TY - JOUR
T1 - Sugar recovery from rice straw by dilute acid pretreatment
AU - Kim, Sung Bong
AU - Lee, Sang Jun
AU - Jang, Eun Ji
AU - Han, Sung Ok
AU - Park, Chulhwan
AU - Kim, Seung Wook
PY - 2012/1/25
Y1 - 2012/1/25
N2 - Rice straw was pretreated with dilute sulfuric acid in order to decrease the amorphous portion and enhance enzyme accessibility. Dilute acid pretreatment process was optimized using a statistical method, and the relationships between each factor were investigated. Saccharification of pretreated rice straw was then performed, followed by fermentation of glucose, the hydrolysate of the saccharification process. The optimal dilute acid pretreatment process was as follows: temperature 110°C, reaction time 14.02. min, and acid concentration 1.2%. Following dilute acid pretreatment, the solid weight was decreased by about 20% and 73.14% of the theoretical maximum content of xylose was solubilized. Glucose was recovered at a rate of about 90% at 24. h after rice straw was treated with dilute acid. Qualitative analysis such as SEM, XRD, and FT-IR were conducted after the pretreatment process, and the results supported the pretreatment process.
AB - Rice straw was pretreated with dilute sulfuric acid in order to decrease the amorphous portion and enhance enzyme accessibility. Dilute acid pretreatment process was optimized using a statistical method, and the relationships between each factor were investigated. Saccharification of pretreated rice straw was then performed, followed by fermentation of glucose, the hydrolysate of the saccharification process. The optimal dilute acid pretreatment process was as follows: temperature 110°C, reaction time 14.02. min, and acid concentration 1.2%. Following dilute acid pretreatment, the solid weight was decreased by about 20% and 73.14% of the theoretical maximum content of xylose was solubilized. Glucose was recovered at a rate of about 90% at 24. h after rice straw was treated with dilute acid. Qualitative analysis such as SEM, XRD, and FT-IR were conducted after the pretreatment process, and the results supported the pretreatment process.
KW - Dilute acid pretreatment
KW - Optimization
KW - Response surface methodology
KW - Saccharification
KW - Sulfuric acid
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U2 - 10.1016/j.jiec.2011.11.016
DO - 10.1016/j.jiec.2011.11.016
M3 - Article
AN - SCOPUS:84855481398
SN - 1226-086X
VL - 18
SP - 183
EP - 187
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
IS - 1
ER -