低聚木糖分离纯化的研究  

Study on the separation and purification of xylooligosaccharieds

作　　者：韩玉洁 徐冬[1] 徐忠[1] 

机构地区：[1]哈尔滨商业大学食品学院,黑龙江哈尔滨150076

出　　处：《食品工业科技》2006年第7期155-158,共4页Science and Technology of Food Industry

基　　金：黑龙江省自然科学基金项目(B0304);黑龙江省教育厅科学技术研究项目(10551084)。

摘　　要：利用Freundlich吸附等温方程对活性炭和阴离子交换树脂的色素吸附效能进行了评价,选择活性炭Ly-T-ac和离子交换树脂D-301作为低聚木糖液中色素的吸附剂。通过单因素实验确定了低聚木糖液的活性炭脱色条件为:温度80℃,pH5.0,活性炭用量4%,脱色时间1.5h,活性炭对糖液的脱色率为81.40%。阴离子交换树脂D-301在9%用量,温度40℃脱色2.5h下对糖液的脱色率为40.50%。低聚木糖糖液经过阴阳离子交换树脂脱盐处理后,脱盐率为65.65%。Activated carbon and ion commonly used in purification. matters were exchange resin were The absorption evaluated with and activated carbon Ly xylooligosaccharieds effects on coloring Freundlich Equation, -T -ac and anion exchange resin D-301were chosen as pigment adsorbents. The optimum condition for decoloration with activated carbon was pH 5.0, 80 ℃, 1.5 h treatment and 4% carbon dosage. Under this condition, 81.40% of the pigment was removed. By treatment with 9% anion exchange resin D-301 at 40 ℃ for 2.5 h, 40.50% of the pigment was removed, and after the treatment with ion exchange resin D-301and 732, 65.65% salt was removed.

关 键 词：低聚木糖 活性炭 离子交换树脂 

分 类 号：TS201.1[轻工技术与工程—食品科学]