It is shown that certain zeolites can selectively adsorb representative fermentation inhibitors (5-hydroxymethylfurfural (HMF), furfural and vanillin) from biomass hydrolyzates with minimal loss of sugars improving significantly the ethanol yield of the fermentation process. The potential for recovering the inhibitors for further use as industrially valuable compounds by preferential adsorption on appropriately chosen zeolites is also demonstrated.
Bibliographical noteFunding Information:
The authors acknowledge the financial support from the Biotechnology Institute, University of Minnesota and a Discovery Grant from the Institute on the Environment, University of Minnesota. Partial support for this work is also provided by an NSF award: CBET 085563.
- Lignocellulosic biomass
- Selective adsorption