CHEMIN, Maud; WIROTIUS, Anne-Laure; HAM-PICHAVANT, Frédérique; CHOLLET, Guillaume; DA SILVA PEREZ, Denilson; PETIT-CONIL, Michel; CRAMAIL, Henri; GRELIER, Stéphane

doi:10.1016/j.eurpolymj.2015.02.008

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CHEMIN, Maud
Laboratoire de Chimie des Polymères Organiques [LCPO]

WIROTIUS, Anne-Laure
Laboratoire de Chimie des Polymères Organiques [LCPO]

HAM-PICHAVANT, Frédérique
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers

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European Polymer Journal. 2015, vol. 66, p. 190-197

Elsevier

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The purpose of this study is to target well-defined xylooligosaccharides by controlled sulfuric acidic hydrolysis of beechwood xylans. Parameters such as sulfuric acid and xylan concentrations, hydrolysis duration and temperature have been investigated, allowing optimum conditions to be determined (0.7 M H2SO4, 90 degrees C, 45 min). The obtained xylooligosaccharides show a well-defined structure and have been characterized using several techniques such as 1D and 2D nuclear magnetic resonance spectrometry and matrix-assisted laser desorption/ionization-time of flight mass spectrometry. This work demonstrated that mild acidic hydrolysis conditions enable the reproducible production of xylooligosaccharides containing, on average, six xylose units and only one 4-O-methyl-D-glucuronic acid unit likely positioned at the non-reductive chain-end.< Leer menos

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LIGNOCELLULOSIC MATERIALS

XYLOOLIGOSACCHARIDE PRODUCTION

Xylan

Xylooligosaccharides

Acidic hydrolysis

Controlled depolymerization

NMR spectroscopy

MALDI-TOF MS

DILUTE SULFURIC-ACID

WHEAT STRAW HEMICELLULOSE

XYLO-OLIGOSACCHARIDES

SUGARCANE BAGASSE

KINETIC-MODEL

AUTOHYDROLYSIS

XYLANS

BIRCH

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Well-defined oligosaccharides by mild acidic hydrolysis of hemicelluloses

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