Hemicelluloses obtaining from rapeseed cake residue generated in the biodiesel production process
Date
2010-03-25Author
Egüés Artola, Itziar
González Alriols, María
Herseczki, Zsanett
Marton, Gy
Labidi Bouchrika, Jalel
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Journal of Industrial and Engineering Chemistry 16(2) : 293-298 (2010)
Abstract
[EN]The processing of rapeseed oil seeds for biodiesel production generates huge amounts of lignocellulosiccake residue mainly composed by cellulose, hemicelluloses and lignin. In this work, the valorisation ofthese components, especifically the majoritary fraction, hemicelluloses, was studied. Hemicelluloses
were extracted, purified and characterized by different techniques (FTIR, 1H NMR, 13C NMR, and GPC).
Autohydrolysis and acid hydrolysis processes were applied to obtain sugar monomers and oligomers.
Glucose and xylose were the main simple sugars in the obtained hydrolysates, representing 22.7% and
40.2% of total sugars content in the autohydrolysis hydrolysates and 27.7% and 36.6% in the acid
hydrolysates respectively. Arabinose, galactose and mannose were present in relatively minor
quantities.