Abstract
In this study, a facultative bacterium that converts fumarate to succinate at a high yield was isolated. The yield of bioconversion was enhanced about 1.2 times by addition of glucose into culture medium at an initial concentration of 6 g/L. When the initial cell density was high (2 g/L), the succinate produced at pH 7.0 for initial fumarate concentrations of 30, 50, 80, and 100 g/L were 29.3,40.9,63.6, and 82.5 g/L, respectively, showing an increase with the initial fumarate concentration. The high yield of 96.8%/mole of fumarate in just 4 h was obtained at the initial fumarate concentration of 30 g/L. Comparing these values to those obtained with low cell culture (0.2 g/L), we found that the amount of succinate produced was similar, but the production rate in the high cell culture was about three times higher than was the case in the low cell culture. This strain converted fumarate to succinate at a rate of 3.5 g/L ยท h under the sparge of CO2.
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ยฉ 1999 Springer Science+Business Media New York
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Ryu, HW., Kang, KH., Yun, JS. (1999). Bioconversion of Fumarate to Succinate Using Glycerol as a Carbon Source. In: Davison, B.H., Finkelstein, M. (eds) Twentieth Symposium on Biotechnology for Fuels and Chemicals. Applied Biochemistry and Biotechnology. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-4612-1604-9_46
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DOI: https://doi.org/10.1007/978-1-4612-1604-9_46
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-1-4612-7214-4
Online ISBN: 978-1-4612-1604-9
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