A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes
In the course of their development, industrial biocatalysis processes have to be optimized in small-scale, e. g., within microfluidic bioreactors. Recently, we introduced a novel microfluidic reactor device, which can handle defined reaction compartments of up to 250 μL in combination with magnetic...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-12-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fbioe.2018.00189/full |
| _version_ | 1819023815114489856 |
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| author | Raphael Heinzler Jonas Hübner Thomas Fischöder Lothar Elling Matthias Franzreb |
| author_facet | Raphael Heinzler Jonas Hübner Thomas Fischöder Lothar Elling Matthias Franzreb |
| author_sort | Raphael Heinzler |
| collection | DOAJ |
| description | In the course of their development, industrial biocatalysis processes have to be optimized in small-scale, e. g., within microfluidic bioreactors. Recently, we introduced a novel microfluidic reactor device, which can handle defined reaction compartments of up to 250 μL in combination with magnetic micro carriers. By transferring the magnetic carriers between subsequent compartments of differing compositions, small scale synthesis, and bioanalytical assays can be conducted. In the current work, this device is modified and extended to broaden its application range to the screening and optimization of bioprocesses applying immobilized enzymes. Besides scaling the maximum compartment volume up to 3 mL, a temperature control module, as well as a focused infrared spot were integrated. By adjusting the pump rate, compartment volumes can be accurately dosed with an error <5% and adjusted to the requested temperature within less than a minute. For demonstration of bioprocess parameter optimization within such compartments, the influence of pH, temperature, substrate concentration, and enzyme carrier loading was automatically screened for the case of transferring UDP-Gal onto N-acetylglucosamine linked to a tert-butyloxycarbonyl protected amino group using immobilized β1,4-galactosyltransferase-1. In addition, multiple recycling of the enzyme carriers and the use of increased compartment volumes also allows the simple production of preparative amounts of reaction products. |
| first_indexed | 2024-12-21T04:44:53Z |
| format | Article |
| id | doaj.art-a981b1a323d14094991dd2352257e5b6 |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-12-21T04:44:53Z |
| publishDate | 2018-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-a981b1a323d14094991dd2352257e5b62022-12-21T19:15:36ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852018-12-01610.3389/fbioe.2018.00189413008A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized EnzymesRaphael Heinzler0Jonas Hübner1Thomas Fischöder2Lothar Elling3Matthias Franzreb4Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, GermanyInstitute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, GermanyLaboratory for Biomaterials, Institute for Biotechnology and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, GermanyLaboratory for Biomaterials, Institute for Biotechnology and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, GermanyInstitute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, GermanyIn the course of their development, industrial biocatalysis processes have to be optimized in small-scale, e. g., within microfluidic bioreactors. Recently, we introduced a novel microfluidic reactor device, which can handle defined reaction compartments of up to 250 μL in combination with magnetic micro carriers. By transferring the magnetic carriers between subsequent compartments of differing compositions, small scale synthesis, and bioanalytical assays can be conducted. In the current work, this device is modified and extended to broaden its application range to the screening and optimization of bioprocesses applying immobilized enzymes. Besides scaling the maximum compartment volume up to 3 mL, a temperature control module, as well as a focused infrared spot were integrated. By adjusting the pump rate, compartment volumes can be accurately dosed with an error <5% and adjusted to the requested temperature within less than a minute. For demonstration of bioprocess parameter optimization within such compartments, the influence of pH, temperature, substrate concentration, and enzyme carrier loading was automatically screened for the case of transferring UDP-Gal onto N-acetylglucosamine linked to a tert-butyloxycarbonyl protected amino group using immobilized β1,4-galactosyltransferase-1. In addition, multiple recycling of the enzyme carriers and the use of increased compartment volumes also allows the simple production of preparative amounts of reaction products.https://www.frontiersin.org/article/10.3389/fbioe.2018.00189/fullbioreactormagnetic particlesprocess development and optimizationimmobilized enzymatic reactorautomated microreaction system |
| spellingShingle | Raphael Heinzler Jonas Hübner Thomas Fischöder Lothar Elling Matthias Franzreb A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes Frontiers in Bioengineering and Biotechnology bioreactor magnetic particles process development and optimization immobilized enzymatic reactor automated microreaction system |
| title | A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes |
| title_full | A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes |
| title_fullStr | A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes |
| title_full_unstemmed | A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes |
| title_short | A Compartmented Flow Microreactor System for Automated Optimization of Bioprocesses Applying Immobilized Enzymes |
| title_sort | compartmented flow microreactor system for automated optimization of bioprocesses applying immobilized enzymes |
| topic | bioreactor magnetic particles process development and optimization immobilized enzymatic reactor automated microreaction system |
| url | https://www.frontiersin.org/article/10.3389/fbioe.2018.00189/full |
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