Copper effect on the growth kinetics of Methylococcus capsulatus (bath) |
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| Authors: | A. G. Zhivotchenko E. S. Nikonova M. H. Jørgensen |
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| Affiliation: | (1) Center for Process Biotechnology, Technical University of Denmark, 2800 Lyngby, DK, Denmark |
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| Abstract: | Summary Bistat and pH-auxostat fermentations have been used to study the effect of Cu++ on Methylococcus capsulates (Bath) growing on natural gas. An optimum for growth rate and yield was found to be within the range of 3–6  mole Cu/g dry cells. The cells absorb quantitatively Cu++ from surrounding broth until 6 mole Cu/g dry cells has been reached. Also the effect of copper on sMMO activity has been investigated. A complete suppressing of sMMO is obtained with 1.5 M Cu/g dry cells. |
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