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BI-MwA分子量測量應(yīng)用案例-7
閱讀：281 發(fā)布時間：2014-12-16
文獻名： Chemical characterization of Artemisia seed polysaccharide
作者： Ji Zhang, Jian Wu, JunYu Liang, ZhongAi Hu, YunPu Wang , Shengtang Zhang
Gansu key laboratory of polymer materials, College of Life Science, Northwest Normal University, Lanzhou 730070, China
摘要：Artemisia seed polysaccharide (ASP) has great potential to be used as stabilizer, water retention agent and filmogen due to its high viscosity. This study reports analyses of its composition and molecule weight using gas chromatography (GC) and light scattering techniques. The molecular structure of the ASP at different concentrations was observed with atomic force microscopy (AFM). The relationship between structural and physical characteristics of ASP was also described in details. Our results showed that the ASP was composed of l-arabinose (l-Ara), d-xylose (d-Xyl), d-lyxose (d-Lyx), d-mannose (d-Man), d-glucose (d-Glu) and d-galactose (d-Gal). Its molecular weight was about 1.42 × 105. The ASP molecule had a linear backbone with branches. The network structure of ASP was formed through entanglement between the molecules of the polysaccharide.
關(guān)鍵詞：Artemisia seed polysaccharide; Atomic force microscopy; Images; Monosaccharide constituents; Molecular weight