Affordable Access

Publisher Website

Electrokinetic characterisation of cationic amylopectin starch; screening by salt and screening by nanosized silica particles

Authors
Journal
Carbohydrate Research
0008-6215
Publisher
Elsevier
Publication Date
Volume
304
Identifiers
DOI: 10.1016/s0008-6215(97)00266-8
Keywords
  • Starch
  • Silica
  • Electrokinetic
  • Electrokinetic Sonic Amplitude
  • Phase Analysis Light Scattering
  • Polyelectrolyte Complex
  • Retention Aids
  • Mobility

Abstract

Abstract The screening of cationic amylopectin starch with salt has been investigated using the technique of electrokinetic sonic amplitude. The dynamic mobility was found to decrease as the electrolyte concentration increases. The experimental data were satisfactorily explained by applying a porous sphere model. The radius of the porous sphere could be used to evaluate the contraction of the amylopectin molecule as the electrolyte concentration increases. The screening of cationic amylopectin starch with nanosized silica particles was also followed using the technique of phase analysis light scattering. The formation of large macroscopic flocs could be explained in terms of available cationic and anionic sites of the initially formed polyelectrolyte complexes between one amylopectin molecule and a number of small silica particles. The screening of cationic amylopectin starch with salt has been investigated using the technique of electrokinetic sonic amplitude. The dynamic mobility was found to decrease as the electrolyte concentration increases. The experimental data were satisfactorily explained by applying a porous sphere model. The radius of the porous sphere could be used to evaluate the contraction of the amylopectin molecule as the electrolyte concentration increases. The screening of cationic amylopectin starch with nanosized silica particles was also followed using the technique of phase analysis light scattering. The formation of large macroscopic flocs could be explained in terms of available cationic and anionic sites of the initially formed polyelectrolyte complexes between one amylopectin molecule and a number of small silica particles.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments