RT Journal Article
T1 Acid hydrolysis of wheat straw: A kinetic study
A1 Guerra Rodríguez, Esther
A1 Portilla Rivera, Oscar M.
A1 Jarquín-Enríquez, Lorenzo
A1 Ramírez de León, Jose A.
A1 Vázquez Vázquez, Manuel
K1 Acid hydrolysis
K1 Straw
K1 Wheat
K1 Xylose
K1 Glucose
K1 Lignocellulosic wastes
AB Biotechnological xylitol production can be enhanced if the needed xylose solutions can be obtained from hydrolysis of low-cost lignocellulosic wastes. The hydrolysis of wheat straw to obtain xylose solutions has a double consequence, the elimination of a waste and the generation of a value-added product. The objective of this work was to study the xylose production from wheat straw by sulphuric acid hydrolysis at 130 °C. Several mass fraction of acid (1, 2, 3, 4 or 5%) were evaluated. Kinetic models were developed to explain the variation with time of xylose, glucose, arabinose, furfural, 5-(hydroxymethyl)-2-furaldehyde and acetic acid in the hydrolysates. Optimal conditions found were a H2SO4 mass fraction of 2% at 130 °C for 29 min, which yielded a solution with xylose, 18.9 kg m−3; glucose, 3.5 kg m−3; arabinose, 3.1 kg m−3; furfural, 0.6 kg m−3; 5-(hydroxymethyl)-2-furaldehyde, 0.3 kg m−3 and acetic acid, 2.3 kg m−3. In these conditions, 99% of the hemicelluloses and 11% of the glucan were hydrolysed
PB Elsevier
YR 2012
FD 2012-11-25
LK https://hdl.handle.net/10347/43991
UL https://hdl.handle.net/10347/43991
LA eng
NO Esther Guerra-Rodríguez, Oscar M. Portilla-Rivera, Lorenzo Jarquín-Enríquez, Jose A. Ramírez, Manuel Vázquez, Acid hydrolysis of wheat straw: A kinetic study, Biomass and Bioenergy, Volume 36, 2012, Pages 346-355, ISSN 0961-9534, https://doi.org/10.1016/j.biombioe.2011.11.005
NO The authors are grateful to MICINN (Spain) for the financial support of this work (project AGL2006-08250/ALI) and the FEDER founds of the European Union
DS Minerva
RD 22 abr 2026