کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1386908 982540 2011 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly efficient synthesis and antioxidant activity of O-(aminoethyl)inulin
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موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Highly efficient synthesis and antioxidant activity of O-(aminoethyl)inulin
چکیده انگلیسی

O-(aminoethyl)inulin was prepared from inulin using ethylene imine, a kind of significant building block of chemical modification. The preparation of the O-(aminoethyl)inulin was studied in such catalytic systems as: water (H2O)/sodium hydroxide (NaOH), N-methylpyrrolidinone (NMP)/triethylamine (Et3N) and benzene/anhydrous alchlor (AlCl3). Each of these systems was evaluated in terms of reaction yield rate and degree of substitute. Of all the reaction systems, the H2O/NaOH method turned out to be the most recommended means for the preparation of the O-(aminoethyl)inulin with a yield rate 82% and 0.76 degree of substitute. Additionally, the antioxidant effects of inulin and its related derivatives of different degree of substitute were investigated in two model systems. Comparing with inulin, modified inulin exhibited a moderate hydroxyl radical scavenging ability and considerable superoxide-radical scavenging activity. And this may suggest their potential employment as a prohibitor of the superoxide-radical. The synthesized derivatives were characterized by 1HNMR and FT-IR spectra.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 83, Issue 3, 30 January 2011, Pages 1240–1244
نویسندگان
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