Ramana K S, Rao E V
Department of Pharmaceutical Sciences, Andhra University, Visakhapatnam, India.
Phytochemistry. 1991;30(1):259-62. doi: 10.1016/0031-9422(91)84133-d.
A sulphated heteropolysaccharide, [alpha]27D + 59.9 degrees, has been isolated from a green seaweed, Cladophora socialis, by extraction with dilute acid and purified by fractional precipitation. The polymer is composed of galactose (58.3%), arabinose (31.8%), xylose (10.6%) and sulphate (16.9%). The results of methylation analysis, periodate oxidation and partial acid hydrolysis studies indicate that the polymer is a branched one and is composed of 1,3-linked galactose and 1,4-linked arabinose units. Xylose is present at the non-reducing end position of the branches. Both arabinose and galactose carry branches. Desulphation and subsequent analysis of the polymer show that some of the arabinose units carry sulphate groups at C-3 and some of the galactose units carry the sulphate groups at C-4 and some at C-4 and C-6 as well.
一种硫酸化杂多糖，[α]27D + 59.9°，已通过用稀酸提取从绿藻团集刚毛藻中分离出来，并通过分级沉淀进行纯化。该聚合物由半乳糖（58.3%）、阿拉伯糖（31.8%）、木糖（10.6%）和硫酸盐（16.9%）组成。甲基化分析、高碘酸盐氧化和部分酸水解研究结果表明，该聚合物是一种支链聚合物，由1,3-连接的半乳糖和1,4-连接的阿拉伯糖单元组成。木糖存在于支链的非还原端位置。阿拉伯糖和半乳糖都带有支链。对该聚合物进行脱硫及后续分析表明，一些阿拉伯糖单元在C-3位带有硫酸基团，一些半乳糖单元在C-4位带有硫酸基团，还有一些在C-4和C-6位也带有硫酸基团。
