|
Korean Journal of Chemical Engineering, Vol.29, No.10, 1341-1346, 2012
Comparison of bioethanol production of simultaneous saccharification & fermentation and separation hydrolysis & fermentation from cellulose-rich barley straw
Cellulose rich barley straw, which has a glucan content of 62.5%, followed by dilute acid pretreatment, was converted to bioethanol by simultaneous saccharification and fermentation (SSF). The optimum fractionation conditions for barley straw were an acid concentration of 1% (w/v), a reaction temperature of 158 ℃ and a reaction time of 15 min. The maximum saccharification of glucan in the fractionated barley straw was 70.8% in 72 h at 60 FPU/gglucan,
while the maximum digestibility of the untreated straw was only 18.9%. With 6% content WIS (water insoluble solid) for the fractionated barley straw, 70.5 and 83.2% of the saccharification yield were in SHF and SSF (representing with glucose equivalent), respectively, and a final ethanol concentration of 18.46 g/L was obtained under the optimized SSF conditions: 34 ℃ with 15 FPU/g-glucan enzyme loading and 1 g dry yeast cells/L. The results demonstrate that the SSF process is more effective than SHF for bioethanol production by around 18%.
[References]
- Balat M, Energy Conv. Manag., 52(2), 858, 2011
- Matsumura Y, Minowa T, Yamamoto H, Biomass Bioenerg., 29(5), 347, 2005
- FAOSTAT. Food and agriculture organization of the United Nations, http://faostat.fao.org/site/567/DesktopDefault.aspx?PageID=567# ancor (Accessed Sep. 2011).
- Kim S, Dale BE, Biomass Bioenerg., 26(4), 361, 2004
- Chen Y, Sharma-Shivappa RR, Keshwani D, Chen C, Appl. Biochem. Biotechnol., 142(3), 276, 2007
- Brethauer S, Studer MH, Yang B, Wyman CE, Bioresour. Technol., 102(10), 6295, 2011
- Zeng MJ, Mosier NS, Huang CP, Sherman DM, Ladisch MR, Biotechnol. Bioeng., 97(2), 265, 2007
- Han M, Kim Y, Kim Y, Chung B, Choi GW, Korean J. Chem. Eng., 28(1), 119, 2011
- Li ZM, Liu Y, Liao W, Chen SL, Zemetra RS, Biomass Bioenerg., 35(1), 542, 2011
- Xiros C, Katapodis P, Christakopoulos P, Bioresour. Technol., 102(2), 1688, 2011
- Mosier N, Wyman C, Dale B, Elander R, Lee YY, Holtzapple M, Ladisch M, Bioresour. Technol., 96(6), 673, 2005
- Jeong TS, Um BH, Kim JS, Oh KK, Appl. Biochem. Biotechnol., 161(1-8), 22, 2010
- Olofsson K, Bertilsson M, Liden G, Biotechnol. Biofuels., 1, 1, 2008
- Lu X, Zhang Y, Liang Y, Yang J, Zhang S, Suzuki E, Korean J. Chem. Eng., 25(2), 302, 2008
- Wyman CE, Spindler DD, Grohmann K, Biomass Bioenergy., 3(5), 301, 1992
- Peng LC, Chen YC, Biomass Bioenerg., 35(4), 1600, 2011
- Soderstrom J, Galbe M, Zacchi G, J. Wood Chem. Technol., 25, 187, 2005
- Ohgren K, Galbe M, Zacchi G, Process Biochem., 42(5), 834, 2006
- Wingren A, Galbe M, Zacchi G, Biotechnol. Prog., 19(4), 1109, 2003
- Wingren A, Galbe M, Zacchi G, Bioresour. Technol., 99(7), 2121, 2008
- Ehrman T, Chemical Analysis & Testing Standard Procedure., No.002, 1992
- Sluiter A, Hames B, Ruiz R, Scarlata C, Sluiter J, Tmpleton D, Crocker D, NREL/TP-510-42618, 2010
- Sluiter A, Hames B, Ruiz R, Scarlata C, Sluiter J, Tmpleton D, NREL/TP-510-42623, 2008
- Sluiter A, Hyman D, Payne C, Wolfe J, NREL/TP-510-42627, 2008
- Selig M, Weiss N, Ji Y, NREL/TP-510-42629, 2008
- Dowe N, Mcmillan J, NREL/TP-510-42630, 2008
- Um BH, Bae SH, Korean J. Chem. Eng., 28(5), 1172, 2011
- Ooshima H, Ishitani Y, Harano Y, Biotechnol. Bioeng., 27, 389, 1985
- Philippidis GP, Smith TK, Appl. Biochem. Biotechnol., 51, 117, 1995
- Oh KK, Kim SW, Jeong YS, Hong SI, Appl. Biochem. Biotechnol., 89(1), 15, 2000
- Ballesteros M, Oliva JM, Negro MJ, Manzanares P, Ballesteros I, Process Biochem., 39, 1843, 2004
[Cited By]
- Khattak WA, Ul-Islam M, Park JK, Korean Journal of Chemical Engineering, 29(11), 1467, 2012
- Lee EJ, Gao W, Lee JW, Korean Journal of Chemical Engineering, 32(1), 113, 2015
- Lee SC, Korean Chemical Engineering Research, 53(4), 457, 2015
- Jeong GT, Park DH, Korean Chemical Engineering Research, 53(4), 478, 2015
|