کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1683378 | 1010504 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of ionizing radiations to produce new polysaccharides and proteins with enhanced functionality
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Treatment of polysaccharides with ionizing radiation either in the solid state or in aqueous solution leads to degradation. Using a mediating alkyne gas during the radiation treatment prevents the degradation of natural and synthetic polysaccharides and enables the introduction of different molecular and functional characteristics, as previously achieved with synthetic polymers. The molecular weight can be increased and hydrogel forms of the polysaccharides or proteins can be produced, probably by a cross-linking mechanism involving addition of C-C bond between two chains. The product has higher viscosity and is more elastic than the original material and, therefore, gives enhanced functionality. Gum Arabic (Acacia senegal) irradiated for 6.2Â kGy is used here to demonstrate the enhanced emulsification performance and stability compared with the original material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 265, Issue 1, December 2007, Pages 37-43
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 265, Issue 1, December 2007, Pages 37-43
نویسندگان
S. Al-Assaf, G.O. Phillips, P.A. Williams, T.A. du Plessis,