Trend of reducing acid use in dilute acid pretreatment for biomass to ethanol
Ye Chen, Mark A. Stevens, Yongming Zhu and Hui Xu, Novozymes North America, Inc, Franklinton, NC

Pretreatment with alkali and oxygen to produce highly hydrolysable cellulose and sulfur-free lignin
Matti Siika-aho¹, Anne Kallioinen¹, Maija Hakola², Anikó Várnai³, Stella Rovio¹, Tiina Riekkola², Tarja Tamminen¹, Timo Repo², Liisa Viikari³, Markku Leskelä² and Niklas von Weymarn¹, (1)VTT Technical Research Centre of Finland, Espoo, Finland, (2)Department of Chemistry, University of Helsinki, Helsinki, Finland, (3)Department of Applied Chemistry and Microbiology, University of Helsinki, Helsinki, Finland

The novel method of improving steam pretreatment to bioethanol process: the effect of biomass moisture content on bioethanol yields from steam pretreated switchgrass and sugarcane bagasse
Renata Bura and Shannon Ewanick, School of Forest Resources, University of Washington, Seattle, WA

Break

Kinetic modeling and simulation of steam explosion and enzymatic hydrolysis of sugarcane bagasse
Marcelo B. W. Saad, Industrial Biotechnology Laboratory, Technological Research Institute - IPT, São Paulo - SP, Brazil and Adilson Roberto Gonçalves, University of São Paulo and Brazilian Bioethanol Science and Technology Laboratory, Lorena and Campinas, Brazil

Simplified process for ethanol production from sugarcane bagasse using hydrolysate-resistant Escherichia coli strain MM160
Claudia C. Geddes¹, Mike Mullinnix², Ismael U. Nieves¹, Ralph W. Hoffman¹, K. T. Shanmugam³ and L.O Ingram³, (1)University of Florida, Gainesville, FL, (2)University of Florida, FL, (3)Department of Microbiology and Cell Science, University of Florida, Gainesville, FL

Role of hemicellulose-lignin oligomers dissolution in flowthrough pretreatment of Miscanthus
Lishi Yan¹, Taiying Zhang², Bin Yang¹ and Charles Wyman², (1)Center for Bioproducts and Bioenergy, Washington State University, Richland, WA, (2)University of California, Center for Environmental Research and Technology, Riverside, CA

High-solids extrusion, hydrolysis and fermentation of corn stover to ethanol using a thermophilic Geobacillus strain
Lew P. Christopher¹, Vasudeo Zambare², Aditya Bhalla¹, Kasiviswanath Muthukumarappan³ and Rajesh K. Sani¹, (1)Center for Bioprocessing R&D and Department of Chemical & Biological Engineering, South Dakota School of Mines & Technology, Rapid City, SD, (2)Center for Bioprocessing R&D, South Dakota School of Mines & Technology, Rapid City, SD, (3)Center for Bioprocessing R&D and Department of Agricultural & Biosystems Engineering, South Dakota State University, Brookings, SD

Chemical, structural and morphological changes on the bagasse pretreated with ozone
Rodolfo Travaini¹, Marian D. M. Otero², Monica Coca³, Roberto Da-Silva¹, Eleni Gomes¹ and Silvia Bolado³, (1)Chemistry and Environmental Science, UNESP, Sao Jose do Rio Preto, Brazil, (2)chool of Environmental & Natural Resources Engineering, Universidad del Valle, Santiago de Cali, Colombia, (3)Departament of Chemical Engineering and Environmental Technology, Universidad de Valladolid, Valladolid, Spain

Evaluation of the biotechnological potential of sugarcane straw for second generation ethanol production
Patrycia G. Melo¹, Gabriel J. V. Betancur¹, Kelly Cristina N. R. Pedro¹, Nei Pereira Jr.¹ and Paulo I. Hargreaves², (1)Department of biochemical engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil, (2)Biochemical Engineering Department, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil