【摘要】 通过水提醇沉法提取川芎多糖,多糖经三氟乙酸水解后,乙酰化,用气相色谱-质谱(GCMS)的方法分析其单糖组成及摩尔比,红外光谱分析其结构。由实验可知,红外光谱分析表明川芎多糖具有多糖特征吸收峰,且含β构型的吡喃糖苷键。经GC-MS分析,川芎多糖由葡萄糖、半乳糖、阿拉伯糖、木糖、鼠李糖、甘露糖组成,其摩尔比为7.67:2.08:1.85:1.26:1.26:1。更多还原

【Abstract】 Ligusticum wallichii polysaccharide was extracted by the method of water extraction and alcohol precipitation and was polysaccharided through three trifluoroacetic acid hydrolyzation,gas chromatography-mass spectrometry(GC-MS) method was used to analyze the monosaccharide composition and molar ratio after acetylation. The structure was infrared by infrared spectrum analysis.The results show that the absorption peak of β-Pyranoside bond by the infrared spectrum analysis was that of Ligusticum wallichii polysaccharide. The molar ratio of Ligusticum wallichii polysaccharide composed of glucose,galactose,Arabia sugar,xylose,rhamnose and mannose is 7.67:2.08:1.85:1.26:1.26:1 by the analysis of GC-MS.更多还原