title: Biological pretreatment of sugarcane bagasse with basidiomycetes producing varied patterns of biodegradation.
abstract: This work evaluated sugarcane bagasse pretreatment with wood-decay fungi, producing varied patterns of biodegradation. The overall mass balance of sugars released after pretreatment and enzymatic hydrolysis indicated that a selective white-rot was necessary to provide glucose yields similar to the ones observed from leading physico-chemical pretreatment technologies. The selective white-rot Ceriporiopsis subvermispora was selective for lignin degradation in the lignocellulosic material, preserved most of the glucan fraction, and increased the cellulose digestibility of biotreated material. Glucose mass balances indicated that of the potential glucose of untreated bagasse, 47% was recovered as sugar-rich syrup after C. subvermispora biotreatment for 60days followed by enzymatic digestion of the pretreated material.
authors.affiliation: Departamento de Biotecnologia, Escola de Engenharia de Lorena, Universidade de São Paulo, 12610-820 Lorena, SP, Brazil.
authors.forename: Angela da Silva
authors.initials: ADS
authors.lastname: Machado
authors.affiliation: Departamento de Biotecnologia, Escola de Engenharia de Lorena, Universidade de São Paulo, 12610-820 Lorena, SP, Brazil. Electronic address: aferraz@debiq.eel.usp.br.
authors.forename: André
authors.initials: A
authors.lastname: Ferraz
mesh_terms: D001673:Biodegradation, Environmental; D002480:Cellulase / Q000378:metabolism; D002482:Cellulose / Q000737:chemistry*; D055453:Coriolaceae / Q000378:metabolism*; D005936:Glucans / Q000378:metabolism; D005947:Glucose / Q000032:analysis / Q000378:metabolism; D006868:Hydrolysis; D031786:Saccharum / Q000737:chemistry*; D014934:Wood / Q000378:metabolism; D014990:Xylans / Q000378:metabolism; D014994:Xylose / Q000032:analysis; D001617:beta-Glucosidase / Q000378:metabolism
chemical_list: D005936:Glucans; D014990:Xylans; D002482:Cellulose; C027433:bagasse; D014994:Xylose; D001617:beta-Glucosidase; D002480:Cellulase; D005947:Glucose
keywords: Basidiomycetes; Biopulping; Biorefineries; Enzymatic hydrolysis; Pretreatment; Sugarcane bagasse