کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10604715 | 982530 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural analysis of an arabinan isolated from alkaline extract of the endosperm of seeds of Caesalpinia bonduc (Nata Karanja)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A water-soluble arabinan (Mw â¼2.0 Ã 102 kDa) isolated from the alkaline extract of the endosperm of Caesalpinia bonduc was found to consist of T-Araf, (1 â 5)-Araf, (1 â 2,5)-Araf, and (1 â 2,3,5)-Araf in a relative proportion of approximately 3:2:1:1. On the basis of acid hydrolysis, methylation analysis, and NMR experiments (1H, 13C, TOCSY, DQF-COSY, NOESY, ROESY, HMQC, and HMBC), the structure of the polysaccharide was established. The proposed repeating unit of the polysaccharide has a branched backbone composed of (1 â 5)-α-l-arabinofuranose residues where branching occurs at O-2, O-3 positions of one residue terminated with two arabinofuranosyl residues and O-2 of another one terminated with same residue situated at adjacent position.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 84, Issue 1, 11 February 2011, Pages 471-476
Journal: Carbohydrate Polymers - Volume 84, Issue 1, 11 February 2011, Pages 471-476
نویسندگان
Soumitra Mandal, Sukesh Patra, Biswajit Dey, Sanjoy K. Bhunia, Kankan K. Maity, Syed S. Islam,