Artigo de periodico

A residue-free and effective corncob extrusion pretreatment for the enhancement of high solids loading enzymatic hydrolysis to produce sugars (2022)

• Authors:
  • Jose, Alvaro H. M.
  • Moura, Esperidiana Augusta Barretos de
  • Rodrigues Jr, Durval
  • Kleingesinds, Eduardo Krebs
  • Rodrigues, Rita de Cássia Lacerda Brambilla
• USP affiliated authors: RODRIGUES JUNIOR, DURVAL - EEL ; RODRIGUES, RITA DE CÁSSIA LACERDA BRAMBILLA - EEL ; JOSÉ, ÁLVARO HENRIQUE MELLO - EEL
• Unidade: EEL
• DOI: 10.1016/j.indcrop.2022.115655
• Assunto: ENZIMAS HIDROLÍTICAS
• Keywords: Twin-screw extrusion; Enzymatic hydrolysis; Corncob; Glucose-rich solution; Microstructural characterization
• Agências de fomento:
  • Financiamento CAPES
• Language: Inglês
• Abstract: To convert biomass into biofuel, pretreatment is the first stage required to de-structure lignocellulose – twinscrew extrusion is one of the viable pretreatment technologies. The enzymatic hydrolysis of corncobs pretreated with twin-screw extrusion to obtain sugar was evaluated. Corncob extrusion (115–130 ◦C; 14 rpm) was enhanced through the employment of additives (water and glycerol, 25:25, % w/w). By reproducing the response surface methodology (RSM) technique, the maximized glucose productivity (0.69 g L− 1 h− 1 ) and conversion of cellulose to glucose (90.4 % w/w), as well as hemicellulose to xylose and arabinose (44.0 % w/w) were established with the dosage of the commercial enzymatic complex Cellic Ctec2 (32 FPU/gdry lignocellulosic material) and solids loading (17.8 % w/w). Total sugar yield was of 471 kg (glucose 323 kg; xylose and arabinose 148 kg) for a dried corncob ton. Kinetic constants of the Michaelis-Menten model, Vmax and Km, for converting cellulose to glucose were of 6.00 % (w/w)/h and 22.59 gcellulose/Lsolution, respectively. A residue-free and effective corncob extrusion pretreatment enhanced high solids loading enzymatic hydrolysis to achieve a glucose-rich solution
• Imprenta:
  • Publisher: Elsevier
  • Date published: 2022
• Source:
  • Título: Industrial crops and products
  • ISSN: 09266690
  • Volume/Número/Paginação/Ano: v.188, p.115655-, 2022

Informações sobre o DOI: 10.1016/j.indcrop.2022.115655 (Fonte: oaDOI API)
• Este periódico é de assinatura
• Este artigo NÃO é de acesso aberto
  
• Cor do Acesso Aberto: closed

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• ABNT

  JOSE, Alvaro H. M. et al. A residue-free and effective corncob extrusion pretreatment for the enhancement of high solids loading enzymatic hydrolysis to produce sugars. Industrial crops and products, v. 188, p. 115655-, 2022Tradução . . Disponível em: https://doi.org/10.1016/j.indcrop.2022.115655. Acesso em: 01 nov. 2024.

• APA

  Jose, A. H. M., Moura, E. A. B. de, Rodrigues Jr, D., Kleingesinds, E. K., & Rodrigues, R. de C. L. B. (2022). A residue-free and effective corncob extrusion pretreatment for the enhancement of high solids loading enzymatic hydrolysis to produce sugars. Industrial crops and products, 188, 115655-. doi:10.1016/j.indcrop.2022.115655

• NLM

  Jose AHM, Moura EAB de, Rodrigues Jr D, Kleingesinds EK, Rodrigues R de CLB. A residue-free and effective corncob extrusion pretreatment for the enhancement of high solids loading enzymatic hydrolysis to produce sugars [Internet]. Industrial crops and products. 2022 ;188 115655-.[citado 2024 nov. 01 ] Available from: https://doi.org/10.1016/j.indcrop.2022.115655

• Vancouver

  Jose AHM, Moura EAB de, Rodrigues Jr D, Kleingesinds EK, Rodrigues R de CLB. A residue-free and effective corncob extrusion pretreatment for the enhancement of high solids loading enzymatic hydrolysis to produce sugars [Internet]. Industrial crops and products. 2022 ;188 115655-.[citado 2024 nov. 01 ] Available from: https://doi.org/10.1016/j.indcrop.2022.115655

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