Binding Property of Chondroitin Sulfate and Cupric Ion

Abstract

Abstract: This experiment studied the ChS-Cu (chondroitin sulfate-Cu) complex, analyzed its spectroscopic and thermody- namics characteristics, and its three chemically reduced or sulfonated or desulfate derivatives, and compared the binding properties of unmodified ChS and its three chemically reduced or sulfonated or desulfate derivatives by fluorescence quenching assay and equilibrium dialysis technique. The changes of spectroscopic assay and thermodynamics of ChS-Cu complex exhibit the mating reactions between ChS and Cu2+. The results of luorescence quenching assay and equilibrium dialysis experiments showed that the carboxy group but not sulfate group is involved in this reaction.

Key words: chondroitin sulfate, derivative, binding property

XIONG Shuang-Li, JIN Zheng-Yu. Binding Property of Chondroitin Sulfate and Cupric Ion[J]. FOOD SCIENCE, 2008, 29(4): 54-57.

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Binding Property of Chondroitin Sulfate and Cupric Ion

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