Premium
Dilute acid hydrolysis of wheat straw hemicellulose at moderate temperature: A simplified kinetic model
Author(s) -
González G.,
LópezSantín J.,
Caminal G.,
Solà C.
Publication year - 1986
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260280219
Subject(s) - hemicellulose , xylose , hydrolysis , cellulose , chemistry , furfural , sulfuric acid , straw , arabinose , enzymatic hydrolysis , kinetics , organic chemistry , biochemistry , catalysis , chromatography , inorganic chemistry , fermentation , physics , quantum mechanics
Wheat straw has been hydrolized with sulfuric acid at 34 and 90°C. The treatment at 90°C yields complete solubilization of hemicellulose to xylose and arabinose without significant amounts of furfural. The influence of acid concentration was studied and the kinetics of the acid‐catalyzed hydrolysis has been modeled suggesting a two‐consecutive reactions mechanism. This model is useful to explain the different behavior of the concentration of the two main sugars produced. The enhanced cellulose accessibility to enzymatic attack is also reported.