Two-phase and two-dimensional model describing heat and water transfer during solid-state fermentation within a packed-bed bioreactor

Autor(es)

Casciatori, Fernanda Perpetua ^[1] ; Bueck, Andreas ^[2] ; Thomeo, Joao Claudio ^[3] ; Tsotsas, Evangelos ^[2]

Afiliação do(s) autor(es)

^[1] Fed Univ Sao Carlos UFSCar, Ctr Nat Sci, Rodovia Lauri Simoes Barros Km 12 SP 189, BR-18290000 Buri, SP - Brazil

^[2] Otto Von Guericke Univ, Thermal Proc Engn NaWiTec, Univ Pl 2, D-39106 Magdeburg - Germany

^[3] Sao Paulo State Univ UNESP, Inst Biosci Letters & Exact Sci, Food Engn & Technol Dept, Cristovao Colombo 2265, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CHEMICAL ENGINEERING JOURNAL; v. 287, p. 103-116, MAR 1 2016.
• Citações Web of Science: 14

Resumo

In the current paper, a two-phase and two-dimensional model describing heat and water transfer in a packed-bed bioreactor (PBB) for solid-state fermentation (SSF) is proposed. The model considers most of the transport mechanisms taking place in solid and gas phases and for axial and radial directions. For simulation, realistic physical properties of the particles and of the bed were employed, as well as interface coefficients were calculated based on classical correlations. The case-study was the solid-state cultivation of the newly isolated thermophilic fungus Myceliophthora thermophila I-1D3b in a mixture of sugarcane bagasse (SCB) and wheat bran (WB) within a narrow cylindrical and jacketed PBB. For non-saturated aeration, results showed that substrate drying near the inlet of the bioreactor harms fungal growth. For narrow PBB, jacket plays important rule on heat removal; for large-diameter PBB, radial heat removal becomes negligible. Simulated results agreed with experimental ones. The novel model here proposed is a powerful tool for guiding the scale-up of PBB for SSF. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/07453-5 - Biorreatores de leito fixo para fermentação em estado sólido: ampliação de escala para produção de celulases de origem fúngica
• Beneficiário: Fernanda Perpétua Casciatori
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/13939-0 - Modelagem da transferência de calor e da migração de umidade em biorreatores de fermentação no estado sólido em leito empacotado para produção de celulases fúngicas empregando resíduos sólidos agroindustriais
• Beneficiário: Fernanda Perpétua Casciatori
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 14/25183-3 - Desenvolvimento e ampliação de escala de biorreatores de leito empacotado para produção de celulases por fermentação em estado sólido
• Beneficiário: Fernanda Perpétua Casciatori
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado