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The textural properties and microstructure of konjac glucomannan - tungsten gels induced by DC electric fields

Wang, Lixia, Zhuang, Yuanhong, Li, Jingliang, Pang, Jie and Liu, Xiangyang 2016, The textural properties and microstructure of konjac glucomannan - tungsten gels induced by DC electric fields, Food chemistry, vol. 212, pp. 256-263, doi: 10.1016/j.foodchem.2016.05.162.

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Title The textural properties and microstructure of konjac glucomannan - tungsten gels induced by DC electric fields
Author(s) Wang, Lixia
Zhuang, Yuanhong
Li, JingliangORCID iD for Li, Jingliang orcid.org/0000-0003-0709-2246
Pang, Jie
Liu, Xiangyang
Journal name Food chemistry
Volume number 212
Start page 256
End page 263
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-12-01
ISSN 0308-8146
Keyword(s) DC electric field
Gel
Konjac glucomannan (KGM)
Microstructure
Textural properties
Summary Konjac glucomannan - tungsten (KGM-T) gels were successfully prepared under DC electric fields, in the presence of sodium tungstate. The textural properties and microstructure of the gels were investigated by Texture Analyzer, Rheometer and SEM. Based on the response surface methodology (RSM) results, the optimum conditions for KGM-T gel springiness is 0.32% sodium tungstate concentration, 0.54% KGM concentration, 24.66V voltage and 12.37min treatment time. Under these conditions, the maximum springiness value of KGM-T gel is 1.21mm. Steady flow measurement indicated that KGM-T gel showed characteristic non-Newtonian pseudoplastic behaviour, with low flow behaviour indexes in the shear thinning region. SEM demonstrated the porosity of the freeze-dried samples. These findings may pave the way to use DC electric fields for the design and development of KGM gels and to apply KGM gels for practical applications.
Language eng
DOI 10.1016/j.foodchem.2016.05.162
Field of Research 091205 Functional Materials
030302 Nanochemistry and Supramolecular Chemistry
MD Multidisciplinary
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084940

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Fri, 15 Jul 2016, 13:38:54 EST

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