hydrothermal treatment of sugars to obtain high-value products

Clicks: 252
ID: 141083
2020
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Abstract
In the present work, the degradation of different sugars, such as lactose, cellobiose, sucrose, galactose, glucose, fructose and xylose, was performed in batch reactor with subcritical water at temperature of 250°C and reaction time of 1, 5 and 15 min. The yields of water-soluble phase, acetonesoluble phase, solid residue and gases were determined. The influence of reaction time and difference in sugar structure on the yield of phases and conversion of sugars was studied. Sugars with keto- and furanose structures were less stable than aldo- and pyranose-sugars. The most stable sugars were aldo-hexoses (galactose and glucose). The water-soluble fraction, which is composed of sugars and their derivatives, was analyzed by HPLC using RI and UV detectors. The detected degradation products by HPLC were: 5-hydroxymethylfurfural (5-HMF), furfural, erythrose, sorbitol, 1,6-anhydroglucose, glycolaldehyde, glycerlaldehyde, 1,3-dihydroxyacetone, pyruvaldehyde, formic, levulinic, lactic, oxalic and succinic acids.
Reference Key
tanja2020journalhydrothermal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Gagić Tanja;Perva-Uzunalić Amra;Knez Željko;Škerget Mojca
Journal meditsinskaia radiologiia
Year 2020
DOI
10.2298/JSC181218070G
URL
http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51391900070G.pdf
Keywords
green technology subcritical water

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