Data/hora: 01/06/2024 02:34:09

Provedor de dados: | 91
País: | Brazil
Título: | Xylose production from sugarcane bagasse by surface response methodology
Autores: | Paiva,José E. de; Maldonade,Iriani R.; Scamparini,Adilma R. P.
Data: | 2009-02-01
Ano: | 2009
Palavras-chave: | Hemicellulose; Hydrolysis; HPLC; Aldopentose; Renewable carbon source.
Resumo: | The aim of this study was to optimize the production of xylose from sugarcane bagasse. The hydrolysis process was carried out to evaluate the effect of temperature and sulphuric acid concentration on the xylose production at 18, 30, and 50 min of hydrolysis. A Central Composite Rotatable Design (CCRD) was used to study two process variables, temperature (111.5; 114.0; 120.0; 126.0 and 128.5 ºC) and sulphuric acid concentration (0.20; 0.70; 1.90; 3.10 and 3.60% v v-1). Sulphuric acid had a greater influence on the hydrolysis process than temperature. At concentrations of sulphuric acid higher than 3.10% (v v-1), raising temperature had little influence on the yield of xylose production. The best condition to obtain xylose (266.73 mg g-1 of dry bagasse) was at 18 min of reaction, at 126 ºC and 3.10% (v v-1) of sulphuric acid, representing 96.0% of the theoretical maximum.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662009000100011
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/S1415-43662009000100011
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.13 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess