کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
640575 1456970 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of room temperature ionic liquids for the selective fractionation of bioactive ketoses from aldoses
ترجمه فارسی عنوان
استفاده از مایعات یونی دمای اتاق برای تقسیم بندی انتخابی کتوز های زیست فعال از آلدوها
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی


• ILs are a useful and green alternative for fractionation of ketoses from aldoses.
• BMIM[meso4] is useful for the selective fractionation of tagatose from galactose.
• EMIM[DCA] is useful for the enrichment of lactulose in its product of synthesis.
• Carbohydrates are effectively extracted from ILs by an activated charcoal method.

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][MeSO4]), respectively. Under assayed conditions, tagatose was found to be 6-fold more soluble on [BMIM][MeSO4] 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.

Effective fractionation of ketoses from aldoses using ionic liquids and subsequent extraction with active charcoal treatment.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 149, 27 July 2015, Pages 140–145
نویسندگان
, , , , ,