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Título: | Use of room temperature ionic liquids for the selective fractionation of bioactive ketoses from aldoses |
Autor: | Carrero-Carralero, Cipriano CSIC ORCID; Ruiz Aceituno, Laura CSIC ORCID ; Ramos, Lourdes CSIC ORCID ; Sanz, M. Luz CSIC ORCID ; Moreno, F. Javier CSIC ORCID | Palabras clave: | Fractionation Aldoses Ketoses Room temperature ionic liquids Activated charcoal |
Fecha de publicación: | 2015 | Editor: | Elsevier | Citación: | Separation and Purification Technology 149: 140-145 (2015) | Resumen: | This work deals with the effective fractionation of bioactive ketoses, i.e. lactulose and tagatose, from their corresponding aldoses, lactose and galactose, in equimolar binary mixtures driven by room temperature ionic liquids, i.e. 1-ethyl-3-methylimidazolium dicyanamide ([EMIM][DCA]) and 1-butyl-3-methylimidazolium methyl sulfate ([BMIM][MeSO<inf>4</inf>]), respectively. Under assayed conditions, tagatose was found to be 6-fold more soluble on [BMIM][MeSO<inf>4</inf>] than galactose; meanwhile lactulose was 3 times more soluble than lactose on [EMIM][DCA]. As an application example in a more complex sample, a lactose isomerization mixture containing in addition lactulose and monosaccharides was enriched in this ketose by using [EMIM][DCA]. Carbohydrates were then successfully recovered from the ionic liquid following an activated charcoal-based treatment. Overall, lactulose content was enriched from a 24% in the initial isomerization reaction mixture to a 62% in the purified sample. These experimental results demonstrated the potential of ionic liquids as green alternative solvents for the selective fractionation of bioactive ketoses from their corresponding aldoses in food and beverage production. | Versión del editor: | https://doi.org/10.1016/j.seppur.2015.05.016 | URI: | http://hdl.handle.net/10261/117809 | DOI: | 10.1016/j.seppur.2015.05.016 | Identificadores: | doi: 10.1016/j.seppur.2015.05.016 issn: 1383-5866 e-issn: 1873-3794 |
Aparece en las colecciones: | (IQOG) Artículos (CIAL) Artículos |
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roomtemperatures.pdf | 181,74 kB | Adobe PDF | Visualizar/Abrir |
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