Effect of oxygen on ubiquinone-10 production by Paracoccus denitrificans |
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| Authors: | Petr Kaplan Igor Kučera Vladimír Dadák |
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| Institution: | (1) Department of Biochemistry, Faculty of Medicine, Masaryk University, CZ-662 43 Brno, Czech Republic;(2) Department of Biochemistry, Faculty of Science, Masaryk University, CZ-611 37 Brno, Czech Republic |
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| Abstract: | Summary Ubiquinone-10 (Q10) production was measured in batch cultures of Paracoccus denitrificans grown for 8 h at increasing oxygen concentrations (0–21 % O2 in the sparging gas). Whereas the cellular level of Q10 decreased monotonically from 1.2 to 0.5  mol/g d.w., the total yield of Q10 was maximal at 2.5 % O2 and amounted to 350 nmol (0.3 mg) per L of culture. |
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