Column reactors in fluidized bed configuration as intensification system for xylitol and ethanol production from napier grass (Pennisetum Purpureum)

Autor(es)

Antunes, F. A. F. ^[1] ; Machado, P. E. M. ^[1] ; Rocha, T. M. ^[1] ; Melo, Y. C. S. ^[1] ; Santos, J. C. ^[1] ; da Silva, S. S. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Area 1 Estr Municipal Campinho S-N, BR-12602810 Lorena, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CHEMICAL ENGINEERING AND PROCESSING; v. 164, JUL 2021.
• Citações Web of Science: 0

Resumo

Currently, the modern concept biorefinery industries require a consolidated, robust and cost-effective bioprocess applied to multi-products manufacturing. In alignment, this work presents biomass pretreatment of Pennisetum purpureum grass and integrated developments for carbohydrates portions utilization as carbon source for xylitol and ethanol production in intensified process conducted in column reactor with fluidized bed configuration, homogenized simply by air insertion. Primarily, by using hemicellulosic portion from acid hydrolysis, xylitol production was evaluated in column fluidized bed reactor by using the novel-wild Brazilian yeast Candida Tropicalis UFMGBX12-a verifying YP/S and Qp of 0.26 g/g and 0.06 g/L.h, respectively. Forwardly, the remaining celulignin from the acid hydrolysis was subjected to alkaline pretreatment, followed by Semi-Simultaneous saccharification and Fermentation process, in an intensification approach performed in column fluidized bed reactor, applied to ethanol production by Scheffersomyces Shehatae UFMG-HM 52.2. Enzymatic hydrolysis of pretreated biomass comprised 90% of glucose yield in 72h of saccharification, while ethanol productivity of 0.21 g/L.h, was found in 24 h of fermentation process. These new developments conferred potential use of Pennisetum purpureum grass as carbon source for xylitol and ethanol production in column reactor towards sustainable intensification process implementation. (AU)

• Processo FAPESP: 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas
• Beneficiário: Roberto de Campos Giordano
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático
• Processo FAPESP: 19/19695-5 - Desenvolvimento e síntese de nanobiocatalisadores para a aplicação em pré-tratamento de biomassa lignocelulósica visando a obtenção de açúcares fermentescíveis para o uso como fonte de carbono em biorrefinarias
• Beneficiário: Yasmin Cristhine de Souza Melo
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 14/27055-2 - Intensificação de processos em biorrefinarias de lignocelulósicos integrando etapas de produção de etanol e xilitol a partir de bagaço de cana-de-açúcar em reator de leito fluidizado
• Beneficiário: Felipe Antonio Fernandes Antunes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado