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Farahnaky A, Askari H, Majzoobi M, Mesbahi G. The Impact of Concentration, Temperature and pH on Dynamic Rheology of Psyllium Gels. Journal of Food Engineering 2010; 100: 294-301.

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Article

Self-assembly of Globulin Nanofibrils at Various Ionic Strength: Microstructure and Gels

1Department of Food, Guangzhou City Polytechnic, P.R. China

2Guangdong Key Lab. of Agricultural Product processing, Sericulture & Agri-food Research Institute GAAS, Guangzhou, P.R. China


American Journal of Nanomaterials. 2014, Vol. 2 No. 1, 8-12
DOI: 10.12691/ajn-2-1-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Lihua Huang, Yehui Zhang, Haibin Li. Self-assembly of Globulin Nanofibrils at Various Ionic Strength: Microstructure and Gels. American Journal of Nanomaterials. 2014; 2(1):8-12. doi: 10.12691/ajn-2-1-3.

Correspondence to: Yehui  Zhang, Guangdong Key Lab. of Agricultural Product processing, Sericulture & Agri-food Research Institute GAAS, Guangzhou, P.R. China. Email: zhangyhgx@gmail.com

Abstract

The effects of various ionic strengths and concentrations on the structure and gel properties of rice bran globulin(RBG) at pH 2.0 were investigated using atomic force microscopy(AFM) and rheometer. AFM showed the assembling RBG fibrils translated from strand beads to branch clustered, when electrostatic repulsive forces attenuated gradually with increasing ionic strength. The percolation model G'~(C-Cp)n calculate the theoretical critical concentration formed RBG gels at various ionic strengths(0), which decreased from 15.17±0.63 to 2.26±0.27 wt%. RBG gels according to the actual complexion had been drawn by computer, the color and state of cubes were simulated. A granular dense structure and intensive mesh like gel network was observed, and a more homogenous structure were formed at low ionic strength.

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