2007•China Food AdditivesRequires access

Study on extracting and purifying pigment from purple cabbage

Shi Bei-mei

Abstract

Object:To establish technics for separating and purifying pigment of purple cabbage.Methods:To optimize the conditions of extracting by orthogonal test,and to select a type of macoroporous resin after comparing adsorption rate and elution rate with each others,the type of macoroporous resin selected was studied on adsorption capability and elution parameters to pigment of purple cabbage.Results:The colour value of purple cabbage pigment could reach(E1%1cm520nm)87.06,the yield is 0.27%.Conclusion:The technics was good to extract and purify the pigment of purple cabbage.

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Key concepts: Pigment, Elution, Research Object, Yield (engineering), Chromatography, Chemistry, Adsorption, Materials science