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Solution Properties of Mixed Starch/Chitosan Revealed by Resonance Light Scattering 被引量：1

Solution Properties of Mixed Starch/Chitosan Revealed by Resonance Light Scattering
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摘要 The association behavior of starch and chitosan and the dilute solution properties of the starch/chitosan complex were investigated by means of resonance light scattering（RLS） spectra.The interaction between starch and chiotsan was proved by RLS.Based on the results,the appropriate association condition was selected.However,the solution property of starch/chitosan was affected greatly by external factors such as pH value and metal ionic strength.The change of pH,which causes the irreversible transition of solution from transparent into murky,provides some important information of partitioning behavior of the complex in solution.The durative enhancement of RLS intensity for the complex exhibited two inflexions and a plateau in the presence of a certain amount of Fe 3＋.It indicates that Fe 3＋ not only increases the RLS intensity,but also induces the micell-aggregate transition of the complex in solution.Moreover,the thermodynamic parameters for micell formation process at different temperatures,based on the RLS values,were calculated. The association behavior of starch and chitosan and the dilute solution properties of the starch/chitosan complex were investigated by means of resonance light scattering（RLS） spectra.The interaction between starch and chiotsan was proved by RLS.Based on the results,the appropriate association condition was selected.However,the solution property of starch/chitosan was affected greatly by external factors such as pH value and metal ionic strength.The change of pH,which causes the irreversible transition of solution from transparent into murky,provides some important information of partitioning behavior of the complex in solution.The durative enhancement of RLS intensity for the complex exhibited two inflexions and a plateau in the presence of a certain amount of Fe 3＋.It indicates that Fe 3＋ not only increases the RLS intensity,but also induces the micell-aggregate transition of the complex in solution.Moreover,the thermodynamic parameters for micell formation process at different temperatures,based on the RLS values,were calculated.
作者 HU Yong FU Xiong CHEN Xu-dong ZHONG Nan-jing
机构地区 School of Food Science College of Light Industry and Food Science School of Chemistry and Chemical Engineering
出处 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2012年第6期1107-1111,共5页 高等学校化学研究（英文版）
基金 Supported by the National Natural Science Foundation of China(No.50673104)
关键词 STARCH CHITOSAN Complex Solution property Resonance light scattering Starch Chitosan Complex Solution property Resonance light scattering
分类号 O636.1 [理学—高分子化学] Q523 [生物学—生物化学]
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参考文献18

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引证文献1

Chemical Research in Chinese Universities
2012年 第6期

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