کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8329709 1540228 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physical stability and rheological properties of konjac glucomannan-ethyl cellulose mixed emulsions
ترجمه فارسی عنوان
پایداری فیزیکی و خواص رئولوژیکی امولسیون های مخلوط کنجک گلوکومنان-اتیل سلولز
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
Konjac glucomannan (KGM)/ethyl cellulose (EC) could form a stable homogeneous emulsion with appropriate mixing formula. This study aimed to investigate the stable mechanism of KGM/EC emulsion at different mixing ratio through its rheological properties, and droplet size and morphology changes with up to 6 days storage time. Though emulsions samples with high KGM content had larger droplet size and worse uniformity at the fresh stage, they appeared to be more stable and droplets growth rate were slow during storage. Aggregation and morphology of droplets could be observed under confocal microscopy. Shear-thinning behavior were found in mixed emulsions, and mainly accredited to the KGM component. The effect of temperature on viscosities of the emulsions was well-described by Arrhenius equation. Increased KGM content led to larger storage modulus (G′) and loss modulus (G″), and the difference in cross-over point of G′ and G″ implied changes in microstructures of the emulsions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 92, November 2016, Pages 423-430
نویسندگان
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