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Bioethanol Production From Sugarcane Bagasse Hemicellulose Hydrolysate by Immobilized S. shehatae in a Fluidized Bed Fermenter Under Magnetic Field

Author:
Dussán, Kelly J., Justo, Oselys Rodriguez, Perez, Victor Haber, David, Geraldo F., Junior, Euripedes Garcia Silveira, da Silva, Silvio S.
Source:
BioEnergy research 2019 v.12 no.2 pp. 338-346
ISSN:
1939-1234
Subject:
Scheffersomyces, biomass, bioreactors, ethanol, ethanol production, fermentation, fermenters, fluidized beds, hemicellulose, hydrolysates, magnetic fields, sugarcane bagasse
Abstract:
Bioethanol production from sugarcane bagasse hemicellulosic hydrolysate using immobilized Scheffersomyces shehatae on magnetic biosupports in a fluidized bed bioreactor assisted by magnetic field has been studied. Fermentations were carried out in two experimental setups operating in a magnetically stabilized bed mode with transversal and axial magnetic field lines at 8 and 12 kA/m, respectively. The best results were attained when experiments were carried out using a fermenter assisted by axial field whose ethanol/substrate yield and ethanol productivity were 0.15 ± 0.8E-3 g/g and 0.055 ± 0.3E-3 g/gh. These values were 12 and 34%, respectively, higher than those observed in fermentations with transversal field lines (Tukey’s test, p < 0.05). Thus, these results are attractive and can be considered as a technological advance in the bioethanol production from biomass using this unconventional fermentation technology.
Agid:
6453003