高校化学工程学报2016，Vol.30Issue(2)：299-304,6.DOI:10.3969/j.issn.1003-9015.2016.02.007
棉籽糖提取液树脂吸附脱色
Decoloration of Raffinose Extract Solutions via Macroporous Resin Adsorption
摘要
Abstract
Raffinose extract solutions contain considerable amounts of colored impurities, and those hydrophobic pigments can be removed by organic solvent extraction. However, there are still water-soluble pigments that can affect the product purity and crystallization processes. In this study, decoloration performance using several resins (HZ-801, HZ-803, HZ-806, HZ-818, D303 and D313) was compared with activated carbon, and the adsorption conditions were optimized according to raffinose decoloration ratio and loss ratio. The results show that HZ-818 is the best candidate with the highest decoloration ratio of 77.1% and loss ratio of 2.4%. The process shows the best cost-effectiveness when the dosage is 2.0 g resin per 10 mL solution under contact time of 9 h. The spent resin can be regenerated with 60% aqueous ethanol and the recycled resins are further used with decoloration ratio up to 94.0%.关键词
棉籽糖/吸附/树脂/脱色Key words
raffinose/adsorption/resin/decoloration分类
轻工纺织引用本文复制引用
段舒然,鲍宗必,闻光东,陈丽芬,杨亦文..棉籽糖提取液树脂吸附脱色[J].高校化学工程学报,2016,30(2):299-304,6.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(KY201304)。 （2011BAD23803）
