Production of xylose from sorghum straw using hydrochloric acid

被引：109

作者：

Herrera, A

Téllez-Luis, SJ

Ramírez, JA

Vázquez, M

机构：

[1] Univ Santiago de Compostela, Escuela Politecn Super, Dept Quim Analit, Area Tecnol Alimentos, Lugo 27002, Spain

[2] UAM Reynosa Aztlan, Dept Food Sci & Technol, Reynosa 88700, Tamaulipas, Mexico

来源：

JOURNAL OF CEREAL SCIENCE | 2003年 / 37卷 / 03期

关键词：

xylose; sorghum; straw; modelling; acid hydrolysis;

D O I：

10.1006/jcrs.2002.0510

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Xylose is a hemicellulosic sugar mainly used for its bioconversion to xylitol. Sorghum straw is a raw material for xylose production that has been studied scarcely. The objective of this work was to study the xylose production by hydrolysis of sorghum straw with hydrochloric acid at 122degreesC. Several concentrations of HCl (2-6%) and reaction time (0-300 min) were evaluated. Kinetic parameters of mathematical models for predicting the concentration of xylose, glucose, acetic acid and furfural in the hydrolysates were found. Optimal conditions for hydrolysis were 6% HCl at 122degreesC for 70 min, which yielded a solution with 16.2 g xylose/L, 3.8 g glucose/L, 2.0 g furfural/L and 1.9 g acetic acid/L. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：267 / 274

页数：8

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