Effects of severe and mild alkaline hydrogen peroxide (AHP) pretreatment on ethanol production from sweet sorghum bagasse via pre-simultaneous saccharification fermentation, and the chemical structure changes of the substrates were investigated. The results showed that the bagasse pretreated by severe AHP could produce more ethanol than that of mild AHP. The maximum ethanol concentration of the bagasses from mild and severe AHP pretreatment with 8% bagasse loading was 7.642±0.140 g/L and 19.330±0.085 g/L, respectively. Moreover, the FTIR and NMR analysis illustrated that the molecule and surface structures of the pretreated bagasse were significantly changed compared with the control. The potential biomass energy production of the effluent from the pretreatment was also briefly discussed for future utilization of waste solution.The heat energy potentials of waste solution with severe and mild AHP pretreatment were 367.2 kJ/L effluent and 327.6 kJ/L effluent, respectively.

Sweet Sorghum Bagasse Alkaline Hydrogen Peroxide Pretreatment Ethanol Fermentation Energy Potential Biofuel

da Silva AS, Inoue H, Endo T, Yano S, Bon EPS, Bioresour. Technol., 101(19), 7402 (2010)
Wang K, Jiang JX, Xu F, Sun RC, Polym. Degrad. Stabil., 94, 1379 (2009)
Taherzadeh MJ, Karimi K, Int. J. Mol. Sci., 9(9), 1621 (2008)
Saha BC, Cotta MA, Biotechnol. Prog., 22(2), 449 (2006)
Oh YH, Eom IY, Joo JC, Yu JH, Song BK, Lee SH, Hong SH, Park SJ, Korean J. Chem. Eng., 32(10), 1945 (2015)
Rabelo SC, Maciel R, Costa AC, Appl. Biochem. Biotechnol., 148(1-3), 45 (2008)
Cao WX, Sun C, Liu RH, Yin RZ, Wu XW, Bioresour. Technol., 111, 215 (2012)
Yu HB, Du WQ, Zhang J, Ma FY, Zhang XY, Zhong WX, Bioresour. Technol., 101(17), 6728 (2010)
Cabrera E, Munoz MJ, Martin R, Caro I, Curbelo C, Diaz AB, Bioresour. Technol., 167, 1 (2014)
Ohgren K, Vehmaanpera J, Siika-Aho M, Galbe M, Viikari L, Zacchi G, Enzyme Microb. Technol., 40(4), 607 (2007)
Kadar Z, Szengyel Z, Reczey K, Ind. Crop. Prod., 20, 103 (2004)
Mesa L, Gonzalez E, Romero I, Ruiz E, Cara C, Castro E, Chem. Eng. J., 175, 185 (2011)
Wu L, Arakane M, Ike M, Wada M, Takai T, Gau M, Tokuyasu K, Bioresour. Technol., 102(7), 4793 (2011)
Dubois M, Gilles KA, Hamilton JK, Robers PA, Smith F, Anal. Chem., 28, 350 (1956)
Singleton VL, Orthofer R, Lamuela-Raventos RM, Methods Enzymol., 299, 152 (1999)
Yun YM, Cho SK, Kim HW, Jung KW, Shin HS, Kim DH, Korean J. Chem. Eng., 32(8), 1542 (2015)
Van Soest PJ, J. Assoc. Off. Agric. Chem., 46, 829 (1963)
Umagiliyage AL, Choudhary R, Liang Y, Haddock J, Watson DG, Ind. Crop. Prod., 74, 977 (2015)
Miller GL, Anal. Chem., 31, 426 (1959)
Savy D, Piccolo A, Biomass Bioenerg., 62, 58 (2014)
Kumar P, Barrett DM, Delwiche MJ, Stroeve P, Ind. Eng. Chem. Res., 48(8), 3713 (2009)
Silverstein RA, Chen Y, Sharma-Shivappa RR, Boyette MD, Osborne J, Bioresour. Technol., 98(16), 3000 (2007)
Zhu S, Wu Y, Yu Z, Liao J, Zhang Y, Process Biochem., 40, 3082 (2005)
Rezende CA, de Lima MA, Maziero P, Deazevedo ER, Garcia W, Polikarpov I, Biotechnol. Biofuels., 4, 54 (2011)
Zhang JZ, Ma XX, Yu JL, Zhang X, Tan TW, Bioresour. Technol., 102(6), 4585 (2011)
He YF, Pang YZ, Liu YP, Li XJ, Wang KS, Energy Fuels, 22(4), 2775 (2008)
Cao Y, Tan HM, J. Mol. Struct., 705, 189 (2004)
Sun C, Liu R, Cao W, Yin R, Mei Y, Zhang L, Energy Fuels, 29, 4966 (2015)
Locci E, Laconi S, Pompei R, Scano P, Lai A, Marincola FC, Bioresour. Technol., 99(10), 4279 (2008)
Trinsoutrot I, Monrozier LJ, Cellier J, Waton H, Alamercery S, Nicolardot B, Plant Soil., 234, 61 (2001)
Jahan MS, Chowdhury DAN, Islam MK, Moeiz SMI, Bioresour. Technol., 98(2), 465 (2007)
Goncalves DL, Matsushika A, de Sales BB, Goshima T, Bon EPS, Stambuk BU, Enzyme Microb. Technol., 63, 13 (2014)
Shen SC, Nges IA, Yun JX, Liu J, Chem. Eng. J., 240, 253 (2014)