摘要
利用二氧化硫对低聚木糖浆进行硫漂脱色。试验结果表明 ,低聚木糖浆中的部分色素能与保险粉遇水分解产生二氧化硫反应 ,从而达到一定的硫漂脱色效果。pH和温度对保险粉硫漂脱色的效果有较大的影响 ,优化的条件为 :保险粉用量 0 6 %、70～ 80℃和 2 0min ,在此条件下的脱色率可达到 4 3%。硫漂脱色的产品色泽不稳定 ,但经过离子交换树脂以后 。
The bleaching of xylo oligosaccharied syrup with SO 2 was investigated.The results showed that part of the colorants in xylo oligosaccharide syrup could be reacted with sulfur dioxide released from vatpowder and bleached.The degree of decolorizing was affected by pH,temperature and the amount of vatpowder.The optimum parameter was 0.6%(vatpowder to sugar soluble solid),70～80 ℃ and 20 min.The color of xylo oligosaccharide syrup bleached with vatpowder was unstable,but it was stable after treatment with ion exchangers.
出处
《食品与机械》
CSCD
2002年第5期14-15,共2页
Food and Machinery
