| Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica | |
Wang, Jing1,2 ; Zhang, Quanbin1; Zhang, Zhongshan1,2; Zhang, Hong1; Niu, Xizhen1
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| 2010-08-01 | |
| 发表期刊 | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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| ISSN | 0141-8130 |
| 卷号 | 47期号:2页码:126-131 |
| 文章类型 | Article |
| 摘要 | A low molecular weight fucogalactan, obtained from the brown seaweed Laminaria japonica, was separated into three fractions (LF1, LF2 and LF3) by DEAE-Sepharose FF column chromatography. All three fractions contained predominantly fucose, sulfate group and galactose. The results showed that the main fraction LF2 consisted of L-fucose, D-galactose and sulfate at a molar ratio 6:1:9. Structural study on the LF2 was carried out by NMR spectroscopy. The backbone of LF2 was primarily (1 -> 3)-linked alpha-L-fucopyranose residues (75%) and a few (1 -> 4)-alpha-L-fucopyranose linkages (25%). The branch points were at C-4 of 3-linked alpha-L-fucopyranose residues by beta-D-galactopyranose unites (35%, molar ratio) or at C-2 of 3-linked alpha-L-fucopyranose residues by non-reducing terminal fucose unites (65%, molar ratio). Sulfate groups occupied at position C-4 or C-2, sometimes C-2, 4 to fucose residues, and C-3 and/or C-4 to galactose residues. The structure of LF2 was supposed as following:; A low molecular weight fucogalactan, obtained from the brown seaweed Laminaria japonica, was separated into three fractions (LF1, LF2 and LF3) by DEAE-Sepharose FF column chromatography. All three fractions contained predominantly fucose, sulfate group and galactose. The results showed that the main fraction LF2 consisted of L-fucose, D-galactose and sulfate at a molar ratio 6:1:9. Structural study on the LF2 was carried out by NMR spectroscopy. The backbone of LF2 was primarily (1 -> 3)-linked alpha-L-fucopyranose residues (75%) and a few (1 -> 4)-alpha-L-fucopyranose linkages (25%). The branch points were at C-4 of 3-linked alpha-L-fucopyranose residues by beta-D-galactopyranose unites (35%, molar ratio) or at C-2 of 3-linked alpha-L-fucopyranose residues by non-reducing terminal fucose unites (65%, molar ratio). Sulfate groups occupied at position C-4 or C-2, sometimes C-2, 4 to fucose residues, and C-3 and/or C-4 to galactose residues. The structure of LF2 was supposed as following: [GRAPHICS] (C) 2010 Elsevier B.V. All rights reserved. |
| 关键词 | Fucogalactan Sulfate Structure Brown Algae Nmr Laminaria Japonica |
| 学科领域 | Biochemistry & Molecular Biology |
| DOI | 10.1016/j.ijbiomac.2010.05.010 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000279999200008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6160 |
| 专题 | 海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Zhang, Quanbin,Zhang, Zhongshan,et al. Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2010,47(2):126-131. |
| APA | Wang, Jing,Zhang, Quanbin,Zhang, Zhongshan,Zhang, Hong,&Niu, Xizhen.(2010).Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,47(2),126-131. |
| MLA | Wang, Jing,et al."Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 47.2(2010):126-131. |
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