کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7787829 | 1500625 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Ca2+, Fe2+ and Mg2+ on rheological properties of new food matrix made of modified cell wall polysaccharides from apple
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new food matrix made of modified cell wall polysaccharides (MPS) from apple pomace was developed. In this experiment, an effect of metal divalent ions: calcium, magnesium and iron ions on rheological properties of MPS was studied. An increase of Ca2+ or Fe2+ concentration in MPS suspensions significantly increased viscosity as well as elastic (Gâ²) and viscous (Gâ³) moduli. Contrary, Mg2+ addition caused a significant decrease of viscosity, Gâ² and Gâ³. Herschel-Bulkley's model fitted to shear stress vs. shear strain (flow curves) showed that calcium and iron ions increased pseudoplasticity and viscosity proportionally to concentration. The addition of any studied metal ions to MPS increased thixotropic effect. A temperature at the gel point increased when concentration increased to 9Â mM, then the gel points appeared at lower temperatures again for higher concentrations. This study showed that the MPS is an effective texture modifier with a controlled function by metal ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 547-555
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 547-555
نویسندگان
Joanna MierczyÅska, Justyna Cybulska, Bartosz SoÅowiej, Artur Zdunek,