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Hybrid Catalysis: A Suitable Concept for the Valorization of Biosourced Saccharides to Value-Added Chemicals

Abstract : Through biomass valorization, sugars can become a major carbon resource for the production of fuels and chemicals by using catalysis. Hybrid catalysis, a direct combination of biocatalysis and chemocatalysis, may yield innovative solutions. 5- Hydroxymethylfurfural (5-HMF) is a platform molecule derived from glucose, for which fructose is a key intermediate. To overcome the thermodynamic enzymatic equilibrium between glucose and fructose, two methodologies based on hybrid catalysis are described herein. In the first method, the glucose isomerase and fructose-to-5-HMF dehydration chemocatalysts are simultaneously implemented in a multiphasic way to imply the complexation and transport of fructose. The second method proposes a route through sorbitol, obtained by the hydrogenation of glucose. Sorbitol is then enzymatically converted into fructose, whereas regeneration of the cofactor is performed in situ with an organometallic complex as a chemocatalyst.
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https://hal-ifp.archives-ouvertes.fr/hal-01582182
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Submitted on : Tuesday, September 5, 2017 - 5:01:36 PM
Last modification on : Wednesday, March 23, 2022 - 3:51:19 PM

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Alexandra Gimbernat, Marie Guehl, Mickaël Capron, Renato Froidevaux, Jean-Sébastien Girardon, et al.. Hybrid Catalysis: A Suitable Concept for the Valorization of Biosourced Saccharides to Value-Added Chemicals. ChemCatChem, Wiley, 2017, 9 (12), pp.2080 - 2084. ⟨10.1002/cctc.201601633⟩. ⟨hal-01582182⟩

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