Data/hora: 24/06/2024 05:54:48

Biblioteca(s): | Embrapa Agroenergia.
Data corrente: | 05/10/2023
Data da última atualização: | 26/10/2023
Autoria: | NOGUEIRA, B. L.; SECCHI, A. R.; MACHADO, F.; RODRIGUES, C. V. S.; GAMBETTA, R.; RODRIGUES, D. S.
Afiliação: | BRUNO L. NOGUEIRA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; ARGIMIRO R. SECCHI, UNIVERSIDADE DE BRASÍLIA; FABRICIO MACHADO, UNIVERSIDADE DE BRASÍLIA; CARIME V. S. RODRIGUES, EMBRAPA AGROENERGIA; ROSSANO GAMBETTA, CNPAE; DASCIANA S. RODRIGUES, EMBRAPA AGROENERGIA.
Título: | Improvement of enzymatic saccharification by simultaneous pulping of sugarcane bagasse and washing of its cellulose fibers in a batch reactor.
Ano de publicação: | 2023
Fonte/Imprenta: | Biotechnology Journal, v. 18, n. 8, 2200542, Aug. 2023.
DOI: | https://doi.org/10.1002/biot.202200542
Idioma: | Inglês
Conteúdo: | A modification of the conventional batch organosolv process is proposed in a way where the solid biomass remains inside a basket, physically separated from the liquid phase, with the vapor promoting the fractionation of the biomass and the extracted compounds and fragments being washed down to the liquid phase. The modified organosolv process applied to sugarcane bagasse (SB-M) delivers a rich cellulosic solid phase that after enzymatic hydrolysis leads to a hydrolyzed with approximately 100 g L&#8722;1 of glucose. At the same enzymatic hydrolysis conditions, the conventional organosolv process (SB-C) delivers a hydrolyzed with 80 g L&#8722;1 of glucose, while the autohydrolysis process (SB-A) leads to 55 g L&#8722;1 of glucose. These different results are related to the cellulose content: SB-M (70%), SB-C (57%), e SB-A (44%), as well the reduced lignin content in the SB-M. The novelty of this study is the confirmation that it is possible to degrade lignin from sugarcane bagasse and simultaneously remove its fragments from the cellulose fibers in a batch reactor containing an internal basket. This study describes a simple and rapid protocol for the isolation of the main compo-nents of lignocellulosic biomass (cellulose, hemicellulose, and lignin), which may lead to the study of new catalysts for the chemical transformation of these components separately or simultaneously to the step of pretreatment.
Thesaurus Nal: | Biomass; Lignocellulosic wastes; Pretreatment; Sugarcane bagasse.
Categoria do assunto: | --
Registro original: | Embrapa Agroenergia (CNPAE)
Exemplares: | CNPAE - (4214-1) - UPC - AP - DD -  -  -  - DIS