Chemical Investigation of Carrageenan from the Red alga Sarconema filiforme (Gigartinales, Rhodophyta) of Indian Waters

被引：0
|
作者：
Kumar, Sanjay [1 ]
Mehta, Gaurav K. [1 ]
Prasad, Kamalesh [1 ]
Meena, Ramavtar [1 ]
Siddhanta, Arup K. [1 ]
机构：
[1] CSIR, Cent Salt & Marine Chem Res Inst, Marine Biotechnol & Ecol Discipline, Bhavnagar 364002, Gujarat, India
来源：
NATURAL PRODUCT COMMUNICATIONS | 2011年 / 6卷 / 09期
关键词：
Sarconema filiforme; alpha/i carrageenan; Pyruvated alpha carrageenan; Methylated carrageenan; FAMILY SOLIERIACEAE GIGARTINALES; CELL-WALL POLYSACCHARIDES; STRUCTURAL-ANALYSIS; NMR-SPECTROSCOPY; SPECTRA; GALACTANS; C-13-NMR; SAMPLES; IR;
D O I：
暂无
中图分类号：
R914 [药物化学];
学科分类号：
100701 ;
摘要：
Sulphated galactan (SFA) containing alpha (alpha), iota (i) and pyruvated alpha-carrageenans (17.6:18.8:25.3 mol %) was extracted and characterized from Sarconema filiforme of Indian waters. The SFA and its alkali modified derivative (SFAM) were composed of D-galactose, 3, 6-anhydro-D-galactose, 6-O-methylated-D-galactose (64.5:23.0:9.8 and 59.6:29.8:7.6 mol %) respectively. The linkage analysis, physicochemical analysis, infra red and C-13 nuclear magnetic resonance spectra of SFA along with linkage analysis of the desulphated derivative (SFD) of SFA, reveals that it was a hybrid/combination of alpha/i carrageenan as well as 3-linked 4',6'-O-(1-carboxyethylidene)-galactose (pyruvated alpha carrageenan) and 6-O-methylated alpha-carrageenan. The flow behavior of SFA obtained from rheological measurements suggested strong network formation in presence of 1% aqueous KCl and CaCl2 solutions.
引用
收藏
页码：1327 / 1332
页数：6
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