High-yield production of dihydrogen from xylose by using a synthetic enzyme cascade in a cell-free system

Angew Chem Int Ed Engl. 2013 Apr 22;52(17):4587-90. doi: 10.1002/anie.201300766. Epub 2013 Mar 19.

Abstract

Let enzymes work: H2 was produced from xylose and water in one reactor containing 13 enzymes (red). By using a novel polyphosphate xylulokinase (XK), xylose was converted into H2 and CO2 with approaching 100 % of the theoretical yield. The findings suggest that cell-free biosystems could produce H2 from biomass xylose at low cost. Xu5P = xylulose 5-phosphate, G6P = glucose 6-phosphate.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acid Anhydride Hydrolases / chemistry
  • Aldose-Ketose Isomerases / chemistry
  • Biocatalysis
  • Cell-Free System / chemistry*
  • Cell-Free System / enzymology
  • Enzymes, Immobilized / chemistry*
  • Hydrogen / chemistry*
  • Hydrogenase / chemistry
  • Xylose / chemistry*

Substances

  • Enzymes, Immobilized
  • Hydrogen
  • Xylose
  • Hydrogenase
  • Acid Anhydride Hydrolases
  • endopolyphosphatase
  • Aldose-Ketose Isomerases
  • xylose isomerase