Escherichia coli modular coculture system for resveratrol glucosides production

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In bio-based fermentation, the overall bioprocess efficiency is significantly affected by the metabolic burden associated with the expression of complete biosynthetic pathway as well as precursor and cofactor generating enzymes into a single microbial cell. To attenuate such burden by compartmentalizing the enzyme expression, recently synthetic biologists have used coculture or poly-culture techniques for biomolecules synthesis. In this paper, coculture system of two metabolically engineered Escherichia coli populations were employed which comprises upstream module expressing two enzymes converting para-coumaric acid into resveratrol and the downstream module expressing glucosyltransferase to convert the resveratrol into its glucosidated forms; polydatin and resveratroloside. Upon optimization of the initial inoculum ratio of two E. coli populations, 92 mg resveratrol glucosides/L (236 µM) was produced i.e. achieving 84% bioconversion from 280 µM of p-coumaric acid in 60 h by 3 L fed batch fermentor. This is the report of applying coculture system to produce resveratrol glucosides by expressing the aglycone formation pathway and sugar dependent pathway into two different cells.
Original languageEnglish
Article number75
JournalWorld Journal of Microbiology and Biotechnology
Volume34
Issue number6
Number of pages13
ISSN0959-3993
DOIs
Publication statusPublished - 2018
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Biotransformation, Coculture, Glycosylation, Polyphenols, Polydatin, Resveratroloside

ID: 148307342