Abstract
Parallel operated milliliter-scale stirred tank bioreactors were applied for recombinant protein expression studies in simple batch experiments without pH titration. An enzymatic glucose release system (EnBase), a complex medium, and the frequently used LB and TB media were compared with regard to growth of Escherichia coli and recombinant protein expression (alcohol dehydrogenase (ADH) from Lactobacillus brevis and formate dehydrogenase (FDH) from Candida boidinii). Dissolved oxygen and pH were recorded online, optical densities were measured at-line, and the activities of ADH and FDH were analyzed offline. Best growth was observed in a complex medium with maximum dry cell weight concentrations of 14 g L−1. EnBase cultivations enabled final dry cell weight concentrations between 6 and 8 g L−1. The pH remained nearly constant in EnBase cultivations due to the continuous glucose release, showing the usefulness of this glucose release system especially for pH-sensitive bioprocesses. Cell-specific enzyme activities varied considerably depending on the different media used. Maximum specific ADH activities were measured with the complex medium, 6 h after induction with IPTG, whereas the highest specific FDH activities were achieved with the EnBase medium at low glucose release profiles 24 h after induction. Hence, depending on the recombinant protein, different medium compositions, times for induction, and times for cell harvest have to be evaluated to achieve efficient expression of recombinant proteins in E. coli. A rapid experimental evaluation can easily be performed with parallel batch operated small-scale stirred tank bioreactors.
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Bräutigam S, Bringer-Meyer S, Weuster-Botz D (2007) Asymmetric whole cell biotransformations in biphasic ionic liquid/water-systems by use of recombinant Escherichia coli with intracellular cofactor regeneration. Tetrahedron Asymmetr 18:1883–1887
Bräutigam S, Dennewald D, Schürmann M, Lutje-Spielberg J, Pintner WR, Weuster-Botz D (2009) Whole-cell biocatalysis: evaluation of new hydrophobic ionic liquids for efficient asymmetric reduction of prochiral ketones. Enzyme Microb Technol 45:310–316
Hoefel T, Wittmann E, Reinecke L, Weuster-Botz D (2010) Reaction engineering studies for the production of 2-hydroxyisobutyric acid with recombinant Cupriavidus necator H 16. Appl Microbiol Biotechnol 88:477–484
Hortsch R, Weuster-Botz D (2010a) Power consumption and maximum energy dissipation in a milliliter-scale bioreactor. Biotechnol Prog 26:595–599
Hortsch R, Weuster-Botz D (2010b) Milliliter-scale stirred tank reactors for the cultivation of microorganisms. Adv Appl Microbiol 73:59–80
Hortsch R, Stratmann A, Weuster-Botz D (2010a) New milliliter-scale stirred tank bioreactors for the cultivation of mycelium forming microorganisms. Biotechnol Bioeng 106:443–451
Hortsch R, Krispin H, Weuster-Botz D (2010b) Process performance of parallel bioreactors for batch cultivation of Streptomyces tendae. Bioprocess Biosyst Eng. doi:10.1007/s00449-010-0471-1
Knorr B, Schlieker H, Hohmann HP, Weuster-Botz D (2007) Scale-down and parallel operation of the riboflavin production process with Bacillus subtilis. Biochem Eng J 33:263–274
Krause M, Ukkonen K, Haataja T, Ruottinen M, Glumoff T, Neubauer A, Neubauer P, Vasala A (2010) A novel fed-batch based cultivation method provides high cell-density and improves yield of soluble recombinant proteins in shaken cultures. Microb Cell Fact 9:11
Kusterer A, Krause C, Kaufmann K, Arnold M, Weuster-Botz D (2008) Fully automated single-use stirred-tank bioreactors for parallel microbial cultivations. Bioprocess Biosyst Eng 31:207–215
Nakamura K, Yamanaka R, Matsuda T, Harada T (2003) Recent developments in assymetric reduction of ketones with biocatalysts. Tetrahedron Asymmetr 14:2659–2681
Panula-Perälä J, Siurkus J, Vasala A, Wilmanowski R, Casteleijn MG, Neubauer P (2008) Enzyme controlled glucose auto-delivery for high cell density cultivations in microplates and shake flasks. Microb Cell Fact 7:31
Phue JN, Noronha SB, Hattacharyya R, Wolfe AJ, Shiloach J (2005) Glucose metabolism at high density growth of E. coli B and E. coli K: differences in metabolic pathways are responsible for efficient glucose utilization in E. coli B as determined by microarrays and northern blot analyses. Biotechnol Bioeng 90:805–820
Puskeiler R, Kaufmann K, Weuster-Botz D (2005a) Development, parallelization, and automation of a gas-inducing milliliter-scale bioreactor for high-throughput bioprocess design (HTBD). Biotechnol Bioeng 89:512–523
Puskeiler R, Kusterer A, John GT, Weuster-Botz D (2005b) Miniature bioreactors for automated high-throughput bioprocess design (HTBD): reproducibility of parallel fed-batch cultivations with Escherichia coli. Biotechnol Appl Biochem 42:227–235
Sambrook J, Russell DW (2001) Molecular cloning: a laboratory manual. Cold Spring Harbor Laboratory Press, Cold Spring Harbor
Siurkus J, Panula-Perälä J, Horn U, Kraft M, Rimseliene R, Neubauer P (2010) Novel approach of high cell density recombinant bioprocess development: optimisation and scale-up from microlitre to pilot scales while maintaining the fed-batch cultivation mode of E. coli cultures. Microb Cell Fact 9:35
Vester A, Hans M, Hohmann HP, Weuster-Botz D (2009) Discrimination of riboflavin producing Bacillus subtilis strains based on their fed-batch process performances on a millilitre scale. Appl Microbiol Biotechnol 84:71–76
Weuster-Botz D (2005) Parallel reactor systems for bioprocess development. Adv Biochem Eng Biotechnol 92:125–144
Weuster-Botz D, Puskeiler R, Kusterer A, Kaufmann K, John GT, Arnold M (2005) Methods and milliliter scale devices for high-throughput bioprocess design. Bioprocess Biosyst Eng 28:109–119
Acknowledgments
The authors gratefully acknowledge Peter Neubauer (TU Berlin, Germany) and Antje Neubauer (BioSilta, Oulu, Finland) for helpful discussions with the EnBase experiments. Furthermore, the authors thank BioSilta for kindly providing the EnBase medium.
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Hortsch, R., Weuster-Botz, D. Growth and recombinant protein expression with Escherichia coli in different batch cultivation media. Appl Microbiol Biotechnol 90, 69–76 (2011). https://doi.org/10.1007/s00253-010-3036-y
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DOI: https://doi.org/10.1007/s00253-010-3036-y