We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Combining Chemical and Biological Catalysis for the Conversion of Hemicelluloses: Hydrolytic Hydrogenation of Xylan to Xylitol.
- Authors
Hilpmann, Gerd; Steudler, Susanne; Ayubi, Mick Miro; Pospiech, Arne; Walther, Thomas; Bley, Thomas; Lange, Rüdiger
- Abstract
The conversion of xylan to xylitol is commonly realized via the two separate process steps hydrolysis and hydrogenation (or fermentation). Recent research activities aim at developing one-pot processes to facilitate this conversion to save resources and operation time. To avoid hazardous chemicals like liquid acids for the initial xylan hydrolysis, enzymes are a suitable green alternative. A series of experiments are discussed wherein process conditions for chemical conversion were adjusted to more enzyme-friendly reaction conditions to overcome xylose-induced product inhibition by direct hydrogenation of sugar to xylitol. A novel combination of enzymes and precious metal catalyst (Ru/C) in an one-pot process is demonstrated. Based on these results, limiting factors and potentially advantageous process parameters as well as catalyst combinations are discussed.Graphical Abstract:
- Subjects
HYDROGENATION; CELLULOSE; XYLANS; XYLITOL; HYDROLYSIS; METAL catalysts
- Publication
Catalysis Letters, 2019, Vol 149, Issue 1, p69
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-018-2598-7