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Effects of steam explosion pretreatment on the chemical composition and fiber characteristics of cornstalks

Jun Xu, Guoqiang Zhou, Jun Li, Lihuan Mo

Abstract


This paper investigated the influence of steam explosion pretreatment with or without acid as the catalyst on the chemical composition and sugar contents of corn stalks. The fiber characteristics of the pretreated corn stalks were analyzed with a scanning electron microscope, a FS-300 automatic fiber analyzer and a fully automatic surface and pore analyzer. The results showed that the steam explosion pretreatment did not change the cellulose content of the corn stalks. However, hemicellulose was degraded and a portion of lignin was solubilized in the steam explosion pretreatment process. When acid was added in the steam explosion process, the fiber surface and cell wall structure of corn stalks were damaged, the specific surface area and pore size increased, and fiber length decreased, all of which were beneficial to subsequent enzymatic hydrolysis with cellulase. However, content of polysaccharides decreased after acid steam explosion pretreatment.


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References


XQ Ning, YL Wang, GM Zeng, et al. Study on improving reducing sugar yield of steam-explosive corn stalk by enzymatic hydrolysis[J]. Fine Chemicals, 2010, 27(9):862-865

D Chiaramonti, M Prussi, S Ferrero, et al. Review of pretreatment processes for lignocellulosic ethanol production, and development of an innovative method [J].《Biomass & Bioenergy》, 2012, 46(6): 25- 35.

S Ren, K Cheng, A Song. Kinetics of enzymatic hydrolysis of steam-explosion pretreated corn straw [J]. Chinese Journal of Biotechnology, 2011, 27 (27) :592-597.

Q Zhang,LU Jun,L Hou. Alcohol produced by corn stalk-investigation on pretreatment and hydrolysis methods of corn stalk[J]. Liquor-making Science & Technology, 2004, 53(8):1087-1092.

JQ Zhang, RM Wang,YY Sun. Research on the production of fuel alcohol by lignocellulose[J]. Liquor-making Science & Technology, 2003(1): 39- 42.

J Lee. Biological conversion of lignocellulosic biomass to ethanol[J]. Journal of biotechnology, 1997, 56 (1):1-24.

TY Jia, KJ Liao, MY Tong, et al. Research on synergism of acid-catalyzed steam explosion of corn stalk[J]. Contemporary Chemical Industry, 2011, 40 (12): 1224-1227

WE Kaar, CV Gutierrez, CM Kinoshita. Steam explosion of sugarcane bagasse as a pretreatment for conversion to ethanol[J]. Biomass and Bioenergy, 1998, 14 (3):277-287.

TB Ren,XU Gui-Zhuang,MA Xiao-Qin, et al. Influence of steam explosion on physical-chemical characteristic of corn stalk[J]. Gaoya Wuli Xuebao /Chinese Journal of High Pressure Physics, 2012, 26(2):227-234.

MX Han, YF Tan, HP Liu, et al. Enzymatic hydrolysis of corn stalk by dilute acid-steam explosion[J]. Science Technology & Engineering, 2014, 14(10):290-294.

M Zhang, G Yan, W Zhang. Analysis of the effect of carbonization conditions on bamboo fiber charcoal pore structure[J]. World Bamboo & Rattan, 2011(6):19-22.

J Tang, K Chen, F Huang, et al. Characterization of the pretreatment liquor of biomass from the perennial grass, Eulaliopsis binata, for the production of dissolving pulp[J]. Bioresource technology, 2013,13(10):548-552.

PX Zhao, WU Yi, ZK Zhao. The effect of dilute sulfuric acid impregnation on steam explosion pretreatment of corn stover[J]. Chemistry & Bioengineering, 2013, 30(5):67-71.

F Zimbardi, E Viola, F Nanna, et al. Acid impregnation and steam explosion of corn stover in batch processes[J]. Industrial Crops and Products , 2007, 26 (2): 195-206.

JJ Zhu, Q Yong, SX Chen, et al. Identification of degraded products from steam-exploded corn stalk [J]. Chemistry & Industry of Forest Products, 2009, 29(2):22-26.

P Alvira, E Tomás-Pejó, M Ballesteros, et al. Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review. [J]. Bioresource Technology, 2010, 101(13):4851-4861.

M Cantarella, L Cantarella, A Gallifuoco, et al. Effect of inhibitors released during steam- explosion treatment of poplar wood on subsequent enzymatic hydrolysis and SSF [J]. Biotechnology Progress, 2004, 20(1):200-206.




DOI: http://dx.doi.org/10.21967/jbb.v2i4.100

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