of the culture changes from −l50 mv to +250 mv. During this period only a slight increase in measured dissolved oxygen concentration is observed. It is suggested that E h be used as a control variable for aeration in the oxygen limited growth condition, whilst dissolved oxygen concentration be used as control variable in the presence of excess oxygen. Change in cytochrome b 1 , three tricarboxylic acid cycle enzymes and hydrogenase can be related to culture E h . These changes are discussed.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom