Solution Properties of Mixed Starch/Chitosan Revealed by Resonance Light Scattering

被引：0

作者：

Hu Yong ^{[1
]}

Fu Xiong ^{[2
]}

Chen Xu-dong ^{[3
]}

Zhong Nan-jing ^{[1
]}

机构：

[1] Guangdong Pharmaceut Univ, Sch Food Sci, Zhongshan 528458, Peoples R China

[2] S China Univ Technol, Coll Light Ind & Food Sci, Guangzhou 510640, Guangdong, Peoples R China

[3] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2012年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Starch; Chitosan; Complex; Solution property; Resonance light scattering; POLY(ACRYLIC ACID); COMPLEX; CONFORMATION; POLYSACCHARIDES; NANOPARTICLES; AGGREGATION; COPOLYMERS;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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 Fe3+. It indicates that Fe3+ 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.

引用

页码：1107 / 1111

页数：5

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