Fractionation of barley straw with dilute sulfuric acid for improving hemicellulose recovery

Kyung Yoen Won; Byung Hwan Um; Seung Wook Kim; Kyeong Keun Oh

Korean Journal of Chemical Engineering, Vol.29, No.5, 614-620, May, 2012

DOI10.1007/s11814-011-0218-y Export Citation

Fractionation of barley straw with dilute sulfuric acid for improving hemicellulose recovery

Kyung Yoen Won, Byung Hwan Um¹, Seung Wook Kim², and Kyeong Keun Oh^†

Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 330-714, Korea
¹Department of Chemical Engineering, Hankyong National University, Anseong, Gyeonggi-do 456-749, Korea
²Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea

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Dilute acid fractionation of barley straw improves dissolving hemicellulose fraction of the straw, while leaving the cellulose more reactive and accessible to enzyme as a strategy of pretreatment. To characterize the fractionation process, the effects of the acid concentration, temperature and reaction time on the hemicellulose removal as well as on the formation of by-products (furfural, 5-hydroxymethylfurfural and acetic acid) were investigated. The optimum fractionation conditions of barley straw were 1% (w/v) concentration of sulfuric acid, 158 ℃ of reaction temperature and 15 min of reaction time. Under the optimum conditions, 87% of xylan was hydrolyzed and recovered in liquid hydrolyzate, which was 7% higher than that of the predicted yield. The hydrolyzate contained glucose 2.44 g/L, arabinose 1.70 g/L, xylose 13.41 g/L, acetic acid 1.55 g/L, levulinic acid 0.03 g/L, 5-HMF 0.03 g/L and furfural 0.75 g/L.

Keywords:Barley Straw;Response Surface Methodology (RSM);Pretreatment;Hemicellulose;Sugar Decompositions

[References]

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Lee JS, Yoon SM, Lee JP, Cho JK, Kim MS, Park SC, Korean Chem. Eng. Res., 33(5), 605 (1995)
Um BH, Hanley TR, J. Microbiol. Biotechnol., 18(7), 1257 (2008)
Agbogo FK, Wenger KS, J. Ind. Microbiol. Biotechnol., 34, 723 (2007)
Song HS, Ramkrishna D, Korean J. Chem. Eng., 27(2), 576 (2010)
Anderson WF, Akin DF, J. Ind. Microbiol. Biotechnol., 35, 355 (2008)
Converse AO, Saddler JN, Bioconversion of forest and agricultural plant residues, CAB International, UK, Wollingford, 93 (1993)
Jin S, Chen H, Process Biochem., 41, 1261 (2006)
Han M, Kim Y, Kim Y, Chung B, Choi GW, Korean J. Chem. Eng., 28(1), 119 (2011)
Palonen H, Role of lignin in the enzymatic hydrolysis of lignocellulose, VTT publication, Finland, 29 (2004)
Ballesteros M, Oliva JM, Negro MJ, Process Biochem., 39, 1843 (2004)
Salvi DA, Aita GM, Robert D, Bazan V, J. Ind. Microbiol.Biotechnol., 37, 27 (2010)
Um BH, van Walsum GP, Appl. Biochem. Biotechnol., 153(1-2), 127 (2009)
Lu X, Zhang Y, Liang Y, Yang J, Zhang S, Suzuki E, Korean J. Chem. Eng., 25(2), 302 (2008)
Cara C, Moya M, Ballesteros I, Negro M, Gonzalez A, Ruiz E, Process Biochem., 42, 1003 (2007)
Cara C, Romero I, Oliva JM, Saez F, Castro E, Appl. Biochem.Biotechnol., 136/140, 379 (2007)
Ewanick SM, Bura R, Saddler JN, Biotechnol. Bioeng., 98(4), 737 (2007)
Laser M, Fuel and Energy Abstracts., 43, 243 (2002)
Lu X, Ahzng Y, Angelidaki I, Bioresour. Technol., 100, 3048 (2009)
Negro MJ, Manzanares P, Ballesteros I, Oliva JM, Cabanas A, Ballesteros M, Appl. Biochem. Biotechnol., 105/108, 87 (2003)
Wang L, Chen H, Process Biochem., 46, 604 (2011)
Sluiter A, Hames B, Ruiz R, Scarlata C, Sluiter J, Templeton D, Crocker D, Determination of sugars, byproduct,s and degradation products in liquid fraction process samples, NREL/TP-510-42623 (2008)
Um BH, Bae SH, Korean J. Chem. Eng., 28(5), 1172 (2011)

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[3] Um BH, Hanley TR, J. Microbiol. Biotechnol., 18(7), 1257 (2008)

[4] Agbogo FK, Wenger KS, J. Ind. Microbiol. Biotechnol., 34, 723 (2007)

[5] Song HS, Ramkrishna D, Korean J. Chem. Eng., 27(2), 576 (2010)

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[7] Converse AO, Saddler JN, Bioconversion of forest and agricultural plant residues, CAB International, UK, Wollingford, 93 (1993)

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[10] Palonen H, Role of lignin in the enzymatic hydrolysis of lignocellulose, VTT publication, Finland, 29 (2004)

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