title: Enzymatic hydrolysis of pretreated waste paper--source of raw material for production of liquid biofuels.
abstract: Enzymatic hydrolysis of waste paper is becoming a perspective way to obtain raw material for production of liquid biofuels. Reducing sugars solutions that arise from the process of saccharification are a precursors for following or simultaneous fermentation to ethanol. Different types of waste paper were evaluated, in terms of composition and usability, in order to select the appropriate type of the waste paper for the enzymatic hydrolysis process. Novozymes® enzymes NS50013 and NS50010 were used in a laboratory scale trials. Technological conditions, which seem to be the most suitable for hydrolysis after testing on cellulose pulp and filter paper, were applied to hydrolysis of widely available waste papers - offset paper, cardboard, recycled paper in two qualities, matte MYsol offset paper and for comparison again on model materials. The highest yields were achieved for the cardboard, which was further tested using various pretreatment combinations in purpose of increasing the hydrolysis yields.
authors: Institute of Process and Environmental Engineering, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic. Electronic address: brummer@fme.vutbr.cz.
authors: Vladimir
authors: V
authors: Brummer
authors: Institute of Process and Environmental Engineering, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic.
authors: Tomas
authors: T
authors: Jurena
authors: Institute of Food Science and Biotechnology, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
authors: Viliam
authors: V
authors: Hlavacek
authors: Institute of Food Science and Biotechnology, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
authors: Jirina
authors: J
authors: Omelkova
authors: Institute of Process and Environmental Engineering, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic.
authors: Ladislav
authors: L
authors: Bebar
authors: VUCHZ, a.s., Krizikova 70, 612 00 Brno, Czech Republic.
authors: Petr
authors: P
authors: Gabriel
authors: Institute of Process and Environmental Engineering, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic.
authors: Petr
authors: P
authors: Stehlik
mesh_terms: D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D002021:Buffers; D006868:Hydrolysis; D008049:Lipase / Q000378:metabolism*; D010209:Paper; D012995:Solubility; D012996:Solutions; D014866:Waste Products
chemical_list: D056804:Biofuels; D002021:Buffers; D012996:Solutions; D014866:Waste Products; D008049:Lipase
keywords: Bioethanol; Enzymatic hydrolysis; Novozymes; Pretreatment; Waste paper