Characterisation of Non-Cellulosic Heteropolysaccharide from Sugarcane Bagasse - Sequential Extraction with Steam Pretreatment and AlkaliJournal: International Journal of Science and Research (IJSR) (Vol.3, No. 9)
Publication Date: 2014-09-05
Authors : P. N. Banerjee;
Page : 953-955
Keywords : Alkaline peroxide extraction; Arabinoxylans; Degree of branching; Steam pretreatment; Sugarcane bagasse;
Two-stage treatments of sugarcane bagasse with steam and alkaline peroxide were performed and the hemicelluloses extracted were characterized by chemical methods, SEC-MALLS, FT-IR and 13C NMR. The hemicellulose from steam pretreatment was found to contain galacto-arabinoxylans while alkaline peroxide extraction yielded predominately linear arabinoxylans. The present study showed a promising sequential extraction for isolating arabinoxylan hemicelluloses with different degree of branching, molar mass and functional group from sugarcane bagasse. Consequently, products with a high aggregated value could be developed using this xylan-rich fraction as an ingredient for industrial products.
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