期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 209, 期 -, 页码 1914-1921出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.04.165
关键词
Carboxymethyl short chain amylose; Chitosan; Complex coacervation
资金
- National Natural Science Foundation of China [31571794, 31560437]
- National first-class discipline program of Food Science and Technology [JUFSTR20180204]
- Science and Technology Major Project of Guangxi [guikeAA17202029]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX21-2046]
The study found that complex coacervation occurred between CSA and HACC, with mass ratio and pH significantly influencing the complexation behavior. CSA/HACC complexes exhibited good pH and ionic strength stability, with electrostatic interactions, hydrogen bonding, and hydrophobic effects involved in the complexation process.
The complexation of carboxymethyl short-chain amylose (CSA) and hydroxypropyl trimethyl ammonium chloride chitosan (HACC) and the stability of CSA/HACC nanocomplex were investigated. Resonance light scattering (RLS), turbidity, nanoparticle size and zeta potential analyses revealed that the complex coacervation occurred between CSA and HACC. The mass ratio and pH markedly influenced the complexation behavior; CSA with a higher degree of substitution (DS0.2) altered the complexation at a lower mass ratio and pH, increasing the turbidity and RLS intensity. The results of particle size and zeta potential analyses indicated that CSA/HACC complexes possessed the good pH and ionic strength stability. In addition to electrostatic interactions, hydrogen bonding and hydrophobic effects were also determined to be involved in the complexation process using thermal titration calorimetry (ITC). Additionally, the process was spontaneous, and CSA with a higher DS showed stronger complexation ability. These results may enable the understanding of polysaccharide complex behaviors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据