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Hydrodynamic cavitation-assisted acid pretreatment and fed-batch simultaneous saccharification and co-fermentation for ethanol production from sugarcane bagasse using immobilized cells of Scheffersomyces parashehatae.
Prado, C A; Cunha, M L S; Arruda, G L; Cruz-Santos, Monica M; Antunes, F A F; Shibukawa, V P; Terán-Hilares, R; da Silva, S S; Santos, J C.
Afiliación
  • Prado CA; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Cunha MLS; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Arruda GL; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Cruz-Santos MM; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Antunes FAF; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Shibukawa VP; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Terán-Hilares R; Laboratorio de Bioprocesos, Facultad de Ciencias Farmacéuticas, Bioquímicas y Biotecnológicas, Universidad Católica de Santa María-UCSM, Urb. San José s/n-Umacollo, Arequipa 04000, Peru.
  • da Silva SS; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil.
  • Santos JC; Department of Biotechnology, Engineering School of Lorena, University of São Paulo, postal code 12602-810 Lorena, Brazil. Electronic address: jsant200@usp.br.
Bioresour Technol ; 394: 130234, 2024 Feb.
Article en En | MEDLINE | ID: mdl-38142906
ABSTRACT
A new alternative for hydrodynamic cavitation-assisted pretreatment of sugarcane bagasse was proposed, along with a simultaneous saccharification and co-fermentation (SSCF) process performed in interconnected columns. Influential variables in the pretreatment were evaluated using a statistical design, indicating that an ozone flow rate of 10 mg min-1 and a pH of 5.10 resulted in 86 % and 72 % glucan and xylan hydrolysis yields, respectively, in the subsequent enzymatic hydrolysis process. Under these optimized conditions, iron sulfate (15 mg L-1) was added to assess Fenton pretreatment, resulting in glucan and xylan hydrolysis yields of 92 % and 71 %, respectively, in a material pretreated for 10 min. In SSCF, ethanol volumetric productivities of 0.33 g L-1 h-1 and of 0.54 g L-1 h-1 were obtained in batch and fed-batch operation modes, achieving 26 g L-1 of ethanol in 48 h in the latter mode.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Celulosa / Saccharum / Saccharomycetales Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Brasil

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Celulosa / Saccharum / Saccharomycetales Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: Brasil