| Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta) | |
| Zhang, QB; Qi, HM; Zhao, TT; Deslandes, E; Ismaeli, NM; Molloy, F; Critchley, AT | |
| 2005-10-31 | |
| 发表期刊 | CARBOHYDRATE RESEARCH
 |
| ISSN | 0008-6215 |
| 卷号 | 340期号:15页码:2447-2450 |
| 文章类型 | Article |
| 摘要 | The structure of a polysaccharide from the red seaweed, Porphyra capensis, growing along the coast of Namibia and South Africa was investigated. Algae growing at different sites and collected at different times gave a polysaccharide extract with similar chemical components. FTIR and NMR spectral analysis showed that the polysaccharide from P. capensis had a typical porphyran structure. It has the linear backbone of alternating 3-linked beta-D-galactose and 4-linked alpha-L-galactose-6-sulfate or 3,6-anhydro-alpha- L-galactose units. The ratio of alpha-L-galactose-6-sulfate and the 3,6-anhydrogalactose is 121, as reflected by a H-1 NMR spectrum. A high degree of methylation occurred at the C-6 position of the D-galactose units. The degree of methylation was 0.64 for the D-galactose residues. (C) 2005 Elsevier Ltd. All rights reserved.; The structure of a polysaccharide from the red seaweed, Porphyra capensis, growing along the coast of Namibia and South Africa was investigated. Algae growing at different sites and collected at different times gave a polysaccharide extract with similar chemical components. FTIR and NMR spectral analysis showed that the polysaccharide from P. capensis had a typical porphyran structure. It has the linear backbone of alternating 3-linked beta-D-galactose and 4-linked alpha-L-galactose-6-sulfate or 3,6-anhydro-alpha- L-galactose units. The ratio of alpha-L-galactose-6-sulfate and the 3,6-anhydrogalactose is 121, as reflected by a H-1 NMR spectrum. A high degree of methylation occurred at the C-6 position of the D-galactose units. The degree of methylation was 0.64 for the D-galactose residues. (C) 2005 Elsevier Ltd. All rights reserved. |
| 关键词 | Porphyra Capensis Polysaccharide Structure Methylation |
| 学科领域 | Biochemistry & Molecular Biology ; Chemistry, Applied ; Chemistry, Organic |
| DOI | 10.1016/j.carres.2005.08.009 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000232645600013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3554 |
| 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 100039, Peoples R China 3.Univ Western Brittany, Lebham European Inst Marine Studies, F-29280 Plouzane, France 4.Univ Namibia, Coastal Res Ctr, Henties Bay, Namibia 5.Degussa Texturant Syst France SAS, F-50500 Baupte, France |
| 推荐引用方式 GB/T 7714 | Zhang, QB,Qi, HM,Zhao, TT,et al. Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta)[J]. CARBOHYDRATE RESEARCH,2005,340(15):2447-2450. |
| APA | Zhang, QB.,Qi, HM.,Zhao, TT.,Deslandes, E.,Ismaeli, NM.,...&Critchley, AT.(2005).Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta).CARBOHYDRATE RESEARCH,340(15),2447-2450. |
| MLA | Zhang, QB,et al."Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta)".CARBOHYDRATE RESEARCH 340.15(2005):2447-2450. |
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