Study of gelatin-agar intermolecular aggregates in the supernatant of its coacervate

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Abstract
Intermolecular interaction leading to formation of aggregates between gelatin, a polyampholyte, and agar, a polysaccharide was studied in the supernatant of the complex coacervate formed by these biopolymers. Electrophoresis, laser light scattering and viscometry data were used to determine the interaction and the physical structure of these intermolecular soluble complexes by modeling these to be prolate ellipsoids of revolution (rod-like structures with well defined axial ratio and Perrin's factor). Solution ionic strength was found to reduce the axial ratio of these complexes implying the presence of screened polarization-induced electrostatic interaction between the two biopolymers. (c) 2007 Elsevier B.V. All rights reserved.
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Singh, Salesh
Bohidar, Himadri
Bandyopadhyay, Srikanta
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Publication Year
2007
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Journal Article
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UNSW Faculty