Enzymatic isomerization of glucose and xylose in ionic liquids

Tim Johannes Bjarki Ståhlberg, John Woodley, Anders Riisager

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Abstract

Glucose isomerase has been found for the first time to catalyze the isomerization of glucose to fructose in the ionic liquid N, N-dibutylethanolammonium octanoate (DBAO). Isomerization was achieved at temperatures of 60-80 degrees C although a substantial amount of mannose was formed at elevated temperatures via the Lobry-de Bruyn-van Ekenstein transformation. Complete recovery of the sugars after reaction was achieved by extraction with aqueous HCl, thus making the protocol attractive for continuous operation.
Original languageEnglish
JournalCatalysis Science & Technology
Volume2
Issue number2
Pages (from-to)291-295
ISSN2044-4753
DOIs
Publication statusPublished - 2012

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