Xylose production from sugarcane bagasse by surface response methodology

Revista Brasileira de Engenharia Agrícola e Ambiental

Paiva, José E. de¹  Maldonade, Iriani R.³  Scamparini, Adilma R. P.² 

[1] UFRPE, Recife;UNICAMP, Campinas;UFGD, Dourados

关键词: hemicellulose;    hydrolysis;    HPLC;    aldopentose;    renewable carbon sourceRESUMO Propôs-se neste trabalho;    otimizar a produção de xilose a partir do bagaço de cana-de-açúcar;   

DOI  :  10.1590/S1415-43662009000100011

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

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.

【 授权许可】

CC BY-NC