化工学报Issue(7)：2528-2533,6.DOI:10.11949/j.issn.0438-1157.20150378
酸催化水解阿拉伯胶制备L-阿拉伯糖工艺
Optimization of acid hydrolysis for preparing L-arabinose from Gum Arabic
摘要
Abstract
Gum Arabic, an ideal raw material for preparing L-arabinose, can be catalytically hydrolyzed by sulfur acid to obtain the hydrolysate containing L-arabinose, D-galactose and L-rhamnose. In order to ensure the stability of subsequent purification process as well as product quality, optimization of the acid hydrolysis process is necessary. In this work, single factor experiments are performed to determine the key parameters of acid hydrolysis reaction. The effects of reaction time, acid concentration, temperature and solid-to-liquid ratio on the hydrolysis are investigated. The results show that the temperature affects more significantly on the yield rate of L-arabinose. The degree of hydrolysis as high as 85%and the relative purity of L-arabinose up to 85%or 87%can be obtained under the optimized hydrolysis conditions of 90 min reaction at 100℃ or 200 min reaction at 90℃with 0.1 mol·L−1 H2SO4 and solid-to-liquid ratio of 1:10 (g/ml).关键词
阿拉伯胶/L-阿拉伯糖/催化水解/催化剂/反应Key words
Gum Arabic/L-arabinose/catalytic hydrolysis/catalyst/reaction分类
轻工纺织引用本文复制引用
黄敏慧,鲍宗必,段舒然,邢华斌,杨亦文,任其龙..酸催化水解阿拉伯胶制备L-阿拉伯糖工艺[J].化工学报,2015,(7):2528-2533,6.基金项目
国家“十二五”科技支撑计划项目(2011BAD23803)；浙江大学馥莉食品研究院基金项目(KY201304)。 （2011BAD23803）
