摘要
目的制备相对低分子质量异枝麒麟菜硫酸多糖.方法采用超声波辅助过氧化氢氧化降解异枝麒麟菜硫酸多糖,并测定各多糖样品的相对分子质量及硫酸基、3,6-内醚半乳糖含量.结果制备了相对分子质量为5000～40000的硫酸多糖,其硫酸基含量均在18.5%以上.结论该方法适合于制备相对低分子质量高水溶性多糖,后处理简单,并能较好地保持多糖中的硫酸基.
Objective To prepare low molecular weight Eucheuma striatum sulfated polysaccharides. Methods Eucheuma striatum sulfated polysaccharides were degraded with hydrogen peroxide under the ultrasonic wave. Molecular weight and the content of sulfate radical, 3,6-anhydro-galactose of all sulfated polysaccharides were determined. Results The polysaccharides with molecular weight from 5000 to 40000 were prepared and the content of sulfate radical was above 18.5 %. Conclusion This method is fit for preparing low molecular weight and good water-solubility polysaccharides. The post-treatment is simple and the method keeps the sulfated radical perfectly.
出处
《中国海洋药物》
CAS
CSCD
2005年第4期10-13,共4页
Chinese Journal of Marine Drugs
基金
广东省"十五"重大科技专项(2002A3050503)
广东省自然科学研究团队项目粤科基办[2003]11-039213
广东省重点科研成果推广项目粤财企(2001)382-C40205
关键词
异枝麒辟菜
硫酸多糖
氧化降解
过氧化氢
超声波
Eucheuma striatum
sulfated polysaccharides
oxidative degradation
hydrogen peroxide
ultrasonic wave
