Abstract
The cultivation of the yeastTrigonopsis variabilis producingd-amino-acid oxidase (an enzyme participating in the transformation of cephalosporin C into 7-aminocephalosporanic acid for the production of β-lactam antibiotics) was controlled by changes of dissolved oxygen tension and extended fermentation times. The production technology was optimized on a laboratory scale and scale-up parameters were identified.
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Abbreviations
- CER:
-
CO2 evaluation rate. L/min CO2 per L working volume
- DAO:
-
d-amino acid oxidase
- DOT:
-
dissolved oxygen tension, %
- μ:
-
specific growth rate, 1/h
- OUR:
-
oxygen uptake rate, L/min O2 per L working volume
- π:
-
specific production rate, U/h per g dry biomass
- RQ:
-
respiration quotient
- X :
-
dry biomas, g/L
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Kujan, P., Prell, A., Ŝafář, H. et al. D-Amino-acid oxidase—an improved production of the enzyme by the yeastTrigonopsis variabilis in a laboratory fermentor. Folia Microbiol 46, 427–431 (2001). https://doi.org/10.1007/BF02814434
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DOI: https://doi.org/10.1007/BF02814434