کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1385202 | 982435 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of a low-molecular weight fraction by free radical depolymerization of the sulfated galactan from Schizymenia binderi (Gigartinales, Rhodophyta) and its anticoagulant activity
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Depolymerization of the sulfated galactan from Schizymenia binderi with H2O2 in the presence of copper (II) acetate afforded a homogeneous fraction (MW 8500) in 50% yield. Alkylation and NMR spectroscopy analysis of this fraction indicated the presence of an agaran–carrageenan hybrid polysaccharide composed of 3-linked β-d-galactopyranosyl residue partially sulfated at position O-2 and 4-linked α-d-galactopyranosyl and α-l-galactopyranosyl residues mainly sulfated at position O-3 and glycosylated at position O-2. Discreet anticoagulant activity, similar to that of the native polysaccharide was found in the derivative obtained by sulfation of this fraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 66, Issue 2, 27 October 2006, Pages 208–215
Journal: Carbohydrate Polymers - Volume 66, Issue 2, 27 October 2006, Pages 208–215
نویسندگان
Elisa A. Zúñiga, Betty Matsuhiro, Enrique Mejías,