引用本文:
【打印本页】   【下载PDF全文】   【View/Add Comment】  【Download reader】  【 Close 】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被：浏览 1475次   下载 1495次 本文二维码信息
码上扫一扫！
分享到： 微信 更多
字体:加大+|默认|缩小-
琼枝卡拉胶与海萝胶结构的13C-NMR分析
纪明侯1, 顾柯楠1
中国科学院海洋研究所
摘要:
关键词:  
DOI：
分类号:
基金项目:
13C-NMR SPECTROSCOPIC ANALYSIS OF CARRAGEENAN FROM EUCHEUMA GELATINAE AND FUNORAN FROMGLOIOPELTIS FURCATA
Abstract:
The carrageenan extracted from Eucheuma gelatinae collected irom South China and funoran from Gloiopeltis furcata from North China were fractionated on EDAE-Sephadex A 50 column, and the structure of their main fractions was studied using 13C-NMR spectros-copy. The 13C-NMR spectrum of the main fraction of Eucheuma showed that β-carrageenan or desulfated K-carrageenan composed of(1→3)-β-D-ga]actosyl-(1→4)-3, 6-anhydro-μ-D-gala-ctose disaccharide repeat unit is the predominant component, and K-carrageenan the next one. The 13C-NMR spectra of the major fractions of Gloiopeltis eluted with 1.0M and 2.5 M NaCl indicated they are agar-type polysaccharode, 6-OSO3-agarose, consisting of (1→3) -6-OSO3-β-D-galactosyl-(1→4)-3, 6-α-L-galactose disaccharide repeat unit as a nearly single constituent in block in agar molecules.
Key words:  
Copyright ©  Editorial Office for Marine Sciences Copyright©2008 All Rights Reserved
Supervised by: Chinese Academy of Sciences (CAS)   Sponsored by: Institute of Oceanology, CAS
Address: 7 Nanhai Road, Qingdao, China.  Postcode: 266071  Tel: 0532-82898755  E-mail: bjb@qdio.ac.cn
Technical support: Beijing E-Tiller Co.,Ltd.