WO2006115455-A1  TOON S.T. ET AL.: 'Enhanced Confermentation of Glucose and Xylose by Recombinant Saccharomyces Yeast Strains in Batch and Continuous Operating Modes' APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY vol. 63-65, 1997, pages 243 - 255, XP000973510;  VARGA E. ET AL.: 'Optimization of Steam Pretreatment of Corn Stover to Enhance Enzymatic Digestibility' APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY vol. 113-116, 2004, pages 509 - 523, XP003000362;  HARI KRISHNA S. ET AL.: 'Simultaneous saccharification and fermentation of lignocellulosic wastes to ethanol using a thermotolerant yeast' BIORESOURCE TECHNOLOGY vol. 77, 2001, pages 193 - 196, XP003000363;  WAHLBOM C.F. ET AL.: 'Generation of the improved recombinant xylose-utilizing Saccharomyces cerevisiae TMB 3400 by random mutagenesis and physiological comparison with Pichia stipitis CBS 6054' FEMS YEAST RESEARCH vol. 3, 2003, pages 319 - 326, XP002980002;  KUYPER M. ET AL.: 'Minimal metabolic engineering of Saccharomyces cerevisiae for efficient anaerobic xylose fermentation: a proof of principle' FEMS YEAST RESEARCH vol. 4, 2004, pages 655 - 664, XP002312911;  DATABASE MEDLINE [Online] JEFFRIES T.W. ET AL.: 'Genetic engineering for improved xylose fermentation by yeasts', XP003000364 Database accession no. (10533434)&ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY vol. 65, pages 117 - 161;  CAO N.J. ET AL.: 'Ethanol Production from Corn Cob Pretreated by the Ammonia Steeping Process using Genetically Engineered Yeast' BIOTECHNOLOGY LETTERS vol. 18, no. 9, September 1996, pages 1013 - 1018, XP008067477;  CHANDRAKANT P. ET AL.: 'Simultaneous bioconversion of glucose and xylose to ethanol by Saccharomyces cerevisiae in the presence of xylose isomerase' APPL. MICROBIOL. BIOTECHNOL. vol. 53, 2000, pages 301 - 309, XP003000365;  KATAHIRA S. ET AL.: 'Construction of a Xylan-Fermenting Yeast Strain through Codisplay of Xylanolytic Enzymes on the Surface of Xylose-Utilizing Saccharomyces cerevisiae Cells' APPLIED AND ENVIRONMENTAL MICROBIOLOGY vol. 70, no. 9, September 2004, pages 5407 - 5414, XP003000366;  DATABASE MEDLINE [Online] KUMAGAI M.H. ET AL.: 'Conversion of starch to ethanol in a recombinant Saccharomyces from a novel Pichia pastoris alcohol oxidase promoter', XP003000367 Database accession no. (7763608)&BIO/TECHNOLOGY (NATURE PUBLISHING COMPANY) vol. 11, no. 5, May 1993, pages 606 - 610