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厚叶切氏海带多糖的提取分离及其结构表征
引用本文:吴建东,于广利,李苗苗,赵峡,王长云,刘涛,顾晨曦.厚叶切氏海带多糖的提取分离及其结构表征[J].中国海洋大学学报(自然科学版),2011(Z2):127-130,136.
作者姓名:吴建东  于广利  李苗苗  赵峡  王长云  刘涛  顾晨曦
作者单位:中国海洋大学海洋药物教育部重点实验室;中国海洋大学山东省糖科学与糖工程重点实验室;中国海洋大学生命学院;
基金项目:国家自然科学基金项目(3107072430870506); 国家海洋局公益专项(201005024); 长江学者和创新团队发展计划项目(IRT0944)资助
摘    要:本文以厚叶切氏海带(Kjellmaniella crassifolia)为原料,经提取分离获得4种多糖(KW1,KW2,KA1和KA2)。运用电泳、高效液相色谱(HPLC)、高效凝胶渗透色谱(HPGPC)及核磁共振氢谱(1H-NMR)法分别对其单糖组成、相对分子量(Mr)以及结构进行分析。结果表明,KW1与KA1是Mr为520 kD和430 kD且M/G(6.14和1.90)显著不同的褐藻胶;KW2是以岩藻糖(82%)为主的岩藻糖硫酸酯;KA2是以半乳糖(34%)、岩藻糖(27%)和甘露糖(21%)为主的杂聚硫酸多糖。KW2和KA2的Mr和硫酸基含量分别为536 kD和427 kD及30%和21%。经1H-NMR分析表明,KW2的硫酸酯基主要存在于岩藻糖残基的C2和C4位。

关 键 词:厚叶切氏海带  褐藻胶  岩藻糖硫酸酯  结构特性

Extraction,Isolation and Structural Characterization of Polysaccharides from Kjellmaniella crassifolia
WU Jian-Dong,YU Guang-Li,LI Miao-Miao,ZHAO Xia,WANG Chang-Yun,LIU Tao ,GU Chen.Extraction,Isolation and Structural Characterization of Polysaccharides from Kjellmaniella crassifolia[J].Periodical of Ocean University of China,2011(Z2):127-130,136.
Authors:WU Jian-Dong    YU Guang-Li  LI Miao-Miao  ZHAO Xia  WANG Chang-Yun  LIU Tao  GU Chen
Institution:WU Jian-Dong1,2,YU Guang-Li1,LI Miao-Miao2,ZHAO Xia2,WANG Chang-Yun1,LIU Tao 3,GU Chen3(1.The Key Laboratory of Marine Drugs,Ministry of Education,2.Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering,3.College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China)
Abstract:Four kinds of polysaccharides(KW1,KW2,KA1 and KA2) were extracted and separated from Kjellmaniella crassifolia.Electrophoresis,HPLC,HPGPC and 1H-NMR were used to analyze monosaccharide composition and molecular size.Results showed that alginates KW1 and KA1 were different in molecular size(520kD and 430 kD),M/G value(6.14 and 1.90) and fine structure.A further comparison on alginate samples and defined alginates was made and the mechanism of different alginates was claimed.Fucoidan KW2(82% Fuc;536 kD) and S...
Keywords:Kjellmaniella crassifolia  alginate  fucoidan  structural characters  
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