کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
603992 880279 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of rheological interactions of Gleditsia triacanthos gum with some hydrocolloids: Effect of hydration temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Characterization of rheological interactions of Gleditsia triacanthos gum with some hydrocolloids: Effect of hydration temperature
چکیده انگلیسی

In this study, synergistic interactions were investigated between Gleditsia triacanthos (Gt) gum and some commonly used hydrocolloids (xanthan, κ-carrageenan, carboxymethyl cellulose (CMC) and alginate). Two different hydration temperatures (25 and 80 °C) were used and apparent viscosity of gum blends was determined. Linear and nonlinear fuzzy models were constructed for the estimation of apparent viscosity of gum blends. Gt gum showed non-Newtonian pseudoplastic behavior in the range of studied concentrations and shear rates. Gt generally showed good synergistic interactions with selected hydrocolloids and the best one was Gt-xanthan blend because of the good interaction due to the association of xanthan double helicoidal structure with sequences of unsubstituted mannosyl residues in the galactomannan based Gt gum. The effect of hydration temperature was found to be very significant in terms of rheological behavior of gum solution. Fuzzy models showed very high estimation accuracy compared to linear models (R2 > 0.999). All of these findings showed that gum obtained from Gleditsia triacanthos seeds, sole or combined with other hydrocolloids can be utilized as a new and efficient thickening agent and fuzzy models can be used to predict the apparent viscosity of gum blends.

Figure optionsDownload as PowerPoint slideHighlights
► Gleditsia triacanthos (Gt) gum showed non-Newtonian pseudoplastic behavior.
► Gt generally showed good synergistic interactions with selected hydrocolloids and the best one was Gt-xanthan blend.
► The effect of hydration temperature was found to be very significant in terms of rheological behavior of gum solution.
► Fuzzy models showed very high estimation accuracy compared to linear models (R2 > 0.999).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Hydrocolloids - Volume 32, Issue 2, August 2013, Pages 453–462
نویسندگان
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