TY - CHAP
T1 - Organosolv Pretreatment of Pine Sawdust for Bio-ethanol Production
AU - Xu, Chunbao (Charles)
AU - Liao, Baoqiang
AU - Shi, Wei
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2013
Y1 - 2013
N2 - This chapter presents some recent research results on pretreatment of pine sawdust for bio-ethanol production, using organosolv extraction-based methods, combined with other methods including ultrasonic treatment, and sodium hydroxide treatment, and enzymatic hydrolysis of the pretreated pine sawdust samples. The pretreatment efficiency (PE) and delignification efficiency (DE) of various pretreatment methods were studied. All the pretreatment methods, in particular the organosolv extraction, resulted in significant removal of lignin and hemicellulose. The results indicated that the combination of three pretreatment methods (organosolv extraction + ultrasound + NaOH) achieved the best PE (61.6 % ± 1 %) and DE (86.4 % ± 3 %). Enzymatic hydrolysis of pine samples treated with different pretreatment methods was comparatively studied. Glucose yields, total sugar yields, and total weight loss were obtained under various enzyme loading (0~15.6 FPU cellulase) and reaction time (48 h). The maximum glucose yield and the maximum total sugar yield were 5.8 % and 7.1 %, respectively, for un-pretreated raw pine samples, compared with 19.3 % and 22.40 % for the (organosolv extracted + ultrasound + NaOH) treated samples. © Springer-Verlag Berlin Heidelberg 2013.
AB - This chapter presents some recent research results on pretreatment of pine sawdust for bio-ethanol production, using organosolv extraction-based methods, combined with other methods including ultrasonic treatment, and sodium hydroxide treatment, and enzymatic hydrolysis of the pretreated pine sawdust samples. The pretreatment efficiency (PE) and delignification efficiency (DE) of various pretreatment methods were studied. All the pretreatment methods, in particular the organosolv extraction, resulted in significant removal of lignin and hemicellulose. The results indicated that the combination of three pretreatment methods (organosolv extraction + ultrasound + NaOH) achieved the best PE (61.6 % ± 1 %) and DE (86.4 % ± 3 %). Enzymatic hydrolysis of pine samples treated with different pretreatment methods was comparatively studied. Glucose yields, total sugar yields, and total weight loss were obtained under various enzyme loading (0~15.6 FPU cellulase) and reaction time (48 h). The maximum glucose yield and the maximum total sugar yield were 5.8 % and 7.1 %, respectively, for un-pretreated raw pine samples, compared with 19.3 % and 22.40 % for the (organosolv extracted + ultrasound + NaOH) treated samples. © Springer-Verlag Berlin Heidelberg 2013.
KW - Delignification efficiency
KW - Enzymatic hydrolysis
KW - Glucose
KW - Jack pine
KW - Organosolv extraction
KW - Pretreatment
KW - Pretreatment efficiency
KW - Sodium hydroxide
KW - Softwood
KW - Ultrasound
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U2 - 10.1007/978-3-642-32735-3_19
DO - 10.1007/978-3-642-32735-3_19
M3 - RGC 12 - Chapter in an edited book (Author)
SN - 9783642327346
VL - 115
T3 - Green Energy and Technology
SP - 435
EP - 457
BT - Pretreatment Techniques for Biofuels and Biorefineries
PB - Springer Verlag
ER -
