沙枣多糖脱色材料及脱色条件的优选  

Optimization for conditions on elaeagnus polysaccharides decoloring material

作　　者：李元元[1] 李鑫[2] 廉宜君[1] 李炳奇[1] 

机构地区：[1]石河子大学化学化工学院,石河子832000 [2]石河子大学生命科学学院,石河子832000

出　　处：《食品科技》2012年第3期210-213,共4页Food Science and Technology

基　　金：教育部国际合作项目"春晖计划"(Z2006-1-83003);新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室开放基金课题(BR0904)

摘　　要：目的:研究并优化沙枣多糖的脱色材料与脱色条件。方法:以多糖保留率和脱色率为考察指标,比较颗粒活性炭、粉状活性炭、聚酰胺3种脱色剂的脱色效果,确定一种较好的沙枣多糖脱色剂,并通过单因素和正交实验,优化该脱色剂的脱色条件。结果:颗粒活性炭脱色效果优于其他2种脱色剂。结论:以颗粒活性炭为沙枣多糖的脱色材料,其最佳工艺条件为:脱色时间75min,脱色温度55℃,脱色次数3次。在最佳工艺条件下,沙枣多糖的脱色率为45.52%,多糖保留率达95.55%。Objective： To research and optimize the process conditions of decolorization to elaeagnus polysaccharide. Methods： By setting polysaccharide retention and decolorization rate as the observing indexes, comparing the granular activated carbon, powdered activated carbon and polyamide three different bleaching effect of depigmenting agents, choosing a single good factor and orthogonal tests. Results： Granular activated carbon is better than the other two bleaching agents. Conclusion： Granular activated carbon decolorization optimal parameters： the best technological conditions are decolorization time 75 min, bleaching temperature 55 % and 3 times bleaching. Under these conditions, the decolorization rate of elaeagnus 45.52% polysaccharide, and polysaccharide retention rate of 95.55%.

关 键 词：沙枣 多糖 脱色 

分 类 号：R284.2[医药卫生—中药学]