1. From a Sequential Chemo-Enzymatic Approach to a Continuous Process for HMF Production from Glucose.
- Author
-
Gimbernat, Alexandra, Guehl, Marie, Lopes Ferreira, Nicolas, Heuson, Egon, Dhulster, Pascal, Capron, Mickael, Dumeignil, Franck, Delcroix, Damien, Girardon, Jean-Sébastien, and Froidevaux, Rénato
- Subjects
- *
GLUCOSE , *BIOMASS , *CATALYSIS - Abstract
Notably available from the cellulose contained in lignocellulosic biomass, glucose is a highly attractive substrate for eco-efficient processes towards high-value chemicals. A recent strategy for biomass valorization consists on combining biocatalysis and chemocatalysis to realise the so-called chemo-enzymatic or hybrid catalysis. Optimisation of the glucose conversion to 5-hydroxymethylfurfural (HMF) is the object of many research efforts. HMF can be produced by chemo-catalyzed fructose dehydration, while fructose can be selectively obtained from enzymatic glucose isomerization. Despite recent advances in HMF production, a fully integrated efficient process remains to be demonstrated. Our innovative approach consists on a continuous process involving enzymatic glucose isomerization, selective arylboronic-acid mediated fructose complexation/transportation, and chemical fructose dehydration to HMF. We designed a novel reactor based on two aqueous phases dynamically connected via an organic liquid membrane, which enabled substantial enhancement of glucose conversion (70%) while avoiding intermediate separation steps. Furthermore, in the as-combined steps, the use of an immobilized glucose isomerase and an acidic resin facilitates catalyst recycling. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF