کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1408750 1501770 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
NMR relaxation investigation of the native corn starch structure with plasticizers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
NMR relaxation investigation of the native corn starch structure with plasticizers
چکیده انگلیسی

The influences of starch, glycerol and water ratios on the structure, morphology and dynamics of starch polymer chains were investigated by NMR relaxation method. The 1H NMR CPMG echo decays and saturation recovery build-up curves were recorded and analyzed using the UPIN algorithm in order to get the spin-spin T2 and spin-lattice T1 relaxation times distributions. Significant differences between the CPMG curves were observed for native starch and the formulas in which water is added, whether these have or not glycerol in composition. For the formula which contains both plasticizers (water and glycerol), the CPMG curves decay slowly, indicating the presence of more mobile components.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1044, 24 July 2013, Pages 128–133
نویسندگان
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