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中文摘要：
采用热水浸提法提取南瓜粗多糖并对从中分离得到的南瓜AP1多糖进行结构分析。采用分光光度法,以半乳糖醛酸为对照品测定糖醛酸含量;采用高效凝胶渗透色谱法测定其相对分子量;采用紫外-可见光谱法、红外光谱法、气相色谱法及原子力显微镜对其进行化学结构分析。结果显示:南瓜AP1多糖的糖醛酸含量为38.87%,平均分子量为2.0×105D,不含核酸及蛋白质,由阿拉伯糖、鼠李糖、核糖、果糖、半乳糖、葡萄糖组成,具有糖类物质的特征吸收峰,同时存在呋喃环和吡喃环,具有高度分枝的结构,并且糖链间形成小环或螺旋结构。
英文摘要：
Crude pumpkin polysaccharide was obtained by hot water extraction, and then the pumpkin polysaccharide AP1 was separated from the precipitate by cetyltrim-ethlammonium bromide (CTAB) method. The content of uronic acid in pumpkin AP1 polysaccharide was determined by spectrophotometric method with galacturonic acid as reference susbtance, its relative molecular weight was determined by high performance gel permeation chromatography (HPGPC), and its chemical structure was analyzed by the techniques of ultravio...
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A monolayer study on phase behavior and morphology of binary mixtures of sulfatides with DPPC and DP
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