Related Experiment Video
Updated: Feb 13, 2026

Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
Published on: July 3, 2020
Stability, microstructure and rheological behavior of konjac glucomannan-zein mixed systems
Xuewen Ni1, Kai Wang1, Kao Wu1
1Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan 430068, China; School of Biological Engineering and Food Science, Hubei University of Technology, Wuhan 430068, China.
Abstract:
This study aims to investigate the stability, microstructure and rheological properties of konjac glucomannan (KGM)/zein mixed systems in different mixing ratios. A phase diagram was established by centrifugation and visual observation. KGM/zein could form a stable homogeneous dispersion with appropriate mixing formula, and the particle size in mixed systems increased with increasing zein content. During storage, zein particles increased in size but were homogeneously distributed in the continuous phase of KGM without flocculation as observed by confocal light scanning microscopy. The rate of particle size change slowed down with increasing concentration of KGM. Transmission electron microscopy and atomic force microscopy images showed that zein particles were distributed in the KGM molecular network. The mixed systems showed shear-thinning behavior, and the temperature dependence of the viscosity was well-fitted by the Arrhenius equation. Based on dynamic viscoelasticity analysis, the mixed systems showed typical behaviors for entangled polymer solutions. The shift of cross-over frequency of storage (G') and loss (G″) moduli to higher frequencies with increasing concentration of zein implied the shortening of the lifetime of the temporary entangled junction in the mixed systems.
More Related Videos
Related Concept Videos
BIBO stability of continuous and discrete -time systems
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
Nuclear Stability
To hold positively charged protons together...
RNA Stability
Stability
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
What is Behavior?
Mixing Concrete

