کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10375866 | 880348 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
1D- and 2D-NMR spectroscopy studies of the polysaccharide gum from Spondias purpurea var. lutea
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Spondias purpurea var. lutea (Anacardiaceae) trees located in Venezuela, South America, produce a clear gum very soluble in water. The polysaccharide, from this gum, contains galactosyl, arabinosyl, xylosyl, rhamnosyl and uronic acid residues. Degraded gums A and B were prepared by mild acid hydrolysis and Smith degradation, respectively. Application of 1D- and 2D-NMR spectroscopy to the original gum and its degraded products, in combination with chemical data, led to confirm that the structure of the original polysaccharide contains 3-O- and 6-O-galactosyl residues, terminal and 3-O-α-l-arabinofuranosyl, terminal rhamnosyl residues and uronic acids, represented by β-d-glucuronic acid and its 4-O-methyl derivative. It was demonstrated that 2D-NMR spectroscopy is a good tool for structural elucidation of complex heteropolysaccharides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Hydrocolloids - Volume 19, Issue 1, January 2005, Pages 37-43
Journal: Food Hydrocolloids - Volume 19, Issue 1, January 2005, Pages 37-43
نویسندگان
Omaira Gutiérrez de G, Maritza MartıÌnez, Lilian Sanabria, Gladys León de Pinto, J.Manuel Igartuburu,