title: Increase in ethanol production from sugarcane bagasse based on combined pretreatments and fed-batch enzymatic hydrolysis.
abstract: Enzymatic hydrolysis of pretreated sugarcane bagasse was performed to investigate the production of ethanol. The sugarcane bagasse was pretreated in a process combining steam explosion and alkaline delignification. The lignin content decreased to 83%. Fed-batch enzymatic hydrolyses was initiated with 8% (w/v) solids loading, and 10 FPU/g cellulose. Then, 1% solids were fed at 12, 24 or 48 h intervals. After 120 h, the hydrolysates were fermented with Saccharomyces cerevisiae UFPEDA 1238, and a fourfold increase in ethanol production was reached when fed-batch hydrolysis with a 12-h addition period was used for the steam pretreated and delignified bagasse.
authors.affiliation: Department of Antibiotics, Federal University of Pernambuco, Cidade Universitária, CEP 50670901 Recife, PE, Brazil.
authors.forename: Maria Carolina de Albuquerque
authors.initials: MC
authors.lastname: Wanderley
authors.forename: Carlos
authors.initials: C
authors.lastname: Martín
authors.forename: George Jackson de Moraes
authors.initials: GJ
authors.lastname: Rocha
authors.forename: Ester Ribeiro
authors.initials: ER
authors.lastname: Gouveia
mesh_terms: D061249:Batch Cell Culture Techniques / Q000379:methods*; D019149:Bioreactors / Q000382:microbiology*; D044602:Cellulases / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism*; D000431:Ethanol / Q000302:isolation & purification / Q000378:metabolism*; D006868:Hydrolysis; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D031786:Saccharum / Q000737:chemistry / Q000382:microbiology*; D013227:Steam
chemical_list: D013227:Steam; D000431:Ethanol; D002482:Cellulose; C027433:bagasse; D044602:Cellulases