کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
605919 | 1454446 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Galactomannan esters—A simple, cost-effective method of preparation and characterization
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Acetate, succinate and octenylsuccinate derivatives of galactomannans were prepared in anhydrous reaction conditions carried out at slightly elevated temperature (40–60 °C) using solid NaHCO3 as a mild base catalyst. Prior surface wetting of the reactants with ∼5% absolute ethyl alcohol gave derivatives with a higher degree of substitution, although it decreased the slurry viscosity. Use of NaHCO3 significantly minimized high pH-induced degradative reactions, and its quantitative removal later was easily accomplished by repeated washings with aqueous ethyl alcohol. FT-IR, 13C-NMR, HPSEC and SEM data provided additional structural information. These derivatives are useful as functional food ingredients.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Hydrocolloids - Volume 20, Issue 8, December 2006, Pages 1198–1205
Journal: Food Hydrocolloids - Volume 20, Issue 8, December 2006, Pages 1198–1205
نویسندگان
M.R. Savitha Prashanth, K.S. Parvathy, N.S. Susheelamma, K.V. Harish Prashanth, R.N. Tharanathan, A. Cha, G. Anilkumar,