RT journal article
T1 Dilute acid pre-treatment of rapeseed straw for fermentable sugar generation
A1 Castro, Eulogio
A1 Díaz Villanueva, Manuel Jesús
A1 Cara-Corpas, Cristobal
A1 Ruiz-Ramos, Encarnación
A1 Romero-Pulido, Inmaculada
A1 Moya, Manuel
K1 Agricultural residues
K1 Dilute acid pretreatment
K1 Enzymatic hydrolysis
K1 Rapeseed straw
AB The influence of the main pretreatment variables on fermentable sugar generation from rapeseed straw is studied using an experimental design approach. Low and high levels for pretreatment temperature(140–200 ºC), process time (0–20 min) and concentration of sulfuric acid (0.5–2% w/v) were selectedaccording to previous results. Glucose and xylose composition, as well as sugar degradation, were monitored and adjusted to a quadratic model. Non-sugar components of the hydrolysates were also determined. Enzymatic hydrolysis yields were used for assessing pretreatment performance. Optimization based on the mathematical model show that total conversion of cellulose from pretreated solids can be achieved at pretreatment conditions of 200 ºC for 27 min and 0.40% free acid concentration. If optimization criteria were based on maximization of hemicellulosic sugars recovery in the hydrolysate along with cellulose preservation in the pretreated solids, milder pretreatment conditions of 144 ºC, 6 min and 2% free acid concentration should be used.
PB Elsevier
SN 0960-8524
YR 2011
FD 2011
LK http://hdl.handle.net/10498/33304
UL http://hdl.handle.net/10498/33304
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 04-nov-2026