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Research on Separation and Purification of Pigment in Black Glutinous Corncob by Aqueous Two-Phase System
Author(s): 
Pages: 42-46
Year: Issue:  3
Journal: Rain Fed Crops

Keyword:  黑糯玉米芯色素双水相体系分离纯化响应面法;
Abstract: [目的]建立一种萃取分离纯化食用色素的新方法.[方法]研究在聚乙二醇(PEG)/硫酸铵双水相体系中,PEG浓度、(NH4)2SO4用量、溶液酸碱度等因素对黑糯玉米色素萃取分离纯化的影响,并利用响应面分析法确定了最佳分离纯化条件.[结果]研究表明,PEG浓度20%、(NH4)2SO4用量为6 g、溶液pH为3.5时,黑糯玉米色素萃取率最高,分离纯化的效果最好.[结论]双水相体系可用于分离纯化黑糯玉米色素.
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