Journal Of Texture Studies, ( ISI ), Volume (48), No (5), Year (2017-5) , Pages (470-484)

Title : ( Temperature dependency of the interaction between xanthan gum and sage seed gum: An interpretation of dynamic rheology and thixotropy based on creep test )

Authors: Seyed Mohammad Ali Razavi , Fataneh Behrouzian , Ali Alghooneh ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

The viscoelastic (transient and dynamic) and time-dependent rheological behaviors of XG (xanthan gum), SSG (sage seed gum) and their blends at various ratios (1-3, 1-1, and 3-1 SSG-XG) and temperatures (10, 30, and 50C) were investigated using creep and recovery analyses. The creep compliance was converted to stress relaxation data; then, the structural kinetic model satisfactorily fitted the time-dependent relaxation modulus. Furthermore, dynamic rheology of mixtures was investigated using creep analyses. The most important contribution of the Maxwell spring to deformation (53.51%), was that corresponding to the SSG at 50C and the most important contribution of the Maxwell dashpot to the maximum deformation, were those corresponding to the XG (61.44%) and 1-3 SSG-XG (58.91%) samples both at 50C. The breakdown rate constant (aÞ of the crosslinked gum structure in SSG and 3-1 SSG-XG under the application of external shear stress increases with temperature from 10 to 50C in the range of 0.14–0.32 (1/s) and 0.14–0.24 (1/s), respectively, whereas other dispersions showed the reverse trend. Among all dispersions, only XG and 1-3 SSG-XG demonstrated crossover frequency at 9.95 and 31.47 rad/s, respectively, at 50C, indicative of the lowest entanglement density for 1-3 SSG-XG. The greatest interaction between SSG and XG occurred for 3-1 ratio at 50C, which was confirmed by the Han curves.

Keywords

, compliance, creep, gum, synergy, viscoelastic, xanthan
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1064560,
author = {Razavi, Seyed Mohammad Ali and Behrouzian, Fataneh and Alghooneh, Ali},
title = {Temperature dependency of the interaction between xanthan gum and sage seed gum: An interpretation of dynamic rheology and thixotropy based on creep test},
journal = {Journal Of Texture Studies},
year = {2017},
volume = {48},
number = {5},
month = {May},
issn = {0022-4901},
pages = {470--484},
numpages = {14},
keywords = {compliance; creep; gum; synergy; viscoelastic; xanthan},
}

[Download]

%0 Journal Article
%T Temperature dependency of the interaction between xanthan gum and sage seed gum: An interpretation of dynamic rheology and thixotropy based on creep test
%A Razavi, Seyed Mohammad Ali
%A Behrouzian, Fataneh
%A Alghooneh, Ali
%J Journal Of Texture Studies
%@ 0022-4901
%D 2017

[Download]