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Published in: Colloid and Polymer Science 1/2018

22-11-2017 | Original Contribution

Zein self-assembly using the built-in ultrasonic dialysis process: microphase behavior and the effect of dialysate properties

Authors: Guijin Liu, Jialing Feng, Wei Zhu, Yanbin Jiang

Published in: Colloid and Polymer Science | Issue 1/2018

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Abstract

The microphase behavior at different time scales was investigated to understand the mechanism of zein self-assembly during the built-in ultrasonic dialysis process (BUDP) in this study. The results indicated that the mutual mass transfer between zein solution and dialysate changed the solvent polarity, which caused the conformational transition of zein molecules, formation of stable droplets under the ultrasonic field, and further solidification of the compact microspheres. The effects of dialysate properties on zein self-assembly were investigated. The results showed that both pH and ionic strength had a great effect on the size, zeta potential, and morphology of the obtained zein particles, where zein microspheres with a size around 1–2 μm and zeta potential > 30 mV were obtained at pH 4–pH 8 and NaCl concentration ≤ 10 mM. And non-ionic Tween 60 could be used as a potential surfactant to improve the stability of zein samples through a physical combination.

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Metadata
Title
Zein self-assembly using the built-in ultrasonic dialysis process: microphase behavior and the effect of dialysate properties
Authors
Guijin Liu
Jialing Feng
Wei Zhu
Yanbin Jiang
Publication date
22-11-2017
Publisher
Springer Berlin Heidelberg
Published in
Colloid and Polymer Science / Issue 1/2018
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-017-4238-y

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