کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1390779 | 983142 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sulfated xylomannans isolated from red seaweeds Chondrophycus papillosus and C. flagelliferus (Ceramiales) from Brazil
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Sulfated xylomannans were isolated from two species of genus Chondrophycus by aqueous extraction followed by KCl fractionation. Structural determination of the native, desulfated and Smith-degraded KCl-precipitated polysaccharides carried out by composition and methylation analysis and NMR spectroscopy (1D and 2D experiments) showed the following general structure:Figure optionsDownload as PowerPoint slideThese xylomannans present different degrees of branching (15–25%) by β-d-Xylp (70–80%) and β-d-Manp-2-S (20–30%) and molecular weights (33–222 kDa). This is the first report of the presence of a sulfated xylomannan in species of order Ceramiales.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 342, Issue 18, 28 December 2007, Pages 2766–2775
Journal: Carbohydrate Research - Volume 342, Issue 18, 28 December 2007, Pages 2766–2775
نویسندگان
Marco A. Cardoso, Miguel D. Noseda, Mutue T. Fujii, Rosiane G.M. Zibetti, Maria E.R. Duarte,