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Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
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JoVE Journal Chemistry
Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

DOI:
10.3791/53944-v

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09:27 min

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April 22, 2016

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, , ,
1Department of Chemical Engineering,Konkuk University, 2Department of Chemical Engineering,University of Michigan

Chapters

  • 00:05Title
  • 00:45Whole-cell Biocatalysts Preparation
  • 02:05Biosynthesis of L-xylulose by Coupling E. coliHjLAD and E. coliSpNOx for Cofactor Regeneration
  • 03:51Immobilization of Recombinant Whole-cell Catalysts in Calcium Alginate Beads
  • 06:25Stability Assay of Immobilized Biocatalysts for L-xylulose Production
  • 07:15Results: Co-immobilization of Whole-cell Biocatalysts Improves Reusability
  • 08:55Conclusion

Summary

Automatic Translation

Automatic Translation

Presented is the protocol for co-immobilizing whole-cell biocatalysts for cofactor regeneration and improved reusability, using the production of L-xylulose as an example. The cofactor regeneration is achieved by coupling two Escherichia coli strains expressing functionally complementary enzymes; the whole-cell biocatalyst immobilization is achieved by cell encapsulation in calcium alginate beads.

Tags

Keywords: ImmobilizationMulti-biocatalystsAlginate BeadsCofactor RegenerationReusabilityWhole Cell Biocatalytic SystemBiocatalystsStabilityCofactor RegeneratingE. ColiSpNOxHjLADNADH OxidaseL-arabinitol DehydrogenaseRecombinantIPTGTris-HCl BufferNAD+L-arabinitolL-xylulose

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