کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10597030 | 981955 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and structural elucidation of a glucomannogalactan from marine fungus Penicillium commune
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
The coral-associated fungus Penicillium commune produces an extracellular polysaccharide, FP2-1, when grown in potato dextrose-agar medium. FP2-1 was isolated from the fermented broth using anion-exchange and size-exclusion chromatography, and its structure was elucidated by chemical and spectroscopic analyses, including detailed nuclear magnetic resonance spectroscopy. The results showed that FP2-1 was a glucomannogalactan with a molar ratio of galactose, mannose and glucose of 3.9:1.9:1.0. Structure of FP2-1 may be represented, at an average, as a backbone of (1â2)-linked α-mannopyranose with the every second residue substituted at position 6 by a pentasaccharide branch. The branches consist of four (1â6)-linked β-galactofuranose residues with terminal α-glucopyranose residue attached to the last galactofuranose residue at position 2. FP2-1 was a novel galactofuranose-containing extracellular polysaccharide differing from previously described extracellular polysaccharides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 97, Issue 2, 12 September 2013, Pages 293-299
Journal: Carbohydrate Polymers - Volume 97, Issue 2, 12 September 2013, Pages 293-299
نویسندگان
Yanli Chen, Wenjun Mao, Junfeng Wang, Weiming Zhu, Chunqi Zhao, Na Li, Chunyan Wang, Mengxia Yan, Tao Guo, Xue Liu,